3 01 1 Circuit Break. GL314 Installation Manual

Content

Instruct Instruction ion Manual anual

SF6 circuitircuit--breaker breaker GL314 With ith spring spring opera operatting mechanisms chanisms FK3FK3--1

Adm Ad ministrator AHT

06--2004 E

ALSTOM

Fir First issue 15--04--2004

Com Compiled by J .C. Labadie

Approved by App X. Allaire

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Content

Instruct Instruction ion Manual anual This page is intentionally intentionally blank.

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Content

Instruct Instruction ion Manual anual Safety

P rodu roduct ct safet safety y sheet sheets s

Annexes

Technical echnical dat data

Tec Tech hnical ical char charac actteris eristtics ics

L10--006EN/02

Descript Description ion and and opera operattion

General General descrip descripti tion on of the circuit circuit---breaker -breaker

Descript Description ion of the the interr interrup upti ting ng cham chamber

P ole operat operation ion (inte (interru rrupt pting ing princi principle ple))

Operating Operating device device

SF 6 gas monitoring

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Packa Packagin ging g - Shippin Shipping g and stor stora age P ackaging ackaging -- Identificati Identification on -- Stor S torage age

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Content

Instruct Instruction ion Manual anual Installation

E recti rection on gener general al instru instruct ction ions s

Tig Tightenin ening g torq orques

T30--002EN/01

T31--001EN/02

E recti rection on gener general al proced procedur ures es

T31--003EN/01

Check Checkin ing g for for prese presenc nce e of SF 6 gas gas in pole poles s

Check Checkin ing g for for prese presenc nce e of stop stop ring ring of the “fusib fusible le” ” pin

S upportupport--frame -frame assembly assembly

Installi Installing ng term termina inals ls with ith prepar preparat ation ion of cont contact surfaces

Calcu Calcula lattion ion of the SF 6 gas gas filli filling ng pressu pressure re for for using using the pressu pressure re gaug gauge e (too (tool) l)

Fillin Filling g with ith SF 6 gas

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Liftin Lifting g and and posit positio ionn nnin ing g the pole pole

Installi Installing ng the operat operating ing device device

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Content

Instruction Manual

Commissioning

Pre--commissioning inspections

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Maintenance

Maintenance plan

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Electrical wear limits

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Electrical contact densimeter threshold inspection

Intervention on the operating device

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Replacing the operating device FK3--1

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Annexes

Tooling and accessories

Product safety sheets

Acceptance criteria

Manual operations (FK3--1)

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PS0000/A

CA 103 141/3/004

Instructions on the handling of used SF 6 gas and decomposition products

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Content

Instruction Manual This page is intentionally blank.

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Technical data

Technical characteristics

GL314 technical characteristics

Performances

U r I r f r I p I k

U d

U p

I sc

The table below gives the circuit--breaker performances :

Designation Rated voltage (r.m.s. value) kV Standard Rated normal current A Rated frequency Hz Rated withstand current (peak value) kA Short--time withstand current (r.m.s. value) kA Rated insulation level (At sea level) Rated short--duration power--frequency withstand voltage (r.m.s. value) kV D Phase--to --earth and phase--to --phase kV D Across open contacts Rated lightning impulse withstand voltage (peak value) kV D Phase--to --earth and phase--to --phase kV D Across open contacts Rated breaking current in symmetrical short-kA circuit Rated making current (peak value) kA Total break time ms Rated operating sequence Resistance of main contacts (new contact)

←τ

GL314 245 IEC 3150 50 100

242 ANSI 3150 60 108

60 108 40

460 460

425 425

1050 1050

900 900 40

100

108

108

40  2 CO -- 15s -- CO or O -- 0.3s -- CO -- 3min -- CO chamber without H.V. connectors ® 55

The above characteristics are of a general nature, only those values given on the circuit--breaker’s rating plates are contractually binding. Continued on next page.

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Technical data

Technical characteristics

GL314 technical characteristics , continued

SF6 gas

The table below gives the SF6 gas characteristics : NOTE : Two pressure scales are possibles, depending the specifications of the apparatus. GL314

Absolute pressure at 20C(68F) Filling absolute pressure for the insula0.75 MPa 0.85 MPa pre tion (108.8 p.s.i.) (123.2 p.s.i.) i.e. effective pressure at 20C(68F) and 101.3 kPa Filling rated effective pressure 0.65 MPa 0.75 MPa + 0.01 pre -- 0 for the insulation (94.3 p.s.i.) (108.8 p.s.i.) Alarm effective pressure for the + 0.02 0.54 MPa ( pme+0.03 MPa) 0.64 MPa ( pme+0.02 MPa) pae -- 0 insulation (78.3 p.s.i.) (92.8 p.s.i.) Minimal effective pressure for 0.51 MPa 0.61 MPa + 0.02 pme -- 0 the insulation (74 p.s.i.) (88.5 p.s.i.) SF6 mass 16.5 kg 19 kg for one three--pole circuit--breaker SF6 gas density pre 49.59 kg/m3 57.04 kg/m3 pae 41.66 kg/m3 48.86 kg/m3 pme 39.55 kg/m3 46.68 kg/m3 The above characteristics are of a general nature, only those values given on the circuit--breaker’s rating plates are contractually binding.

Operating device

The table below gives low voltage components characteristics of the FK3--1 operating device :

Auxiliary voltages (usual) : U a Opening and closing circuits Heating (and lighting) circuits Motor Consumption : Closing and opening coils Permanent heating Motor

48--110--125--220-- 250 V (dc) 220 V (ac) 110--220 (dc) or 220 V (ac) 340W / coil 50 W ® 800 W (dc) or ® 950 VA (ac)

The above characteristics are of a general nature, only those values given on the circuit--breaker’s rating plates are contractually binding.

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Description and operation

General description of the circuit --breaker

Circuit--breaker GL314 with spring operating mechanism FK3--1

Description

The circuit--breaker is made up of three poles, each activated by a spring operating mechanism.

Diagram

A C

B

D

Parts table

The table below gives the main parts of the circuit--breaker : Mark A B C D

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Component Pole of the circuit--breaker Support--frame Operating device Marshalling cubicle

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Pole of the circuit --breaker

Description

The pole of the circuit--breaker is made up with three main components : D The interrupting chamber (1). D The

support column (2).

D The

housing of the mechanism (3).

5

Diagram

1

5 2 3

3

4

7

Interrupting chamber

Support column

Housing of the mechanism

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The pole is comprised of an interrupting chamber (1) in a ceramic or composite envelope -- laid out vertically -- equipped at each end with an HV terminal (5).

Consisting of one or two ceramic or composite insulators, the support column (2) allows the circuit--breaker to be ground--insulated and it also encloses the operating tie--rod which is attached to the interrupting chamber’s moving contact.

A housing (3) -- situated at the base of the column -- contains the lever and crank assembly and which operates the moving contact. The SF6 filling and monitoring device (7) is also situated on the housing. An external cylinder (4) mechanically links the pole to the operating device.

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Support--frame

Description

The support--frame (9) is fastened to the ground and supports all the circuit-breaker components. The support--frame may be supplied by either ALSTOM or the customers.

Diagram

9

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Operating device

Description

Theoperating device (10) is a spring operating mechanism of the FK3--1 type. The door of the operating device (10) is equipped with two windows. These windows permit to display the optical signalization of the circuit--breaker state and closing spring state.

Diagram 10 3

Fastening

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The operating device is fastened on the housing (3).

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Marshalling cubicle

Description

The marshalling cubicle (D) is fastened on the ground near the central pole. Included with : D The relays required to operate the circuit--breaker. D The

interconnection terminals boards.

D The

terminals boards.

Diagram

D

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D

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Description of the interrupting chamber

Presentation

Quenching medium

The quenching medium is pressurized SF6 gas or -- in particular instances -pressurized SF 6+CF4 gas mixture.

Interrupting principle

The interrupting chamber is of thermal blasting type, using the energy from the arc, with an auxiliary autopneumatic effect.

Description

The interrupting chamber has been designed in such a way as to increase the mechanical resistance of the working part and take advantage of the lowwear rate of the contacts subjected to the arc in SF6. The working part is enclosed in a leak tight ceramic envelope, providing insulation between the circuit-breaker input and output. The chamber is made up of the following elements : 1

Mark 2

11

Component

1

Terminal

2

Fixed contact support

3

Main contacts

4

Moving contact

5

Moving contact support

6

Envelope

10

Arcing contacts

11

Fixed contact rod

12

Insulating nozzle

13

Valve

12

6

10

4

13 5

1

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Pole operation (Interrupting principle) Presentation

Introduction

In “CLOSED” position the current passes through : -- the terminal (1), -- the fixed contact support (2), -- the main contacts (3), -- the moving contact (4), -- the moving contact support (5), -- the opposite terminal (1).

1

2 3

4

5

1

In this module

This module contains the stages of the pole operation : Stage Opening Closing

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Pole operation (Interrupting principle) Opening

Description

When an electrical or manual opening order is given, the energy accumulated in the opening spring (7) -- inside the operating device -- is released. The insulating tie--rod (8), directly activated by the opening spring (7), transmits the movement to the moving contact (4) which causes the contacts to separate.

4

8

7

Continued on next page.

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Pole operation (Interrupting principle) Opening , continued

Operation

The table below gives the stages of opening : Stage Start of opening

Description When the moving contact (4) separates from the main contacts (3), the current is switched onto the arc contacts (10). The compression of the (Vp) volume causes the first rise of pressure.

3

10

4

Vp

Thermal effect When the contacts (10) separate, the arc appears and its energy causes the pressure to rise in the thermal expansion volume (Vt), closed by the fixed contact rod (11) and the insulating nozzle (12).

11 Interrupting and assistance at opening

12

10

Vt

When the rod (11) comes out of the nozzle (12), the thermal overpressure in the volume (Vt) is released causing an energy blast to occur, just before the current zero passage, ensuring final quenching of thearc. The (Vp) volume pressure decreases to the ambiant pressure by means of the valve (13) to allow the end of the opening.

11

12

Vt

Vp

13


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Pole operation (Interrupting principle) Opening , continued

Operation, continued

The table below gives the continuation of opening stages : Stage “OPEN” position

Special case of small currents

Description The arc has been extinguished. The SF6 molecules, separated by the arc, are re-formed instantaneously. Residual gases left over from the interruption operation are absorbed by the molecular sieve, situated at the base of the pole. A few powdery compounds are deposited in the form of dust which is quite harmless for the circuit breaker.

For small currents (example : operating no--load lines, transformers or capacitor banks), the thermal energy of the arc is too low to provide enough excess pressure. Consequently, the conventional autopneumatic effect developing in the volume (Vp) is used mainly, to blast the arc.

Vp

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Pole operation (Interrupting principle) Closing

Description

When an electrical or manual closing order is given, the energy accumulated in the closing spring (15) -- situated inside the operating device -- is released. This energy is transmitted directly to the pole operating shaft (16), to ensure closing. Therelease of the energy storedup in theclosing spring (15) causesdisplacement of the moving parts -- and so the closing of the interrupting chamber -and also reloads the opening spring (7).

16

15

7

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Operating device

Presentation

Introduction

The operating device is a spring operating mechanism of type FK3--1. The operating mechanism is usually electrically remote--controlled. During commissioning or when auxiliary voltage is lacking, operations can also be performed directly on the mechanism.

Warning

OPERATION AUTHORIZED ONLY IF THE OPERATING DEVICE IS CONNECTED TO THE CIRCUIT BREAKER. THE CIRCUIT BREAKER MUST NOT BE OPERATED AT A SF6 PRESSURE GAS LOWERTHAN THE MINIMAL PRESSURE FOR THE INSULATION p me.

In this module

This module contains the following topics : Topic Description of the mechanism Auxiliary fittings Operating principle

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Operating device

Description of the mechanism

Drive shaft

D The

main shaft (1) is linked up to the the circuit--breaker pole by means of a cylinder (2). D A damper (4) is linked up to the lever (32). In the “CLOSED” position, the main shaft (1) rests on the opening latch (6) by means of the lever (5). D

D The

lever with roller (11) rests on the closing cam (10).

D The

opening spring (3) activates the lever (33) by means of the chain (34). This spring is a pressure helical type.

NOTE : The levers (5)--(11)--(32)--(33) form one piece only. Closing shaft

D

On the closing shaft (7) are placed :

-- The inertia flywheel (8). -- The closing cam (10). -- The cam (26) that engages the limit switch (17) of the motor (12). D The closing spring (9) activates the inertia flywheel (8) by means of the chain (15). This spring is a pressure helical type. The rotation torque -- created on the inertia flywheel (8) by means of the loaded closing spring (9) -- is balanced : closing latch (14) / roller (16). 2

Diagram

6 1

14

3

32

4 9

5 33 16

26

8

10

7

32

15

5 34

11

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33

12 17

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Operating device

Auxiliary fittings

Reloading the closing The closing spring (9) is loaded by means of the reducing gears (13) and the spring motor (12). 13 9 12 13 12

Auxiliary electric fittings

The table below describes the main parts of the auxiliary electric fittings : Auxiliary electric fittings The alarm contacts (30) are activated by a rod and a lever (31), the latter is activated by the main shaft (1).

Diagram 30 31

1

Thelimit switch of the motor (17) is activated by the cam (26) and the lever (35). The cam (26) is installed on the closing shaft (7).

7 26 35 17

The closing latch (14) and the opening latch (6) are electrically activated by coils (22) “Closing” and (27) “Opening”.

27 22 6 14

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Operating device

Auxiliary fittings, continued

Auxiliary mechanical fittings

The table below describes the main parts of theauxiliary mechanicalfittings : Auxiliary mechanical fittings The operating mechanism can be activated by the manual levers (24) “Closing” and (28) “Opening”.

Diagram 24

28

The indicator (29) gives the “OPEN” or “CLOSED” positions of the circuit-breaker. An operation counter (36) gives the number of realized operations.

36 29

Circuit--breaker Open The indicator (23) gives the “LOADED” or “RELEASED” states of the closing spring.

23

Closing spring Loaded

If the auxiliary current supply fails, the hand--held crank (21) permits the closing spring to be fully loaded.

21

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Operating device

Operating principle

Closing

The table below gives the stages of closing operation :

OPERATION AUTHORIZED ONLY IF THE OPERATING DEVICE IS CONNECTED TO THE CIRCUIT BREAKER. THE CIRCUIT BREAKER MUST NOT BE OPERATED AT A SF6 PRESSURE GAS LOWERTHAN THE MINIMAL PRESSURE FOR THE INSULATION p me. Stage 1

Description When the closing coil is stimulated or the manual closing lever is operated, the closing latch (14) releases the inertia flywheel (8).

Diagram 14

8 2

D The closing shaft (7) effects a 180 rotation generated by the loaded closing spring (9). 

The cam (10) rotates the main shaft (1) by means of the lever with roller (11). After a 60 rotation, the lever (5) rests on the opening latch (6). D

5

6

33

11 1



60



7 3

2 bis

the D Simultaneously, opening spring (3) is loaded by means of the chain (34) activated by the rotation of the lever (33). D A

freewheel, installed on the gear wheel (19), avoids the reducing gears (13) and the motor (12) being driven by the gear wheel of the inertia flywheel (8).

NOTE : A device prevents all closing operations if the circuit--breaker is already in the “CLOSED” position.

180



9 10 34

8 19 12 13

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Operating device

Operating principle, continued

Reloading the closing When the motor (12) is supplied with current, it immediately starts to load spring the closing spring (9) by means of the reducing gears (13) of the inertia flywheel (8) and the chain (15). At the full stroke, the gear (19) is at the no tooth sector of the inertia flywheel (8) and the reducing gears (13) can stop without causing strain on the closing latch (14). NOTE : During the loading of the closing spring, the supplying circuit of the closing coil is cut to avoid an untimely closing operation. 14 8

8 9 19

15 12 13

Opening

D When the opening coil (27) is stimulated or the manual opening lever (28) is operated, the opening latch (6) releases the lever (5).

The main shaft (1) effects a 60 clockwise rotation -- generated by the loaded opening spring (3) -- before reaching the circuit--breaker “OPEN” position. D

D



A damper (4) dampens the excess energy to smoothly finish travel.

OPERATION AUTHORIZED ONLY IF THE OPERATING DEVICE IS CONNECTED TO THE CIRCUIT BREAKER. THE CIRCUIT BREAKER MUST NOT BE OPERATED AT A SF6 PRESSURE GAS LOWERTHAN THE MINIMAL PRESSURE FOR THE INSULATION p me. 6 5 4

60



3 1

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SF6 gas monitoring Presentation

Introduction

Principle

The circuit--breaker uses pressurized SF6 gas as electric arc quenching gas. The SF6 gas pressure monitoring is essential to assure the circuit--breaker performances.

There is two SF6 gas pressure monitoring types : D Permanent monitoring with the help of a threshold densimeter. D Periodic

Symbols

IEC symbols for the apparatus technical characteristics. Symbol p re p ae p me

In this module

monitoring with the help of a dial densimeter (visual control)

Designation Filling rated pressure for the insulation Alarm pressure for the insulation Minimal pressure for the insulation

This module contains the following topics : Topic Gas pressure and density Pressure measurement Measuring density Densimeter

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SF6 gas monitoring Gas pressure and density

Introduction

The electrical characteristics of switchgear depend on the density of SF6 gas i.e. the mass of gas pumped into a compartment of a given volume.

Constant temperature

At constant temperature, an increase of gas density results in a higher gas pressure against the walls of compartment.

Constant density

At constant density, with an fixed compartment volume, the pressure changes in the same way as the temperature. Since the gas density remains invariable owing to the fact that no modification occurs in the quantity of gas or the volume of the relevant compartment, the electrical characteristics of the switchgear will remain unchanged.

Conclusion

Since it is difficult to measure the gas density directly, it is essential to know accurately its absolute pressure and temperature.

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SF6 gas monitoring Pressure measurement

Effective pressure ? Absolute pressure ?

Absolute pressure = effective pressure + atmospheric pressure

Pressure

Description The pressure of SF 6 gas is measured by of a standard pressure gauge witha deformable diaphragm actuating an indicating pointer. One surface of the diaphragm is in contact with the SF6 gas, while the other is in contact with the atmosphere. The difference between the Effective gas and the atmosphere is thus measured, taking atmospheric pressure as a reference. This is the measurement of the effective pressure of the SF6 gas.

Diagram Standard pressure gauge

SF6 Atmospheric pressure If the deformable diaphragm, one surface of which is in contact with the SF6 gas, blocks a volume where a vacuum has been developed, the pressure gauge measures the pressure difference between that of the SF6 gas and the vacuum. Since the latter is zero, the pressure gauge measures the absolute pressure of the gas. The absolute pressure of the SF6 gas, independent of atmospheric pressure, reflects the quantity of Absolute gas introduced into the compartment and hence its density at the present temperature. This is measured by means of an absolute pressure gauge which is less generally used and more delicate than a effective pressure gauge. This is the reason why a effective pressure gauge is used, provision being made for corrections required by atmospheric pressure variations resulting from atmospheric disturbances and differences of elevation.

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Absolute pressure gauge

SF6 Vacuum volume

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SF6 gas monitoring Measuring density

Pressure units

D

The international unit pressure is the Pascal (Pa).

The practical unit is the bar (14.503 p.s.i.) 1 bar = 1,000 hPa 1 bar = 100 kPa 10 bar = 1 MPa D Standard atmospheric pressure is equal to 101.3 kPa at sea level and an air temperature of 20 C (68 F). D



Measuring density



When it is not possible to directly measure density, this may be checked using an industrial pressure gauge capable of measuring the effective pressure . An effective pressure value corresponds to the rated density, determined for normal atmospheric pressure (101.3 kPa) and an ambient temperature of 20 C (68 F). 



For each pressure reading (filling, inspection of densimeter thresholds...), the rated effective pressure should be corrected according to the ambient temperature and atmospheric pressure of the site at the time thereading is taken. See the module “Calculation of the SF6 gas filling pressure to using the pressure gauge (tool) ”. The real pressure is therefore :

Preal = P rated effective in accordance with temperature + ∆Pp* *

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∆Pp : correction

in accordance with atmospheric pressure .

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SF6 gas monitoring Densimeter

Function

D Permanent D Visual

SF6 gas density monitoring.

SF6 gas real pressure information (MPa -- psi).

Localization

The densimeter is situated onto the bottom of the pole of the circuit--breaker, and joined to the gas volume of the circuit--breaker.

Working

The densimeter is fitted with internal contacts. These contacts close successively if the gas’s density diminishes and determine 2 distinct thresholds. These contacts are wired to the terminal block inside the cubicle and are usually left at the user’s disposal for the following use : D Alarm pressure ”p ae” acts as a warning (topping up necessary). Minimum functional pressure for insulation ”p me” must be used either to lock the circuit--breaker in position or to cause automatic opening. The option is chosen by the client in keeping with operating requirements. D

All the circuit--breaker’s rated performances are guaranteed up to the minimum specified ambient temperature and the minimum functional pressure for insulation ”p me”. Continued on next page.

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SF6 gas monitoring Densimeter, continued

Reading the dial

The dial is divided into three colored areas : Green, Yellow and Red. Theposition of the needle indicates the SF 6 gas effective pressure value.

-1 0

Needle position

Colored area

Direction

GREEN

None

YELLOW

Perform a topping--up operation.

RED

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Abnormally low density, find the origin of the leak and contact ALSTOM T&D S.A. After--sales Service .

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Packaging -- Shipping and storage

Packaging -- Identification -- Storage

Presentation

Information

The poles are filled with gas SF6 for transport purposes to an effective pressure of 0.3 bar 20 C (1,013 hPa). 

In this module

This module contains the following topics : Topic Packaging Identifying sub-- assemblies and their packaging Storage

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Packaging

Introduction

For transport, the different parts of the apparatus are divided--up between several cases. Thenumber of cases and their contents depend of dimensions of the pole of the circuit breaker.

Example 1

D A

main case containing : -- The poles. -- The operating devices vacuum--wrappedin a protectivebag containing desiccants. -- The different frame parts if the latter is supplied by ALSTOM. -- The marshalling cubicle. -- Connection cables, if supplied by ALSTOM. D The SF6 bottle(s) or depending of the apparatus SF6 bottle(s) and CF4 bottle(s). A case containing assembly products (grease, oil, etc.) required for installation. D

A case containing the accessories : spare parts ...

D

Example 2

D A

main case containing : -- The poles. -- The different frame parts if the latter is supplied by ALSTOM.

A case containing the operating devices. The operating devices are vacuum--wrapped in a protective bag containing desiccants. D

D A

case containing the marshalling cubicle.

D The

SF6 bottle(s) or depending of the apparatus SF6 bottle(s) and CF4 bottle(s). A case containing assembly products (grease, oil, etc.) required for installation. D

A case containing the accessories : spare parts ...

D

GL314 Packaging case type

Example

o es Operating devices Marshalling cubicle * SF6 gas Necessities (products) for assembly Accessories *

1 1 1

Length cm

Width cm

Height cm

1

537 -- 600

219

113

2

580 -- 625

183

113

2

251

78

113

2

178 111

72 80

113 190

2

188

58

65

2

60

60

70

2

80

60

70

Gross weight kg

* Depending of the apparatus

NOTE : the values in the above table are given as an indication so that an appropriate means of lifting can be envisaged.

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Identifying sub--assemblies and their packaging

Introduction

Each circuit--breaker sub--assembly (poles, operating mechanism, etc.) is identified by a plate giving its reference numbers. These numbers are marked on the packaging cases of each sub--assembly.

Example of marking and identifying

-- Manufacturer reference No. = 101 525 -- Circuit--breaker identification No. 1 -- Pole No. 2 IDENTIFICATION OF SUB-ASSEMBLIES AND TOOLING

MARKING OF PACKAGING CASES

MANUFACTURER REFERENCE No.

2

1

101 525 0010 0101

101 525 0010 no SÉRIE Rep. 01/2 POLE No.

CASE No.

CIRCUIT--BREAKER IDENTIFICATION No.

Place of the plates

Choose and install the components identified by the plate (1) and self-adhesive (3).

101 525 0010 no SÉRIE Rep. 01/2 1

OUTSIDE PLATE

3

INSIDE PLATE

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Storage

Introduction

The storage procedures defined below are for storage times of less than 2 years. For longer periods, special packaging must be designed and appropriate procedures devised.

Short--term storage (6 months)

Theapparatus must be storedin its transport packaging and placed on beams in a flood--proof place.

Medium --term storage The table below indicate how to stock the main components of the circuit-(less than 2 years) breaker for a medium--term storage : Component Circuit--breaker pole

Operating device

Storage The apparatus must be stored with its transport packaging open whilst placed on beams in a closed, but ventilated, flood--proof place. The operating device should be stored in the same place as the circuit--breaker, these two sub--assemblies being inseparable. Check that the vacuum packaging is leak--tight. If this has been damaged, proceed as follows : D Completely remove the packaging protection so that air can enter through thevents of therear plate and side panels. D In

order to prevent corrosion damagedueto formation of condensation, it is mandatory that the heating circuit be switched on.

ANY CHANGE OF LOCATION OF THE APPARATUS (EVEN AFTER COMMISSIONING) SHOULD BE DONE AT A REDUCED PRESSURE OF 0.3 BAR.

09--2003 E ALSTOM

L22--008EN/01 4/4

Installation

Erection general instructions

Erection general instructions

Instructions of environment

The table below gives the instructions of environment to respect for the erection : Instruction

Erection instructions

A

Verify the Civil engineering work : dimensions, levels of concrete pads (structure fixation), in accordance with the tolerances given by Civil work standards (refer to circuit--breaker outline).

B

Avoid any dust production and masonry work during erection of the circuit--breaker.

The table below gives the instructions to respect for proper erection of the circuit--breaker : Instruction

Warning

07--1998 E ALSTOM

Comment

Comment

1

Read all the “Installation” modules completely before beginning erection works. The erection instructions describe all the procedures to be carried out as well as their chronological order.

2

Handle sub--assemblies in a correct manner, particularly insulators.

3

The shipping case should be open as required during erection procedures. CAUTION : Respect sub--assemblies identification.

4

When shipping covers are removed, proceed to the next assembly sequence in as short as possible time. Store the shipping covers under shelter, for a possible future use.

5

Respect references to i.e. :“Tightening torquesI”.

other

modules,

No responsibility is taken over by ALSTOM T&D S.A. for damages and disturbances resulting out of non--adherence to the “Installation” modules. T30--002EN/01 1/2

Installation

Erection general instructions This page is intentionally blank.

07--1998 E ALSTOM

T30--002EN/01 2/2

Installation

Tightening torques

Presentation

Introduction

In the assembling with screws, all the fastening screws must be “greased” before torque tightening.

Products used

The table below gives the list of the used products for the screws before tightening : Designation

ALSTOM item reference --01835208 Grease (1kg box) --01835118 Contact grease (200g tube) --01835265 Silicon grease (100g tube) --01818327 Glue (250ml)

In this module

E ALSTOM

MOBIL OIL

EPMF

Supplier item reference MOBILPLEX 47 MOBILUX EP3 CONTACTAL HPG

SAMARO

MOLYKOTE 111

LOCTITE

LOCTITE 225

This module contains the following topics : Topic Screw greasing before tightening Tightening torques values

06--2002

Supplier

Page 2 3

T31--001EN/02 1/4

Installation

Tightening torques

Screw greasing before tightening

Choice of the product to use

The table below gives the product to use for the screws before tightening depending on the assembling type : If assembling... usual electrical connections

with seals

Where to apply the product ?

Product to use ... MOBILPLEX 47 MOBILUX EP3 CONTACTAL HPG Can be dismantled ? YES NO

Product ... MOLYKOTE 111 LOCTITE 225

The table below indicates the part of the screws to treat with the appropriate product before tightening depending on the assembling type : If assembling...

With screws

With bolts

usual

electrical connections

Tapping or threading with seals

06--2002 E ALSTOM

Tapping or threading

T31--001EN/02 2/4

Installation

Tightening torques

Tightening torques values

Values table

The tool and the tightening method must be such that the torque actually applied to the screw head corresponds with the reference torque shown in the table below, to within a tolerance of  20%.

TIGHTENING TORQUES in daN.m STEEL SCREWS

06--2002 E ALSTOM

CLASS 6.8 or STAINLESS A2--70, A4--70 STAINLESS A2--80, A4--80

CLASS 8.8

M2,5

0,05

0,06

M3

0,09

0,11

M4

0,19

0,26

M5

0,38

0,51

M6

0,66

0,88

M8

1,58

2,11

M10

3,20

4,27

M12

4,97

6,63

M14

8,67

11,56

M16

13,42

17,90

M20

26,22

34,98

M24

45,68

60,93

M30

90,44

120,65

T31--001EN/02 3/4

Installation

Tightening torques This page is intentionally blank.

06--2002 E ALSTOM

T31--001EN/02 4/4

Installation

Erection general procedures

Presentation

Introduction

During the erection of the circuit--breaker, some particular mounting or checking operations will be realized.

In this module

This module contains the following topics : Topic Preparing and installing static seals Screw sealing Using a water pressure gauge

09--1998 E ALSTOM

Page 2 3 5

T31--003EN/01 1/6

Installation


Preparing and installing static seals

Necessary products

List of the ALSTOM products necessary for the installing : ALSTOM reference

Process

Can of ISOPROPANOL (1l)

--01835265

MOLYKOTE 111 (100g tube)

The table below gives the steps of installing static seals :

2

3

4 5

Action Clean bearing grooves and surfaces using ISOPROPANOL. Rid the seal of all foreign bodies such as paintbrush bristles or filings... Remove (where applicable) the color identification point with fingernail, never with a sharp instrument. Lightly lubricate the seal by hand using MOLYKOTE 111 grease.

Comment

Check the condition of the seal which should present no scratches or deformation (it should be neither flattened, stretched, nor broken).

Do not use a brush to do this. Eliminate excess grease by squeezing the seal between fingers, leavingonlya thin layer on the entire surface.

Put the seal(s) in place. Lubricate both bearing surfaces Do not put grease on the inside with MOLYKOTE 111. surface. Fill the residual volume of the seal’s outside groove with grease.

Greasing zone

E ALSTOM

Designation

-- 01861262

Step 1

09--1998

Diagram

Only seals are greased in this zone

Greasing zone

T31--003EN/01 2/6

Installation


Screw sealing

Introduction

Necessary products

To prevent humidity from penetrating SF6 gaskets, the outer mounting screws should be sealed by applying an appropriate product. NOTE : This procedure should be applied to all assemblages of parts submitted to SF6 pressure and electrical connection assembling.

List of the ALSTOM products and accessories necessary for the screw sealing : ALSTOM reference

Choice of the product to use

Diagram

Designation

--01818327

LOCTITE 225 (250ml)

--01835265

MOLYKOTE 111 (100g tube)

--01835118

CONTACTAL HPG (200g tube)

The table below gives the product to use for the screw sealing depending on the assembling type : If assembling...

with seals

electrical connections

Product to use ... Can be dismantled ? YES NO

Product ... MOLYKOTE 111 LOCTITE 225

CONTACTAL HPG


09--1998 E ALSTOM

T31--003EN/01 3/6

Installation


Screw sealing , continued

Where to apply the product ?

The table below indicates the part of the screws to treat with the appropriate product before tightening depending on the assembling type : Assembling with screws

Assembling with bolts



09--1998 E ALSTOM

T31--003EN/01 4/6

Installation


Using a water pressure gauge

Introduction

In each assemblage performed using a double seal (1) and (2), the volume (3) communicates with the outside by a channel (4), blocked--off by a plug (5) or (6), so that leak--tightness can be checked. 1 3 2 4 6

5

Process

The table below gives the steps of the leak--tightness checking using a water pressure gauge : Step 1

Action Remove the leak test plug (5) or (6) and its seal (7) if necessary, leave open for half an hour.

Diagram 7

5

6

2...3 turns 2

Connect up the water pressuregauge (8), using the adapter (9) or (10).

10 8 9

3

Fillthe water pressuregauge’s U tube to half way up. NOTE : If temperature is less than 0 C, use an anti--freeze mixture instead of water. D After a few minutes note the water column level R1. 

H R2 R1

the water column level R2 again after half an hour. The displacement H should be less than 10 mm. D Note

4

At the end of the inspection, pull the adapter of the water pressure gauge and replace theleak test plug (5)or (6) and its seal (7), where required. 5

7 6

09--1998 E ALSTOM

T31--003EN/01 5/6

Installation

Erection general procedures This page is intentionally blank.

09--1998 E ALSTOM

T31--003EN/01 6/6

Installation

Checking for presence of SF 6 gas in poles Presentation

Introduction

Thepoleare filled with SF6 gas for transport purposes to an effective pressure of 0,03 MPa at 20 C (101.3 kPa). 

Necessary tools

List of the necessary ALSTOM tools for the checking for presence of SF6 gas in poles : Mark

3

In this module

Diagram

Designation

Filling tool

E ALSTOM

1

This module contains the following topics : Topic Pole checking when the cases are opened on the site Checking for presence of SF6 gas in poles

06--2003

Number

Page 2 3

L31--059EN/01 1/4

Installation

Checking for presence of SF 6 gas in poles Pole checking when the cases are opened at site

Preparing the pole

Remove only the cover of the case. Remove partially packaging protection to free the housing (7) of the poles.

7

7

7

Visual inspection of the pôles

D Begin visual

inspection to check the condition of ceramic envelopes. Make sure that their enamel has not been chipped or in any way damaged during transportation. It is of prime importance that the presence of SF6 gas in pole be verified before going any further with installation D

06--2003 E ALSTOM

L31--059EN/01 2/4

Installation

Checking for presence of SF 6 gas in poles Checking for presence of SF 6 gas in poles Process

Thetable below gives the steps of checking for presenceof SF6 gas inpoles : Step 1

Action Removetheplug (1) and install thefilling tool (3), tighten thefilling tool BY HAND.

Diagram

1 2

3

Unscrewthevalve--cap (4) and press on the valve briefly : some gas should escape.

If no gas is expelled, contact our Customer Service.

4 3

D Replace the valve--cap (4) and remove the filling tool (3).

1

D Re--install

the plug (1), applying a tightening torque of 4 daN.m; leak--tightness is only guaranteed if this condition is respected.

4

06--2003 E ALSTOM

3

L31--059EN/01 3/4

Installation

Checking for presence of SF 6 gas in poles This page is intentionally blank.

06--2003 E ALSTOM

L31--059EN/01 4/4

Installation

Checking for presence of stop ring of the “fusible” pin Presentation

“Fusible” pin

The coupling cylinder of the pole (2) is maintained to circuit--breaker in ”OPENED”position by a ”fusible” pin (1) assembled in factory. The holding of the coupling cylinder -- in this position -- is essential to ensure the coupling with the operating mechanism in good conditions. NOTE : This ”fusible” pin will be broken at the first operation. The holding of the ”fusible”pin -- in its housing -- is ensured by a stop ring (3) held by a screw (4). Before continuing the installation of thepole, checking the presence of this stop ring. 2 3 4 2

1

In this module

This module contains the following topics : Topic Checking the presence of the stop ring of the “fusible”pin Installing the stop ring “site”of the “fusible”pin (in case of absence of the stop ring )

03--2004 E

ALSTOM

Page 2 3

L31--090EN/01 1/4

Installation

Checking for presence of stop ring of the “fusible” pin Checking the presence of the stop ring of the “fusible” pin

Visual inspection

Check the presence of the stop ring (3) of the “fusible” pin. NOTE : If the stop ring (3) is absent, install the stop ring “site”.

3

03--2004 E

ALSTOM

L31--090EN/01 2/4

Installation

Checking for presence of stop ring of the “fusible” pin Installing the stop ring “site” of the “fusible” pin (i n c a s e o f a b s e n c e o f t h e s t o p r i n g )

Necessary components

List of the ALSTOM components necessary for the assembling : Mark

Necessary products

Diagram

Designation

Number

(5)

Stop ring “site”

1

(4)

Screw

1

List of the ALSTOM products necessary for the installing : ALSTOM reference

Diagram

Designation

--01818327

Installing

LOCTITE 225 (250ml)

Install the stop ring “site”(5) and hold in place using the screw (4). NOTE : Stick the screw (4) using LOCTITE 225 and apply a tightening torque of 17 N.m. 5 4

03--2004 E

ALSTOM

L31--090EN/01 3/4

Installation

Checking for presence of stop ring of the “fusible” pin This page is intentionally blank.

03--2004 E

ALSTOM

L31--090EN/01 4/4

Installation

Support--frame assembly

Presentation

Reminder

Frames may be supplied by either ALSTOM or the customer.

In this module

This module contains the following topics : Topic Components necessary for the operation Support--frame components (per pole) Preparing the column Frame--support assembly

06--2003 E ALSTOM

Page 2 3 4 5

L31--113EN/01 1/6

Installation


Components necessary for the operation

Necessary product

Grease MOBILPLEX 47 -- MOBILUX EP3 (screws greasing).

Necessary tools

List of the tools necessary for the installing : Mark

(1)

Lifting equipment

Diagram

Designation

Number

Lifting strap (3 m)

2

Provide for appropriate lifting equipment : (3,000 daN) (minimum)

H+2m H

Handling

06--2003 E ALSTOM

The support--frame assembly operations andlifting the pole should be performed by at least two persons.

L31--113EN/01 2/6

Installation


Support--frame components (per pole)

Introduction

If the support--frame is supplied by ALSTOM, check the necessary components to the assembling.



Designation

Number

(2)

Support

3

(3)

Support

1

Screws H M16-35

8

(7)

06--2003 E ALSTOM

Diagram

L31--113EN/01 3/6

Installation


Preparing the column

Dismantling the case of the poles

Remove the strenghtening beams of the case and free the support legs of the frame. Remove the side panels of the case.

Preparing the pole

D

Sling the pole with the aid of two flexible lifting straps (1).

Extract the pole from the case and put it down on the case wood cover laying : -- first, the interrupting--chamber extremity (4) on a wood wedge, -- second, the upper part of the housing (10) on a wood wedge to ensure the correct installing of the frame supports. D

X minimum = 260 mm 1

1 4

10 X/2



X

06--2003 E ALSTOM

L31--113EN/01 4/6

Installation


Frame--support assembly

Process

The table below gives the steps of installing the supports of the frame : Step 1

Action With the aid of two flexible lifting straps, position the frame--support (2) onto the housing (10) and fasten it with the use of the screws (7).

x2

7

H M16--35 18 daN.m

2 10 2

With the aid of two flexible lifting straps, position the frame--support (3) onto the housing (10) and fasten it with the use of the screws (7).

x2

7

H M16--35 18 daN.m

3 10 Continued on next page.

06--2003 E ALSTOM

L31--113EN/01 5/6

Installation


Frame--support assembly, continued

Process , continued

The table below gives the steps of installing the supports of the frame : Step 3

Action Position the last frame--supports (2) onto the housing (10) and fasten with the use of the screws (7).

x2

x2 7

2

H M16--35 18 daN.m

7 H M16--35 18 daN.m

2

10

06--2003 E ALSTOM

L31--113EN/01 6/6

Installation

Lifting and positionning the pole

Presentation



Diagram

(12)

Necessary tools

Diagram

(1)

ALSTOM

8

Number

LIFTING STRAP (3 m -- 1000 kg)

2

This module contains the following topics :

Lifting the pole Positioning the pole

E

Thick washer

Designation

Topic

07--2003

Number

List of the necessary ALSTOM tools for the lifting and positionning of the pole : Mark

In this module

Designation

Page 2 3

L31--201EN/02 1/4

Installation


Lifting the pole

Process

Install the two flexible lifting straps (1), placing these at the end of the interrupting chamber. By means of a lifting device hoist the pole up whilst allowing it to rest on the base of the frame. Place the trip ropes (10) on the support legs of the frame (9) to ensure guidance of the pole at the time of lifting. Lift the pole with precaution.

1

9 10

07--2003 E

ALSTOM

L31--201EN/02 2/4

Installation


Positioning the pole

Process

The table below gives the steps of positioning positioning the pole : Step 1 2

Action Install Install the lower lower washers washers (12) (12) on the fixation fixation mou mountin nting. g. Use a liftin lifting g devic device e to posit positio ion n the chassi chassis s frame frame onto onto its grou ground nd attachment points points but do not secure it, whilst respecting the orientation of the pole indicated on the sketch of the device.

3

If nece necess ssar ary y, plac place e shim shims s unde underr the the supp suppor orts ts of the the fram frame e so that that the the upper plate is level. Install Install the the upper upper washers washers (12) and clamp clamp the the whole whole to the ground ground using nut. Remov Re move e the liftin lifting g straps. straps. Check Che ck the tighteni tightening ng torques torques of all frame screws. screws.

4 5 6

12 12

12

18 daN.m

07--2003 E

ALSTOM

L31--201EN/ L31--201EN/02 02 3/4

Installation

Lifting and positionning the pole This page is intentionally blank.

07--2003 E

ALSTOM

L31--201EN/ L31--201EN/02 02 4/4

Installation

Installing terminals with preparation of contact surfaces Presentation

Necessary Necessary products and accessories accessories

List of the ALSTOM products and accessories accessories necessary necessary for the installing : ALSTOM reference

Diagram

Designation

-- 01 01861262

Can of ISOPROPANOL (1l)

-- 01835106

Vaseline 204-- 9

-- 01835118

Contactal grease

-- 01831320

Abrasive paper A400

-- 02212334

Rag

-- 02211842

Round brush No.4

-- 02211831

Brush No.16

Necessary document

Take the circuit--breaker layout to know the position of the treminals.

In this module

This module contains the following following topics : Topic Preparing the contact surfaces Installing terminals

08--2000 E ALSTOM

Page 2 3

L31--500EN/03 L31--500EN/03 1/4

Installation

Installing terminals with preparation of contact surfaces Preparing Preparing the contact surfaces

Preparing the contact grease

The conta contact ct grea grease se is a mixtur mixture e compo composed sed of Vaseli aseline ne and and Conta Contacta ctall grea grease se.. CONTACT GREASE = GREASE = 50% Vaseline + 50% Contactal grease

Preparing the contact surfaces

The table below gives gives the steps of preparing preparing the contact surfaces : Step

Action

1

Check the positionning of the terminals using the circuit--breaker layout.

Diagram

X1 2

08--2000 E ALSTOM

Remov Remove e the tem tempo pora rary ry screw screws s from the terminal pads X1 pads X1 and and X2 X2 (an arrow arrow indicate indicates s the terminal terminal positions).

3

Dry Dry rub rub with with fine fine em emer ery y clot cloth. h.

4

Elim Elimin inat ate e the the dust dust prod produc uced ed..

5

Coat Coat with with CONT CONTAC ACT T GREA GREASE SE..

6

Wipe Wipe with with a clea clean n rag, rag, leav leavin ing g just just a thin layer of grease.

7

Rub over over the the grea grease se with with water ater-proof abrasive paper A400.

X2

L31--500EN/03 L31--500EN/03 2/4

Installation

Installing terminals with preparation of contact surfaces Installing terminals

Lower terminal

Assemble immediately the terminals (1) on the interrupting chamber (3) after preparation of contact surfaces. Fasten the terminals using screws (5); use CONTACT GREASE to seal the screws.

x 4 5

H M12--70 5 daN.m

3 2

Upper terminal

Assemble immediately the terminals (1) on the interrupting chamber (3) after preparation of contact surfaces. Fasten the terminals using screws (4); use CONTACT GREASE to seal the screws. 1 3 4

x 4

H M12--45 5 daN.m

Comment

08--2000 E ALSTOM

The electrical resistance value of the assembly should be : R ® 2←τ D Before installing H.V. connectors, prepare the contact surfaces in the same way. D

L31--500EN/03 3/4

Installation

Installing terminals with preparation of contact surfaces This page is intentionally blank.

08--2000 E ALSTOM

L31--500EN/03 4/4

Installation

Installing the operating device

Presentation

Necessary product

Grease MOBILPLE X 47 (screws greasing)

Necessary ALSTOM tools

List of the ALSTOM tools necessary for the installing : Mark

(1)

Diagram

Designation

Number

Lifting strap

1

Lifting equipment

Provide an appropriate lifting equipment (130 daN).

Process

The table below gives the steps of installing the operating device on the pole--support : Step A B C D E F

01--2004 E ALSTOM

Topic Preparing the operating device Positioning the pole operating shaft Coupling the operating device Low voltage electrical wiring Installing side panels of the operating device Permanent heating system

Page 2 3 4 6 7 8

L31--789EN/01 1/8

Installation


Preparing the operating device

Unpacking

Remove packaging protection and check that operating device and pole reference numbers are the right ones.

Optical signalizations Check the position of operating device optical signalization :

Circuit--breaker Open

Removing side panels

Closing spring Released

The table below gives the steps of side panels removing : Step 1

Action Remove the nuts (2) from the left side panel (3).

Diagram

x 2 2 NYLSTOP M8

2

Operating shaft

Take hold of the left side panel (3) from underneath, pull slightlytowards the outside, then downwards toremove it. Proceed in the same way for the right side panel.

3

3

Check the presence of the seal (11) on the operating shaft (13). Check the presence of grease (ASEOL 0--365.2) on the operating shaft (13). 11 13

01--2004 E ALSTOM

L31--789EN/01 2/8

Installation


Positioning the pole operating shaft

“Fusible” pin

The pole is equipped -- for transport purposes and installing the operating device -- with a positioning “fusible”pin (4) of the pole operating shaft. Check the presence of this pin. This pinmustremain inplace during all the operation ofassemblyof the operating mechanism, IT IS STRICTLY FORBIDDEN TO REMOVE IT.

4

01--2004 E ALSTOM

L31--789EN/01 3/8

Installation


Coupling the operating device


List of the ALSTOM components necessary for the operation : Mark

Installing the fastening screws

Diagram

Designation

Number

9

Screw H M16--80

4

10

Washer (979997001)

8

14

Nut H M16

4

Install thescrews (9) -- equippedwith the washers (10) -- inside theoperating device. 10

x 4 10

9 9 Continued on next page.

01--2004 E ALSTOM

L31--789EN/01 4/8

Installation


Coupling the operating device, continued

Coupling

The table below gives the steps of the operating device coupling : Step 1

Action Sling the operating device using the lifting strap (1) like diagram. NOTE : Do not remove the roof (17) of the operating device before slinging.

2

Lift the operating device and make this level.

3

Approachthe operatingdevice in assembly position.

Comment 1

17

The final approach must be done with extreme caution.

4

Introduce the operating device shaft(13)into the cylinder(12).

13 12

5

D Put the washers (10) and nuts (14)inplace andtightento recommended torque. D

x 4

Remove the flexible strap. 10 14

H M16 18 daN.m

01--2004 E ALSTOM

L31--789EN/01 5/8

Installation


Low voltage electrical wiring

Process

Connectup theoperating device’s wires refer to thewiring diagramof thecircuit--breaker. If the circuit breaker is equipped with a marshalling cubicle, connect up the operating device’s wires to the marshalling cubicle.

Connecting up the contact densimeter cable

Connectthe wires fromthe electrical contactSF 6 densimeter (18) cable (19) to the operating mechanism terminal block, in accordance with the relative diagram.

18 19

01--2004 E ALSTOM

L31--789EN/01 6/8

Installation


Installing side panels of the operating device

Process

Reinstall the side panels (3) of the operating device using new nuts (2).

x 2 2 NYLSTOP M8 1,6 daN.m 3

01--2004 E ALSTOM

L31--789EN/01 7/8

Installation


Permanent heating system

Process

Switchonthepermanentheatingsystemof theoperatingdevice(inbothsummer and winter) to avoidcondensation, and the corrosion which mightresult from this.

DO NOT SUPPLY THE OPERATING MECHANISM MOTOR WITH CURRENT TO AVOID THE CLOSING SP RING BEING RELOADED. THE CIRCUIT BREAKER MUST NOT BE OPERATED AT A SF6 PRESSURE GAS LOWER THANTHE MINIMAL PRESSURE FORTHE INSULATION p me.

01--2004 E ALSTOM

L31--789EN/01 8/8

Installation

Calculation of the SF 6 gas filling pressure for using the pressure gauge (tool) Presentation

Introduction

SF6 pressure values, for the filling, must obligatorily be read on the pressure gauge 0--1 MPa (tooling). Pay no attention to indications given by the dial densimeter (MPa -- psi), it is not accurate enough for the filling.

Pressure gauge 0--1 MPa

Pressure units (reminder)

D The international unit pressure is the Pascal (Pa). 1 bar (14.503 psi) = 1,000 hPa 1 bar = 100 kPa 10 bar = 1 MPa

Symbols

IEC symbols for the apparatus technical characteristics. Symbol p re p ae p me

In this module

Designation Filling rated pressure for the insulation Alarm pressure for the insulation Minimal pressure for the insulation

This module contains the following topics : Topic Example of the filling pressure calculation Calculation of the filling pressure at site Values of the SF6 gas pressures in accordance with the temperature

08--2000 E ALSTOM

Page 2 3 4

L31--901EN/02 1/6

Installation

Calculation of the SF 6 gas filling pressure for using the pressure gauge (tool) Example of the filling pressure calculation

Example

Determination of the circuit--breaker’s filling pressure with SF6 gas.

Parameters

Values

p re

0.65 MPa (94.3 psi)

SF6 gas rated filling effective pressure for the insulation Ambient temperature Local atmospheric pressure

SF6 gas filling

5 C 93.2 kPa 

The table below gives the calculation steps of the pure SF6 filling pressure : Step 1

Action In the chart(page 5) “Values of the SF6 gas effective pressures in accordance with the temperature”, read the p re value on the t C = 5 row. Calculate the difference of the atmospheric pressure : 0.1013 -- 0.0932 Calculate the rated effective pressure p re : 0.603 + 0.0081 Filling is carried out to the calculated pressure, plus 0,01 MPa, that is to say : 0.6111 + 0.01

Result

0.603 MPa



2

3

4

08--2000 E ALSTOM

0.0081 MPa

0.6111 MPa Pure SF6 gas filling pressure 0.6211 MPa

L31--901EN/02 2/6

Installation

Calculation of the SF 6 gas filling pressure for using the pressure gauge (tool) Calculation of the filling pressure at site

Measurement

Write down the result measurement into the corresponding box : Measure the atmospheric pressure in MPa. A

,

Measure the ambient temperature in C. 

B

Calculation of the pure SF6 gas filling pressure

Transfer the values into the corresponding box and write down the result :

With the help of the table (page 5) “Values of the SF 6 gas effective pressures in accordance with the temperature”, determine the value “p re“ in accordance with the ambient temperature ( B) " C

p re

, Value of the reference atmospheric pressure in MPa D 0 , 1 0 1 Transfer the value of the local atmospheric pressure (A) " A --

,

Calculate the difference of the atmospheric pressure (D -- A) " E

,

Transfer the value (C) "

C+

Calculate the rated effective pressure (E + C) " F The filling with SF6 gas is carried out to the calculated pressure, plus 0.01 MPa,

E ALSTOM

,

+ 0, 0 1

(F + 0.01) " G

08--2000

,

,

L31--901EN/02 3/6

Installation

Calculation of the SF 6 gas filling pressure for using the pressure gauge (tool) Values of the SF 6 gas effective pressures in accordance with the temperature Rated effective pressure 0.75 MPa

Values of theSF 6 gas effective pressures (MPa) corrected in accordance with temperature for an atmospheric pressure of 101.3 kPa : t_C

p re

p ae

p me

t_C 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60

--25 --24 --23 --22 --21

0,584 0,588

0,500 0,503

0,477 0,480

0,591 0,595 0,599

0,506 0,509 0,512

0,483 0,486 0,489

--20 --19 --18 --17 --16 --15 --14 --13 --12 --11 --10 --9 --8 --7 --6 --5 --4 --3 --2 --1 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17

0,602 0,606 0,610

0,516 0,519 0,522

0,492 0,495 0,498

0,613 0,617 0,621

0,525 0,528 0,531

0,501 0,504 0,507

0,625 0,628 0,632

0,534 0,537 0,540

0,509 0,512 0,515

0,636 0,639 0,643

0,544 0,547 0,550

0,518 0,521 0,524

0,647 0,650 0,654

0,553 0,556 0,559

0,527 0,530 0,533

0,658 0,661 0,665

0,562 0,565 0,568

0,536 0,539 0,542

0,669 0,673 0,676

0,572 0,575 0,578

0,545 0,548 0,551

0,680 0,684 0,687

0,581 0,584 0,587

0,554 0,557 0,560

0,691 0,695 0,698

0,590 0,593 0,596

0,563 0,566 0,569

0,702 0,706 0,709

0,600 0,603 0,606

0,572 0,575 0,577

0,713 0,717

0,609 0,612

0,580 0,583

0,720 0,724 0,728

0,615 0,618 0,621

0,586 0,589 0,592

0,732 0,735 0,739

0,624 0,628 0,631

0,595 0,598 0,601

p re

p ae

p me

0,743 0,746

0,634 0,637

0,604 0,607

0,75 0,754 0,757

0,64 0,643 0,646

0,61 0,613 0,616

0,761 0,765 0,768

0,649 0,652 0,656

0,619 0,622 0,625

0,772 0,776 0,780

0,659 0,662 0,665

0,628 0,631 0,634

0,783 0,787 0,791

0,668 0,671 0,674

0,637 0,640 0,643

0,794 0,798 0,802

0,677 0,680 0,684

0,645 0,648 0,651

0,805 0,809 0,813

0,687 0,690 0,693

0,654 0,657 0,660

0,816 0,820 0,824

0,696 0,699 0,702

0,663 0,666 0,669

0,827 0,831 0,835

0,705 0,708 0,712

0,672 0,675 0,678

0,839 0,842 0,846

0,715 0,718 0,721

0,681 0,684 0,687

0,850 0,853 0,857

0,724 0,727 0,730

0,690 0,693 0,696

0,861 0,864 0,868

0,733 0,736 0,740

0,699 0,702 0,705

0,872 0,875

0,743 0,746

0,708 0,711

0,879 0,883 0,887

0,749 0,752 0,755

0,713 0,716 0,719

0,890 0,894 0,898

0,758 0,761 0,764

0,722 0,725 0,728


08--2000 E ALSTOM

L31--901EN/02 4/6

Installation

Calculation of the SF 6 gas filling pressure for using the pressure gauge (tool) Values of the SF 6 gas effective pressures in accordance with the temperature, continued Rated effective pressure 0.65 MPa

Values of theSF 6 gas effective pressures (MPa) corrected in accordance with temperature for an atmospheric pressure of 101.3 kPa : t_C --30 --29 --28 --27 --26 --25 --24 --23 --22 --21 --20 --19 --18 --17 --16 --15 --14 --13 --12 --11 --10 --9 --8 --7 --6 --5 --4 --3 --2 --1 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15

08--2000 E ALSTOM

p re

p ae

p me

t_C

0,492 0,495

0,409 0,412

0,387 0,389

0,498 0,501 0,505

0,415 0,417 0,420

0,391 0,394 0,396

0,508 0,511 0,514

0,422 0,425 0,428

0,399 0,401 0,404

0,517 0,520 0,524

0,430 0,433 0,435

0,406 0,409 0,411

0,527 0,530 0,533

0,438 0,441 0,443

0,414 0,416 0,419

0,536 0,539 0,543

0,446 0,449 0,451

0,421 0,424 0,426

0,546 0,549 0,552

0,454 0,456 0,459

0,429 0,431 0,433

0,555 0,558 0,562

0,462 0,464 0,467

0,436 0,438 0,441

0,565 0,568 0,571

0,469 0,472 0,475

0,443 0,446 0,448

0,574 0,577 0,580

0,477 0,480 0,483

0,451 0,453 0,456

0,584 0,587 0,590

0,485 0,488 0,490

0,458 0,461 0,463

16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47

0,593 0,596 0,599

0,493 0,496 0,498

0,466 0,468 0,470

0,603 0,606

0,501 0,503

0,473 0,475

0,609 0,612 0,615

0,506 0,509 0,511

0,478 0,480 0,483

0,618 0,622 0,625

0,514 0,516 0,519

0,485 0,488 0,490

0,628 0,631 0,634

0,522 0,524 0,527

0,493 0,495 0,498

48 49 50 51 52 53 54 55 56 57 58 59 60

p re

p ae

p me

0,637 0,641

0,530 0,532

0,500 0,503

0,644 0,647 0,65

0,535 0,537 0,54

0,505 0,508 0,51

0,653 0,656 0,659

0,543 0,545 0,548

0,512 0,515 0,517

0,663 0,666 0,669

0,550 0,553 0,556

0,520 0,522 0,525

0,672 0,675 0,678

0,558 0,561 0,564

0,527 0,530 0,532

0,682 0,685 0,688

0,566 0,569 0,571

0,535 0,537 0,540

0,691 0,694 0,697

0,574 0,577 0,579

0,542 0,545 0,547

0,701 0,704 0,707

0,582 0,584 0,587

0,550 0,552 0,554

0,710 0,713 0,716

0,590 0,592 0,595

0,557 0,559 0,562

0,720 0,723 0,726

0,597 0,600 0,603

0,564 0,567 0,569

0,729 0,732 0,735

0,605 0,608 0,611

0,572 0,574 0,577

0,738 0,742 0,745

0,613 0,616 0,618

0,579 0,582 0,584

0,748 0,751

0,621 0,624

0,587 0,589

0,754 0,757 0,761

0,626 0,629 0,631

0,591 0,594 0,596

0,764 0,767 0,770

0,634 0,637 0,639

0,599 0,601 0,604

0,773 0,776

0,642 0,645

0,606 0,609

L31--901EN/02 5/6

Installation

Calculation of the SF 6 gas filling pressure for using the pressure gauge (tool) This page is intentionally blank.

08--2000 E ALSTOM

L31--901EN/02 6/6

Installation

Filling with SF6 gas Presentation

Warning

DUE TO RISK OF DAMAGE TO CERAMIC ENVELOPES DURING TRANSPORTATION, PEOPLE PRESENT AT THE GAS FILLING OPERATION SHOULD SHELTER THEMSELVES OR STAY AT A MINIMUM PROTECTION DISTANCE (ABOUT 50 m).

Necessary equipment List of the necessary ALSTOM equipment and tools for the filling with SF6 and tools gas : Mark

Diagram

Designation

Number

2

Filling tool

1

8

Pressure reducer

1

6

SF6 gas bottle(s)

*

14

Gauge 0--1 MPa

1

* depending on the apparatus.

In this module

This module contains the following topics : Topic Filling with SF6 gas Confirm the pressure Checking pressure Checking gas--tightness Moisture content of SF6 gas in circuit--breaker

07--2002 E ALSTOM

Page 2 3 4 6 7

L32--007EN/01 1/8

Installation

Filling with SF6 gas Filling with SF6 gas Filling pressure calculation

Calculate the SF6 gas filling pressure in accordance with the temperature and the local atmospheric pressure. Filling is carried out to calculated pressure plus 0.01 MPa.

See the module “ SF6 gas monitoring” (Calculation of the filling pressure at site).

Process

The table below gives the steps of the filling with SF6 gas operation : 7 11 Open

SF6 Step 1

2 3

07--2002 E ALSTOM

9

Closed

Action Comment Open the SF6 gas bottle tap (7) Close the tap (7) from time to and adjust gas output by acting on time to check pressure on the the cock (9) of the pressure reduc- gauge (11). er (reduced flow rate). Start filling again until the required pressure is reached. Close in this order : the tap (7), then the cock (9).

L32--007EN/01 2/8

Installation

Filling with SF6 gas Confirm the pressure

Process

The table below gives the confirmation operation steps of the filling pressure with SF6 gas : Step 1

2

Action Disconnect the tube (10) -- of the pressure reducer -- from the filling tool (2). NOTE : Keep the unconnected end of the tube (10) higher than the other end, to stop the SF6 gas which it contains from escaping and to prevent moisture entering.

Comment/Diagram

2 10

S Connect the tube (15) -- of the gauge 0--1 MPa (14) -- to the filling tool (2).

When the required pressure is confirmed, remove the gauge (14) and and store it away from humidity. S

2

15 14

3

Remove the filling tool (2) and refit the plug (17) (4 daN.m) 17

2

07--2002 E ALSTOM

L32--007EN/01 3/8

Installation

Filling with SF6 gas Checking pressure

Principle

Having allowed the temperature to remain steady for at least 12 hours after filling, it is necessary to check and definitively adjust the pressure to its corrected value -- defined according to both ambient temperature and atmospheric pressure.

Preparation

The table below gives the preparation steps before checking pressure : Step 1

Action S Remove the plug (17) and install the filling tool (2). S

Diagram

Unscrew the valve--cap (3). 2

17

2

3

S Connect the tube (15) -- of the gauge 0--1 MPa (14) -- to the filling tool (2).

2

15 14


07--2002 E ALSTOM

L32--007EN/01 4/8

Installation

Filling with SF6 gas Checking pressure , continued

Decision table

The table below gives the process depending the pressure measured :

14 16

If the pressure measured is ... correct too high

too low

End of control

Action End of control Adjust the pressure by means of valve (16) on the gauge (14) to reach the required corrected pressure. Top--up with SF6 gas If the pressure adjustment Action is ... End of control  0.05 MPa Proceed to a  0.05 MPa new inspection after a stabilization period of 2--3 hours.

The table below gives the end steps of the checking pressure : Step 1

Disconnect 0--1 MPa.

Action the gauge

Diagram (14) 14

2

S Remove the filling tool (2) and re--install the plug (17), applying a tightening torque of 4 daN.m; leak--tightness is only guaranteed if this condition is respected.

Screw the valve--cap (3) on the filling tool (2).

17

S

2 3

07--2002 E ALSTOM

L32--007EN/01 5/8

Installation

Filling with SF6 gas Checking gas--tightness

Necessary ALSTOM tools

List of the ALSTOM tools necessary for the tightness inspection : Mark

12

Process

Diagram

Designation

Number

Leak detector (optional)

1

Make sure that the plug (17) is perfectly leak--tight using the leak detector (12).

12 17

07--2002 E ALSTOM

L32--007EN/01 6/8

Installation

Filling with SF6 gas Moisture content of SF 6 gas in circuit--breaker Principle

07--2002 E ALSTOM

This measurement is not required, the equipment being provided with molecular sieves in sufficient quantity to give a dew point of  0C (32F) for anambient temperature of 20C (68F), this applies for a unit filled to its nominal pressure for 2 or 3 months.

L32--007EN/01 7/8

Installation

Filling with SF6 gas This page is intentionally blank.

07--2002 E ALSTOM

L32--007EN/01 8/8

Commissioning


Presentation

Introduction

After installation of the bay, completion of all earth circuit and electrical connections, it is necessary to perform certain pre--commissioning inspections. These inspections should be performed with the apparatus ready to be commissioned (energized), in other words D LV electrical circuits conforming, in voltage andtype, with the low--voltage diagrams and rating plate of the apparatus. D

SF 6 envelopes at rated SF 6 pressure.

NOTE : Rated pressure, pressure of equipment after SF 6 gas filling. D Flexible connections linking circuit--breaker to busbar installed.

Caution

DURING OPERATIONS REQUIRED AS PART OF INSPECTION PROGRAMME PRIOR TO COMMISSIONING, ALL POSSIBLE SAFETY PRECAUTIONS SHOULD BE TAKEN TO PROTECT P ERSONNEL WORKING ON THE EQUIPMENT.

In this module

This module contains the following checking inspections : Inspections SF 6 gas Operating device Test operations Information concerning the stop ring of the “fusible”pin Removing the stop ring “site”

04--2004 E ALSTOM

Page 2 3 4 5 6

L34--004EN/04 1/6

Commissioning


SF6 gas Reminder

SF 6 envelopes are at rated pressure following the SF 6 gas filling operation.

Parameters

Take note of parameters below : D site altitude, in meters, D

atmospheric pressure of site in kPa,

D site temperature

Checking SF6 gas

in C. 

SF 6 pressure values must obligatorily be read on the pressure inspection gauge (tooling). Pay no attention to indications given by the dial densimeter on the filling control block (where applicable) ; it is not accurate enough for this inspection. See the module “Calculation of theSF6 gas filling pressure to using the pressure gauge(tool)”. The table below gives the steps of checking : Step 1

2

SF6 gas humidity level

The SF 6 humiditylevel need notbe known as the equipmentis fitted withmolecular sieves in sufficient numbers to give a dew point lower than, or equal to, 0 C atan ambient temperature of 20 C, for anapparatus filledto its rated pressure for 2 or 3 months. 

Checking tightness of assemblages under SF6 pressure

Action Comment Measure SF6 gas pressure by Follow the instructions given in means of the pressure inspection module ”Filling with SF 6 gas”. gauge (tooling) Correct pressure found. Follow the instructions given in module ”Calculation of the SF 6 gas fillingpressure to usingthe pressure gauge (tool)”.



Each on site assemblage of parts subjected to SF 6 gas requires seals. The quality of these assemblages must be checked. This inspection shouldbe undertakenonce all the filling and pressure control operations are finished. Execute this checking according to instructions given in module ”SF6 gas monitoring”.

04--2004 E ALSTOM

L34--004EN/04 2/6

Commissioning


Operating device

Measurements

Note the supply voltage of motors on the operating mechanism terminals.

Inspection

Check that the following items are working correctly : -- heating, -- connections on terminals (no excessive tightening).

04--2004 E ALSTOM

L34--004EN/04 3/6

Commissioning


Test operations

Test operations

D Theconnectionof auxiliarycircuits is sufficiently advancedtoallowremote

controls to be used. D

Perform 5 CLOSING -- OPENING cycles electrically, by remote control.

OPERATION AUTHORIZED ONLY IF THE SF 6 PRESSURE GAS IS GREATER THAN THE MINIMAL PRE SSURE FOR THE INSULATION p me.

Caution

VERY IMPORTANT

DUE TO RISK OF DAMAGE TO CERAMIC ENVELOPES DURING TRANSPORTATION, PEOP LE PRESE NT AT THE TEST OPERATIONS SHOULD SHELTER THEMSELVES OR STAY AT A MINIMUM PROTECTION DIS TANCE (ABOUT 50 m).

AFTER THE FIRST TEST OPERATION, IT IS FORBIDDEN TO REMOVE THE OPERATING MECHANISM WITHOUT USING THE BLOCKING TOOL (4). NOTE : To remove the operating mechanism, see in “Maintenance”, the module “Replacing the operating device FK3--1”.

4

04--2004 E ALSTOM

L34--004EN/04 4/6

Commissioning


Information concerning the stop ring of the “fusible” pin

Process

Thetable belowindicates the procedure -- afterthefirstoperationofthe circuit breaker -- according to the type of stop ring :

Case

Stop ring type

Direction

None

None

None

See : Removing the stop ring “site”

04--2004 E ALSTOM

L34--004EN/04 5/6

Commissioning


Removing the stop ring “site”

Process

The table below gives the steps of removing the stop ring “site” Step 1

Action Switch--off the supply circuit of the reloading motor.

2

Activate theclosing handleand theopeninghandlelike below : 1 -- Close 2 -- Open

3

Comment / Diagram

Open

Check that the operating mechanism’s optical signalization shows the symbols opposite : Closing spring Released

04--2004 E ALSTOM

4

Removethestopring “site”and the broken part of the “fusible” pin.

5

Switch--on the motor supply The motor starts--up and reloads circuit. the closing spring.

L34--004EN/04 6/6

Maintenance

Maintenance plan

Presentation

Introduction

GL circuit--breakers use pure SF 6 gas as an arc quenching medium (or a SF 6+CF 4 gas mixture) and require only a reduced amount of maintenance.

In this module

This module contains the following topics : Topic Maintenance plan Maintenance operations Detail of maintenance operations

06--2004 E

ALSTOM

Page 2 3 4

L51--003EN/03 1/6

Maintenance

Maintenance plan

Maintenance plan

Maintenance frequency

Under normal operatingconditions, the maintenanceplan may be defined as follows :

Type of examination

Frequency

Comment

Once or twice a year

Itis advisableto performat least 2 CO duty cycles per year, when apparatus are scarcely used, in order to check that the circuit--breaker and associated control circuits are working properly.

Inspections

Every five years

This necessitates circuit--breaker shutdown. It is not necessary, however to dismantle interrupting chambers and other sub--assemblies.

Overhaul

Perform when one of the following criteria is reached : life time D operating  20 years

Maintenance visits

06--2004 E

ALSTOM

However, it is recommended to proceed with inspection of the pole or circuit--breaker used the most, then to adapt the maintenance programme D number of mechanical for the other breakers cycles  3,000 depending on the results D electric wear limit observed.

L51--003EN/03 2/6

Maintenance

Maintenance plan

Maintenance operations

Guide

The table below is a guide of the operations to be carried out at each maintenance stage : MAINTENANCE VISITS (1 or 2 times a year) INSPECTION (every 5 years) OVERHAUL (OPERATING TIME : 20 years) OVERHAUL (MECHANICAL OPE RATIONS : 3 000 cycles) OVERHAUL (ELECTRICAL WEAR : see “Electrical wear limits”) J J J J J Operation counter reading. J J J J J J

J J J

J

J J J J 

Overall inspection : appearance (corrosion, paintwork, signs of overheating). Check operation of permanent heating. Check condition J J of air vents. If the circuit--breaker is fitted with an SF 6 dial densimeter or a pressure gauge, check SF 6 pressure (or SF 6+CF 4 gas mixture). It is advisable to perform at least 2 CO duty cycles per year, when apparatus are scarcely used, in order to check thatcircuit--breakerandassociatedcontrolcircuits are working properly. Check SF 6 densimeter thresholds. Then adjust pressure to its rated value. Check tightening of parts not subjected to pressure J (frame -- deck -- cubicle).

J J J J J J

Check tightening of low voltage terminals ( 6 months after commissioning). Check relay operation. Change door seal, side panels seal and roof seal.

J

J J J J Measureoperatingtimes forpoles andauxiliarycontacts.

Carry out operations at recommended duties and rated voltage. J J Change (or recondition) interrupting chambers.

J J J J

06--2004 E

ALSTOM

L51--003EN/03 3/6

Maintenance

Maintenance plan

Detail of maintenance operations

Caution

DURING MAINTENANCE OPERATIONS ALL POSSIBLE SAFETY PRECAUTIONS SHOULD BE TAKEN TO PROTECT PERSONNEL WORKING ON THE EQUIPMENT.

General condition of the apparatus

The apparatus should be subjected to visual inspection. If patches of corrosion are found begin reconditioning of the affected parts. The table belowgives the process respecting surface finish and protection :

Support

Galvanized steel

Inspection

Oxidized parts

Action D Thorough brushing of oxidized parts. D

Degreasing with solvent.

D Application

of a coat of zinc

paint. Thorough solvent. D

Light scratches Painted galvanized steel or painted aluminium alloy

degreasing

with

D Application of a coat of lacquer

using a brush. Scouring of paint surface with emery paper 400. D

Thorough solvent. D

Deep scratches or flaking

degreasing

with

D Application of

a coat of primer, then drying for 24 h. D Application of a coat of polyurethane lacquer using a brush.

Products used : D RUMCOAT EEVA primer by DERIVERY ref. 333103. D P olyurethane

lacquer 780 by DERIVERY, ref. depending on color of

equipment. Continued on next page.

06--2004 E

ALSTOM

L51--003EN/03 4/6

Maintenance

Maintenance plan

Detail of maintenance operations, continued

SF6 pressure gas

For a circuit--breakerequipped with a ”dial--type”S F6 gas densimeter, check the position of the needle.

Needle position

Colored area

Direction

GREEN

None

YELLOW

RED

P erforma topping--up operation.

Abnormally low density, find the origin of the leak and contact ALSTOM T&D S.A. After--sales Service.

NOTE : If the intersection is in either the yellow or red zone, without any particular indication from the electrical contact densimeter, verify the concordance of different information sources to find the defective element and then replace it.

Operating device

Operation counter

Air--vents should be clean, free of dust and unobstructed. If necessary clean using a solvent. Makesurethatthe permanentresistors areworkingproperlyby checkingthat these give off heat and thattherearenooverheatingmarks (a zonenotorious for this). For thermally controlled resistors, check that energizing and de--energizing takes place correctly at voltage supply terminals by means of a thermostat (recommended thermostat temperature : +5C). If necessary, change resistors found to be defective.

Read indications given by the counter(s) and note these on the inspection sheet ”Maintenance visits”. The number of circuit--breaker operations recorded influences future maintenance operations. Continued on next page.

06--2004 E

ALSTOM

L51--003EN/03 5/6

Maintenance

Maintenance plan

Detail of maintenance operations, continued

Electrical densimeter thresholds

Check the electrical contact SF 6 densimeter thresholds. If the values found are outside required tolerances replace the densimeter.

Tightening of mountings

Check and adjust, with a torque wrench, the tightening torques of screws on sub--assemblies not subjected to gas pressure. The tightening torques are given in paragraph ”Tightening torques”.

Relay operation

Check relayoperationbyexecutingthe followingcircuit--breakersequences : -- closing lock--out, -- automatic opening, -- anti--pumping.

Tightening LV terminals

With the electric cubicle out of service, check that the connectors and tips of conductors are tightened correctly and check the torque of connection mountings. Tool used : 4 mm diameter screwdriver , for terminals ofthe ”Entrelec”type (for example).

CAUTION : SCREWS OVER--TIGHTENED.

ON

TERMINALS

MUST

NOT

BE

Insulating envelopes Checkthe conditionofinsulatingenvelopes, theseshouldbefree fromimpact marks, splintering, cracks, dust deposits, pollution etc... If necessary, clean these using a dry rag. If anomalies are found contact : ALSTOM T&DSA, After--sales Servicein order to changethedefectiveparts.

Interrupting chambers

06--2004 E

ALSTOM

Check the condition of interrupting chambers. This operation necessitates complete dismantling of the interrupting chamber to gain access to the elements to be inspected and should obligatorily be performed by ALSTOM T&D SA, After--sales S ervice -- to be contacted before all operations of this kind, preferably at the maintenance planning stage.

L51--003EN/03 6/6

Maintenance



Estimation

Electrical wear can be determined by means of the curve below. This curve corresponds with the formula : 2

= 16,000 kA2 (*) N = number of interruptions on value I. πNI

Example : it is possible to perform 40 interruptions on a current of 20 kA. (*) Normal guarantee. In certain special operation conditions, other values may be guaranteed. Diagram

I (kA)

40 20 10

2

10

20 30

50

100

500

1000

3000

Number of interruptions

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L51--051EN/01 1/2

Maintenance

Electrical wear limits This page is intentionally blank.

11--1999 E ALSTOM

L51--051EN/01 2/2

Maintenance


Presentation

Necessary tools

List of the ALSTOM tools necessary for the operation : Mark

(11)

(17)

Diagram

Designation

Reference

Number

Gauge 0--1 MPa

--02842117 + N55161602

1

Pressure reducer

--02557208 + N55161601

1

Test lamp

--02861501

1

Electrical contact densimeter threshold inspection V0003731001 case

In this module

This module contains the following topics : Topic Contents of the densimeter threshold inspection case Preparing the densimeter Linking the densimeter on the control tool Densimeter threshold inspection Replacing the densimeter Putting away the control tool

06--2003 E ALSTOM

1

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L51--107EN/01 1/8

Maintenance


Contents of the densimeter threshold inspection case

Parts table

The table below describes the parts of the densimeter threshold inspection case : Mark (3)

Component Case

(4)

Threshold inspection tank

(5)

Connection valve block

(6)

Linking pipe

(7)

Set of seals

Information Put the tool Connection : densimeter - standard gauge -- SF 6 gas bottle. Supports the densimeter during the threshold inspection. Connection : connection valve block -- threshold inspection tank. Seals used for the connection valve block and replacing the densimeters of the three poles.

5

4 6

3

7

06--2003 E ALSTOM

L51--107EN/01 2/8

Maintenance


Preparing the densimeter

Introduction

The densimeter is located at the base of the pole of the circuit--breaker, and is joined to the SF6 (or SF6+CF4) gas volume of the circuit--breaker. To realize the electrical contact densimeter threshold inspection, it is imperative to isolate the densimeter volume from the pole SF6 (or SF6+CF4) gas volume.

Process

The table below gives the process to preparing the densimeter : Step 1

2

Action Remove the densimeter (1), held in place by screws (8), on thehousingcover (2) of the circuit--breaker.

Remove the protective plates (9) and (10), of the connection valve block (5), held in place by screws (14) and (15).

Diagram

x3 8 H M6--20 0,7 daN.m

2

x3

9

1

5 14

x3 H M6--20 0,7 daN.m

15 H M6--20 0,7 daN.m

10 3

Install the seal (16) on the connection valve block (5).

16 5

4

5

06--2003 E ALSTOM

Install the connection valve block (5) on the housing cover (2), of the circuit-breaker, using screws (8). Install the densimeter (1) on the connection valve block (5) using screws (15). NOTE : Before installing, check the presence of seals on the densimeter.

5

2

x3 8 H M6--20

15 1

H M6--20

L51--107EN/01 3/8

Maintenance


Linking the densimeter on the control tool

Process

The table below gives the process to link the densimeter on the control tool : Step 1 2 3 4

5

6

Action Check that the “REGULATION” knurl knob (20) of the threshold inspection tank (4) is in “valve closed” position (unscrewed). Connect the pipe (12) of the gauge (11) on the “PRESSURE GAUGE” valve of the threshold inspection tank (4). Connect the supplied pipe (6) on the “DENSIMETER” valve of the threshold inspection tank (4). Briefly open the SF6 gas bottle tap (21) and the cock (22) of the pressure reducer to eliminate any air inside the pipe (23) (approx. 20 s at low flow--rate). Connect the pipe (23) on the“SUPPLY” valve of the threshold inspection tank (4). Briefly open the SF6 gas bottle tap (21) and the cock (22) of the pressure reducer to eliminate any air inside the pipe (6) (approx. 20 s at low flow--rate). NOTE : Keep the end of the tube (6) in high position to keep the SF6 gas which it contains and to prevent damp air from entering. Connect the pipe (6) on the valve (24) of the connection valve block (5). 12 20

11

20

4

OPEN

CLOSE

(leak)

21 23

24 6

5

SF6 22 6

06--2003 E ALSTOM

L51--107EN/01 4/8

Maintenance


Densimeter threshold inspection

SF6 gas pressure adjustment

The table below gives the steps of SF 6 gas pressure adjustment of the connection valve block (5) : Step 1

2 3

Action Open the SF6 gas bottle tap (21) and adjust gas output by acting on the cock (22) of the pressure reducer (reduced flow rate). Close the tap (21) from time to time to check pressure on the gauge (11).

Comment

See the module “ Calculation of the SF 6 gas filling pressure to using the pressure gauge (tool)”.

Start filling again until the required pressure is reached. Close in this order : the tap (21), then the cock (22). 5

11

21

Open

SF6

22

Closed


06--2003 E ALSTOM

L51--107EN/01 5/8

Maintenance


Densimeter threshold inspection , continued

Testing

The table below gives the steps of densimeter testing : Step 1

2

3

Action Connect a test lamp to the “Alarm pressure for the insulation” p ae densimeter threshold. Calculate the effective pressure at which the “Alarm pressure for the insulation” p ae contact switches over -- corrected in keeping with temperature and local atmospheric pressure. D Create a leak by screwing the “REGULATION” knurl knob (20) of the threshold inspection assembly (4), making sure that the contact switches over at the previously calculated value. D Proceed in the same way to check the contact of “Minimal pressure for the insulation” p me.

Comment/Diagram Connection to the terminal block of the operating mechanism in accordance with the electrical diagram. Value p ae : see technical characteristics). See the module “Calculation of the SF6 gas filling pressure to using the pressure gauge (tool)”.

20 4 20

OPEN

CLOSE

(leak)

If one of the thresholds does not comply with the specified value, replace the densimeter.

06--2003 E ALSTOM

L51--107EN/01 6/8

Maintenance


Replacing the densimeter

Process

The table below gives the process to replace the densimeter : Step 1

2

Action Disconnect the pipe (6) from the valve (24) of the connection valve block (5). Screw the valve--cap (25) on the valve (24). NOTE : Keep the end of the tube (6) in high position to keep the SF6 gas which it contains and to prevent damp air from entering. Remove the densimeter (1), held in place by screws (15), on the connection valve block (5).

Diagram 24

6 25 5

5 1

x3 15 H M6--20

3

4

Remove the connection valve block (5), held inplace by screws (8), on the housing cover (2) of the circuit-breaker. NOTE : If the connection valve block (5) is any more used, see the next paragraph “Putting away the control tool”. Install new seals (26) and (27) on the densimeter (1), referring to “Preparing and installing static seals” in ”Erection general procedures”. Install thedensimeter (1) on the housing cover (2), of the circuit--breaker, using screws (8).

2

x3

5

8 H M6--20

2 27 26 1

06--2003 E ALSTOM

x3 8 H M6--20 0,7 daN.m

L51--107EN/01 7/8

Maintenance

Electrical Electrical contact densimeter threshold inspection inspection

Putting away the control tool

Process

The table below gives the steps of putting away the control tool : Step 1

2

Action Take ake prec precau autio tions ns to remo remove ve the seal (16) from the connection valve block (5) and put put it aw away ay into into the the “SET “SET OF SEALS” box of the densimeter threshold inspection case. Instal Installl the protec protective tive plates plates (9) and (10) on the connection valve block (5), using screws (14) and (15). Put aw away ay the conne connectio ction n valv valve e bloc block k (5) (5) into into the the densime simete terr thr thresho shold inspection case.

Diagram 16 5

x3

9 5

14

x3 H M6--20 0,7 daN.m daN.m

15 H M6--20 0,7 daN.m daN.m

10 3

Disconnect the the pipe (6) from the “DENSIMETE “DENSIMETER” R” val valve of the the thr thresho shold inspection tank (4) and put it away into the t he densimeter densimeter threshold inspection case.

6

4 4

Disco isconn nne ect the the pipe pipe (12) (12) from the the “PRESSURE GAUGE” valve of the the threshol threshold d inspectio inspection n tank (4).

11

12

4 5

Disco isconn nne ect the the pipe pipe (23) (23) from from the “SUPPL “SUPPLY” Y” valve valve of the thresh threshol old d inspe inspectio ction n tank (4). Put Put aw away ay the the thre thresh shol old d inspection tank (4) into the densim simeter ter thr thresho shold inspection case.

4

SF6

06--2003 E ALSTOM

23

L51--107EN/ L51--107EN/01 01 8/8

Maintenance


Presentation

Warning

BEFORE BEFORE ALL INTERVEN INTERVENTION TION ON THE OPERA OPERATING TING DEVICE, DEVICE, MAKE MAKE SURE SURE THAT THAT THE CIRCU CIRCUITIT--BREAK -BREAKER ER IS OPEN OPEN AND AND ITS POSITIO POSITION N INDIINDICATOR IS IN THE POSITION BELOW.



NEVE NEVER R WORK WORK THE THE OPERA OPERATIN TING G DEVIC DEVICE E WHEN WHEN THIS THIS IS NOT NOT COUPL COUPLED ED TO THE CIRCUIT--BREAKER.

In this module

This module contains the following following topics : Topic Positions of optical signalization Safety measures Preparing the operating device Replacing an opening or closing electro-- ma magnet Resumption of service Lubrication Cleaning the windows

10--1999 E ALSTOM

Page 2 3 4 5 6 8 9

L51--302EN/01 L51--302EN/01 1/10

Maintenance


Positions Positions of optical signalization

“A” position Circuit-breaker Open


Circuit-breaker Closed


Circuit-breaker Closed


Circuit-breaker Open


“B” position

“C” position

“D” position

10--1999 E ALSTOM

L51--302EN/01 L51--302EN/01 2/10

Maintenance


Safety measures

CircuitCircuit --breaker -b reaker general preparing

Thetablebelow Thetablebelow gives gives thestepsto prep prepar are e thecircui thecircuitt--bre -break aker er to work work safel safely y : Step 1

Action Comment Isol Isolat ate e the the circ circui uitt--brea -breake kerr from from Shut Shut down down the circuitcircuit--breaker -breaker,, the network. de--energize de--energize and earth it. it . Switc Switchh--off the supp supply ly circu circuit it of the reloading motor. Check the SF6 pres pressu sure re gas. gas. Make Make sure sure that that the SF SF 6 pressure gas is ∫ pme. Below Below this lev level, el, no mecha mechanic nical al operating is allowed.

2 3

Release the springs

The table below below gives gives the procedure procedure to release release the closing closing spring and and the opening opening spring depending the circuit--breaker circuit--breaker state : If the circuit--breaker circuit--breaker position is ...

Closed

Action

In the operating device, activate the opening handle and the closing handle like like below below : 1 -- Open 2 -- Close 3 -- Open Activate the closing handle handle and the opening opening handle like like below : 1 -- Close

Open

Check the optical signalization

Check that the operating mechanism’s optical signalization shows the symbols bols below below :


10--1999 E ALSTOM

2 -- Open


L51--302EN/01 L51--302EN/01 3/10

Maintenance



Introduction

In order to perform certain maintenance operations inside the operating device it is necessary to remove some cabinet parts.

Removing side panels

The table below gives the steps of side panels removing : Step 1


Diagram

x 2 2 NYLSTOP M8

Removing the roof plate

2

Take hold of the left side panel (3) from underneath, pull slightly towards the outside, then downwards to remove it.

3

Proceed in the same way for the right side panel.

3

3

Take the roof plate (4) from the operating device by removing the nuts (8). NOTE : The spacers (7), washers (6) and screws (5) stay on the roof plate.

x 4 5 4

6 7 8 H M6--60 0,7 daN.m

10--1999 E ALSTOM

L51--302EN/01 4/10

Maintenance


Replacing an opening or closing electro --magnet

Process

10--1999 E ALSTOM

The table below gives the steps of replacing an opening or closing electro-magnet : Step 1

Action Disconnect the supply wires from the coil (9).

Diagram

2

Extract the blade spring (10) by pressing outwards on the rivet with a finger.

3

Remove the core (11).

10

4

Remove the faulty coilandreplace it by a new one carrying the same reference.

11

5

Reinstall the core (11).

6

Reinstall the blade spring (10).

7

Connect supply wires to the new coil (9).

10

9

9

L51--302EN/01 5/10

Maintenance


Resumption of service

Installing the roof

Install the roof plate (4) of the operating device (1) using the screws (5), washers (6), spacers (7) and nuts (8).

x 4 5 4

6 7 8

1

H M6--60 0,7 daN.m

Installing the side panels

Insert the side panel (3) under the edge of the roof plate (4). Press it down to insert the mounting screws and fasten using new nuts (2). 4 3

x 2 2

NYLSTOP M8 Continued on next page.

10--1999 E ALSTOM

L51--302EN/01 6/10

Maintenance


Resumption of service , continued

Energizing

The table below gives the resumption of service steps of the circuit--breaker pole : Step 1 2


Action Comment Re-- energize the closing and opening circuits. Switch--on the motor supply cir- The motor starts--up and recuit. loads the closing spring.

Check that the operating mechanism’s optical signalization shows the symbols below :


Conclusion

10--1999 E ALSTOM


The circuit--breaker is ready for normal use.

L51--302EN/01 7/10

Maintenance


Lubrication

Principle

No future lubrication will be necessary. The bearings and rollers have been lubricated in our workshops with special grease : ASEOL SYLITEA 4--018 This grease can easily endure very low temperatures and has an excellent resistance to ageing. So that its qualities are not modifiedduring use,itisprohibited to : D Mix

this grease with any other lubricant. D Lubricate later with any other oil. D Spray

parts of the apparatus with a protective liquid against corrosion or with any kind of lubricating oil. Mixture with other lubricants can cause the layer of grease to become too hard.

10--1999 E ALSTOM

L51--302EN/01 8/10

Maintenance


Cleaning the windows

Recommended product

To clean the windows, use exclusively soapy water.

DO NOT USE SCOURING PAD.

10--1999 E ALSTOM

L51--302EN/01 9/10

Maintenance

Intervention on the operating device This page is intentionally blank.

10--1999 E ALSTOM

L51--302EN/01 10/10

Maintenance


Presentation

Warning

BEFORE ALL INTERVENTION ON THE OPERATING DEVICE, MAKE SURE THAT THE CIRCUIT--BREAKER IS OPEN AND ITS POSITION INDICATOR IS IN THE P OSITION BELOW.



Lifting equipment

Provide an appropriate lifting equipment (130 daN).

Necessary tools

List of the ALSTOM tools necessary for removing the operating device : Mark

Replacing steps

Designation

Number

(1)

Lifting strap

1

(4)

BLOCKING TOOL

1

Replacing the operating device must be done in several steps : Step A B C D E F G H

04--2004 E ALSTOM

Diagram

Topic Safety measures Deflating the pole Holding of the coupling cylinder Preparing the operating device Disconnecting the low voltage cables Removing the operating device Installing the new operating device Reinflating the pole

Page 2 4 5 7 8 9 11 12

L51--800EN/04 1/12

Maintenance


Safety measures

Circuit--breaker general preparing

The tablebelowgives the steps to preparethe circuit--breakerto worksafely : Step 1

Action Comment Isolatethecircuit--breakerfrom Shut down the circuit--breaker, the network. de--energize and earth it. Switch--off the supply circuit of the reloading motor. Check the S F6 pressure gas. Make sure that the SF 6 pressure gas is  p me (P2). Belowthis level,no mechanical operating is allowed.

2 3

Release the springs

The table below gives the procedure to release the closing spring and the opening spring depending the circuit--breaker state :

NOTE : For the manual discharge of closing spring, see in annexes, the module “Manual operations” 48.020.181E.

If the circuit--breaker position is ...

Closed

Action

In the operating device, activate the opening handle and the closing handle like below : 1 -- Open

2 -- Close 3 -- Open

Open

Activate the closing handle and the opening handle like below : 1 -- Close

2 -- Open


04--2004 E ALSTOM

L51--800EN/04 2/12

Maintenance


Safety measures, continued


Checkthatthe operatingdevice’s opticalsignalizationshows the symbols below :


04--2004 E ALSTOM


L51--800EN/04 3/12

Maintenance


Deflating the pole

Process

Deflate the pole, using gas recovery chart. DEFLATE THE CIRCUIT--BREAKER SF 6 PRESSURE GAS TO 0.3 bar AT 20C (1,013 hPa) REFE RRING TO THE MODULE IN ANNEXES “Instructions on thehandling of used SF6 gas and decomposition products”.

04--2004 E ALSTOM

L51--800EN/04 4/12

Maintenance


Holding of the coupling cylinder

Optical signalizations Check the position of operating device optical signalization :


Stop ring


If the pole is equipped with a stop ring (5) of the “fusible”pin (9), release the screw(6) and move the stop ring(5) in order to reach the positioning hole of the blocking tool (4). NOTE : Two possible cases (A or B). 9

5

6

A

4 9

5

B

6 Continued on next page.

04--2004 E ALSTOM

L51--800EN/04 5/12

Maintenance


Holding of the coupling cylinder

Blocking tool

Screw the blocking tool (4) into the free hole allowed on the cylinder (12).

Thisblockingtoolis removedonceremovingandcouplingof theoperating deviceis finished.

12

4

04--2004 E ALSTOM

L51--800EN/04 6/12

Maintenance



Side panel

The table below gives the steps of side panel removing : Step 1


Diagram

x 2 2 NYLSTOP M8

2

04--2004 E ALSTOM

Take hold of the left side panel (3) from underneath, pull slightlytowards the outside, then downwards toremove it. Proceed in the same way for the right side panel.

3

3

L51--800EN/04 7/12

Maintenance


Disconnecting the low voltage cables

Disconnecting the contact densimeter cable

Disconnect the wires of theelectrical contactS F 6 densimeter (18) cable (19) from the operating device terminal block.

18 19

L.V. cables

04--2004 E ALSTOM

Disconnect all the L.V. cables from the operating device terminal block.

L51--800EN/04 8/12

Maintenance


Removing the operating device

Process

The table below gives the steps of removing the operating device : Step 1

2

Action Sling the operating device using a lifting strap (1) like diagram. NOTE : Do not remove the roof (17) of the operating device before slinging.

Diagram 1

17

Remove the nuts (14) and washers (10).

x 4 10 14 H M16

3

Remove the operating shaft(7) from the cylinder (12) and remove the operating device (20). 7 12

20


04--2004 E ALSTOM

L51--800EN/04 9/12

Maintenance


Removing the operating device, continued

Process, continued

The table below gives the steps of removing the operating device : Step 4

Action Remove the screws (9) and the washers (10).

Diagram

x 4 10

9

5

Insert the side panel (3) under the edge of the roof plate (4). Press it down to insert the mounting screws and fasten using nuts (2).

x 2 2 4

NYLSTOP M8

3

04--2004 E ALSTOM

L51--800EN/04 10/12

Maintenance


Installing the new operating device

Warning

NEVER WORK THE OPERATING DEVICE WHENTHIS IS NOT COUPLED TO THE CIRCUIT--BREAKER.

Process

To make this operation, refer to the module “Installing the operating device” . NOTE : Not to hold account of the ”fusible” pawn (new apparatus) indicated in the module ”Installing the operating device”. At the time of the maintenance actions, the function of the ”fusible” pin is fulfilled by the blocking tool indicated below.

Removing the blocking tool

AFTER THE ASSEMBLY OF THE NEWOPERATING MECHANISM, IT IS IMPERATIVE TO REMOVE THE BLOCKING TOOL (4) BEFORE THE FIRST OPERATION OF THE CIRCUIT--BREAKER. THE CIRCUIT BREAKER MUST NOT BE OPERATED AT A SF6 PRESSURE GAS LOWER THANTHE MINIMAL PRESSURE FORTHE INSULATION p me.

4

Stop ring

If the pole is equipped with a stop ring (5) of the “fusible”pin (9), reposition the stop ring (5) and hold in place using the screw (6). NOTE : Stick the screw (6) using LOCTITE 225 and apply a tightening torque of 17 N.m. 9

04--2004 E ALSTOM

5

6

L51--800EN/04 11/12

Maintenance


Reinflating the pole

DO NOT SUPPLY THE OPERATING MECHANISM MOTOR WITH CURRENT TO AVOID THE CLOSING SP RING BEING RELOADED. THE CIRCUIT BREAKER MUST NOT BE OPERATED AT A SF6 PRESSURE GAS LOWER THANTHE MINIMAL PRESSURE FORTHE INSULATION p me.

Process

To make this operation, refer to the modules :

Calculation of theSF6 gas filling pressure for using the pressure gauge (tool) S S

04--2004 E ALSTOM

Filling with SF6 gas

L51--800EN/04 12/12

Annexes


Presentation

Introduction

Special tooling is necessary for :  commissioning,  maintenance of the circuit--breaker. Only the tools and accessories specified on ordering are delivered. Commercially available tools (e.g. : spanners, torque wrenches, spirit levels...) are not supplied.

In this module

This module contains the following topics : Topic Special tools Accessories

07--2003 E

ALSTOM

Page 2 4

L60--010EN/02 1/6

Annexes


Special tools

Table of special tools

The table below gives the ALSTOM special tools : NUMBER

DESIGNATION

USE

D001875.. EMPTY TRANSPORT CASE (OPTIONAL)

Transport of SF6 gas filling tools and control tools.

FILLING TOOL

SF6 filling,, topping-up.

PRESSURE GAUGE

SF6 filling, topping-up.. Inspection of densimeter thresholds.

N55000401

--02842117 N55161602



465059004 WATER PRESSURE GAUGE (OPTIONAL) 

Checking for leaks

--02557208 N55161601 PRESSURE REDUCER

SF6 filling, topping-up.

V0004240001 Blocking tool of the pole operating shaft BLOCKING TOOL for replacing the operating device.


07--2003 E

ALSTOM

L60--010EN/02 2/6

Annexes


Special tools, continued

Table of special tools, continued

The table below gives the continuation of ALSTOM special tools : NUMBER

V0003731001 

D00220301

DESIGNATION

Electrical contact Inspection of densidensimeter threshmeter thresholds. old inspection case

LIFTING STRAP



D00001901 

--02861501 

D00477401 

07--2003 E

ALSTOM

USE

Handling of the pole and operating mechanism

Checking gas--tightLEAK DETECTOR ness of SF6 filling plug. SF6 leak detection.

TEST LAMP

CRANK HANDLE

Inspection of densimeter thresholds. Inspection of interruption contact wear.

Spring reloading.

L60--010EN/02 3/6

Annexes


Accessories

Table of accessories

The table below gives the ALSTOM accessories : NUMBER --01861432

DESIGNATION

USE

42 kg SF6 BOTTLE

SF6 filling topping--up.

SF6 BOTTLE


SF6 BOTTLE




SF6 BOTTLE


--01818336

LOCTITE 262 (50 ml)

crew oc ng.

--01818327

LOCTITE 225 (250 ml)

Screw sealing.

--01835265

MOLYKOTE 111 GREASE

--01835208

MOBILPLEX47 GREASE

--01835106

VASELINE 204--9



--01861435

20 kg



--01861434

10 kg



--01861433

5 kg

Preparation seals.

of

SF6

Lubricating screws before tightening to torques.

Preparation of electrical contact surfaces.


07--2003 E

ALSTOM

L60--010EN/02 4/6

Annexes


Accessories , continued

Table of accessories, continued

The table below gives the continuation of ALSTOM accessories : NUMBER

E

ALSTOM

USE

--01835118

CONTACTAL GREASE

--01835251

ASEOL 0--365.2 . GREASE

General lubrication.

--01831320

ABRASIVE PAPER A 400


--02212334

RAG


--02211842

ROUND BRUSH No.4


--02211831

BRUSH No.16


--01861262

07--2003

DESIGNATION

CAN OF ISOPROPANOL (1 l)


Preparation seals.

of

SF6

L60--010EN/02 5/6

Annexes

Tooling and accessories This page is intentionally blank.

07--2003 E

ALSTOM

L60--010EN/02 6/6

TRANSMISSION & DISTRIBUTION

High voltage switchgear

S U M M A R Y

of PRODUCT SAFETY SHEETS for equipment * manufactured by ALSTOM T&D - AHT

SUBJECT

Reference N°

Revision

Summary

PS 0000/A

03

Working environment

PS 0001/A

02

Handling Operations

PS 0002/A

02

Pressurized Equipment

PS 0003/A

02

SF6 : Use and Handling.

PS 0004/A

02

Chemicals

PS 0005/A

02

Electrical Equipment

PS 0006/A

02

Machinery

PS 0007/A

03

Operation

PS 0008/A

03

Maintenance

PS 0009/A

03

Remarks

Not applicable to pneumatically operated circuit breakers

* : excluding lightning arresters.

PS 0000/A

03

G. BERNARD

1998-08-12

Sheet N°

Revision

Written by

Date

Ch. MANIN

Signature Approved by

29/08/98

Date

1/1

Signature Page

This page is intentionally blank.



SAFETY SHEET

WORKING ENVIRONMENT

CAUSE OR ORIGIN OF HAZARD .

Any negligence as regards site organisation may cause an accident.

WORK REQUIREMENTS.

All remedial action, for all life-cycles of the equipment, must be carried out in a safe working environment.

SAFETY INSTRUCTIONS.

OBSERVE ALL GENERAL INSTRUCTIONS GOVERNING INSTALLATION, COMMISSIONING AND OPERATION IN ACCORDANCE WITH CURRENTLY ACCEPTED PRACTICES AS WELL AS THOSE LAID DOWN IN THE DOCUMENTATION SUPPLIED WITH THE EQUIPMENT.

PS 0001/A

02

G. BERNARD

1998-08-12

Sheet N°

Revision

Written by

Date

P. VANDAME Signature Approved by

98-08-28

Date

1/2 Signature Page



SAFETY INSTRUCTIONS

P U T R A T S

N O I T A R E P O

E C N A N E T N I A M

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

G N I K C A P

T R O P S N A R T

N O I T A L L A T S N I

X

X

X

X

& G G N N I I L P C P Y A C R E C R S

1 Personnel : -

Appropriate clothing, gloves, helmet, safety boots, harness, etc..

-

The personnel concerned must be familiar with the basic working regulations governing a given work station: mechanical, dielectric, pressure hazards, etc..

2 Handling Equipment : -

This must be in good working order, regularly maintained, properly adjusted and compliant with the standards in force in the country of use.

3 Tools in General : -

Only use tools appropriate to the type of work to be carried out.

4 Working Area : -

Make sure the floor is safe (free from oil, blunt objects, etc.).

-

The site must be properly demarcated and kept clear.

PS 0001/A Sheet N°

02 Revision

1996-03-18 1st issue

1998-08-12 Revision date

2/2 Page



SAFETY SHEET

HANDLING OPERATIONS


Any handling operation may involve danger : - for the personnel,

- for the equipment being handled, - for the installations or equipment in the vicinity .

WORK REQUIREMENTS.

As a general rule, handling operations must be carried out by personnel familiar with the basic handling regulations, using equipment in good working order, and wearing the appropriate protective clothing or equipment. Ensure that the condition of the cases is such that they can be safely handled (state of the wood, shockresistance, etc.).



PS 0002/A

02

G. BERNARD

1998-08-11

Sheet N°

Revision

Written by

Date

F. PIRAUD Signature Approved by

98-09-08

Date

1/3 Signature Page



P U T R A T S

N O I T A R E P O


X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

SAFETY INSTRUCTIONS

G N I K C A P

T R O P S N A R T


Handling operations must be carried out by personnel familiar with the basic handling regulations.

X

X

Personnel must be qualified to operate lifting equipment, cranes, overhead conveyors, etc..

X


Equipment in proper working order : -

Equipment must be checked and maintained regularly in accordance with local regulations.

-

All equipment must be properly housed.

Familiarity with the load to be handled (see details on the case).

Use of the appropriate handling equipment : -

Type of sling(s),

-

Correct slinging methods,

-

Use of special ALSTOM handling equipment.

Follow the handling instructions on : -

the cases (pictorial symbols: centre of gravity, slinging points, etc.),

-

the assembly instructions.

Compliance with the relevant work station safety instructions (proximity of electrical equipment).

Operator Safety : -

use of gloves, helmets, safety boots, etc.,

-

loads not to be carried with personnel underneath.

PS 0002/A Sheet N°

02 Revision

1996-03-18 1st issue

X


2/3 Page



SAFETY INSTRUCTIONS

G N I K C A P

T R O P S N A R T


Handling of insulating jackets at transport pressure (300 hPa maximum).

X

X

X

Ensure that cases have not been damaged during handling or prolonged storage.

Follow the stacking instructions.



X

X

It is essential to open cases from the top and to take care when unpacking.

P U T R A T S

N O I T A R E P O

X

X

X

Before handling any hydraulically operated component, bring oil pressure back to atmospheric pressure.

X

X

Before handling any mechanically operated component, disable the springs.

X

X

Bring insulating jacket working pressure back to transport pressure (300 hPa maximum).

X

X

PS 0002/A Sheet N°

02 Revision

1996-03-18 1st issue


3/3 Page




SAFETY SHEET

PRESSURIZED EQUIPMENT


Our equipment includes gas pressure assemblies (SF6, nitrogen, air, etc.) or fluids (oil).

WORK REQUIREMENTS. •

Comply with the storage, transport and operating instructions supplied with our equipment.

•

Before initial filling and pressurizing, check the overall condition of the shielding concerned : -

no signs of impact, splitting or chipping on the porcelain components, etc.,

-

no visible damage to hoses and/or rigid pipes (cuts, folds, corrosion, etc.) or to fittings and metal protection (accumulators, tank, etc.).



As a general rule, all work on pressurized equipment must be carried out by qualified personnel.

PS 0003/A

02

G. BERNARD

1998-08-12

Sheet N°

Revision

Written by

Date

F. PIRAUD Signature Approved by

98-09-08

Date

1/3 Signature Page



SAFETY INSTRUCTIONS

1

P U T R A T S

N O I T A R E P O


X

X

X

X

G N I K C A P

T R O P S N A R T


X

X


Pressurized Equipment : General.

1.1

Comply with the assembly instructions shown on both our equipment and the gas bottles.

1.2

Before starting work on any pressurized piece of equipment, make sure there is no pressure.

X

X

X

X

1.3

Before any handling, check to see how the equipment is fixed to its frame and how the frame is itself anchored.

X

X

X

X

1.4

High-pressure pipes must be fixed or otherwise made safe.

X

X

X

X

1.5

Before initial pressurization, check that all circuits are properly sealed.

X

X

X

X

1.6

Never tighten a pressure fitting.

X

X

X

X

1.7

Ensure that for every bolted connection for a volume under pressure there is an appropriate and properly fastened bolt at each relevant point.

X

It is strictly forbidden to lift or otherwise move a piece of equipment inflated to a pressure in excess of 300 hPa of gas.

X

X

Before giving any orders to move equipment, check visually or by ear that all the relevant pipe fittings are tight.

X

X

X

X

1.8

1.9

1.10 Comply with the standard instructions governing the use of compressed gas bottles (e.g. keep the bottle away from any source of heat).

PS 0003/A Sheet N°

02 Revision

1996-03-18 1st issue

X

X

X

X


X

X

X

X

X

X

X

2/3 Page



SAFETY INSTRUCTIONS

2

G N I K C A P

T R O P S N A R T


P U T R A T S

N O I T A R E P O


X

X

X

X

X

X

SF6 Pressure Equipment.

2.1

See SF6 Safety Sheet.

X

X

X

2.2

An effective pressure of 300 hPa, used for the transport and storage of our products, is not regarded as a potential hazard.

X

X

X

2.3

Always fill the unit using the appropriate equipment, which should include a safety valve.

X

X

X

2.4

Do not inflate over and above the prescribed pressure.

X

X

X

2.5

It is strictly forbidden to release SF6 to atmosphere. All discharged gas must without exception be recovered.

X

X

X

3

3.1

3.2


X

X

Hydraulic Equipment.

Circuit Purging. This must be done under pressure. Use the appropriate equipment. Hydraulic Control Unit. The doors must be kept shut except when control tests are being carried out.

PS 0003/A Sheet N°

02 Revision

1996-03-18 1st issue

X

X

X


X

3/3 Page




SAFETY SHEET

SF6 Use and Handling

CAUSE OR ORIGIN OF HAZARD.

Sulphur hexafluoride (SF6) is a gas which in its basic state is colourless, odourless and tasteless. It is not toxic, but it cannot sustain life. It is a heavy gas that is dispersed slowly into the atmosphere. In its natural state, SF6 is delivered and stored in pressurized tanks (bottles or spheres) at a pressure of approximately 20 bar at 20°C (in its liquid form) and complies with IEC standard 376. However, under the effect of the electric arc, the SF6 molecules break up and the elements mostly recombine during cooling either due to extinction of the arc or by regeneration caused by the presence of active absorbent charges within the circuit breaker. Various chemical reactions, associated with the volatilization of the materials in contact with the electric arc, create either fluoridized or sulphurous secondary gas products or solid products in the form of metallic fluoride powder ; or again, in the presence of traces of water or moisture, hydrofluoric acid or sulphur dioxide. In the life-cycle of the equipment, SF6 can be observed not only in its pure state, but also in its contaminated state : -

the use of new SF6 for filling or adding,

-

leaks under normal operating conditions,

-

maintenance involving the opening of circuit breakers containing old SF6 (decomposition products),

-

abnormal conditions (internal arc fault causing the shielding to break),

-

circuit breaker recycling on end of life-cycle.

WORK REQUIREMENTS.

Follow the instructions for the transport of pressurized containers. The storage of these containers is governed by the same storage regulations as compressed gas bottles : -

keep away from any source of heat and in a cool, dry and well-ventilated area, always fit a pressure reducing valve.

PS 0004/A

02

G. BERNARD

1998-08-12

Sheet N°

Revision

Written by

Date

Ch. MANIN Signature Approved by

29/8/98

Date

1/3 Signature Page



Whilst SF6 in its pure state is not toxic, the decomposition products have varying degrees of toxicity. They may irritate the skin, the eyes and the mucous membranes; and in massive amounts may cause serious lesions (oedema, heart failure, circulatory disorders and unconsciousness). However, very rapidly and before there is any real danger, signs such as a pungent smell, irritation of the mucous of the nose, the eyes and the mouth will give a warning and the personnel concerned will have sufficient time to take the necessary safety actions. Where the gas is used or handled within enclosed premises, ensure adequate ventilation, especially low down. If the gas is inhaled, the area concerned must be evacuated immediately. Under normal operating conditions, leaks are exceptionally minor and not critical, even when the gas contains impurities (due to the regenerating filters in the circuit breaker). Filling and where necessary topping up operations must be carried out using the appropriate tools. During maintenance operations, or at the end of the life-cycle, dust inside the equipment must be removed by a vacuum extractor and the operator should wear a mask. Gas recovery must be carried out using the appropriate gas recovery equipment. Gases and decomposition products must be treated and/or disposed of by specialist organizations. Under extremely abnormal conditions (e.g. break in the shielding) in an enclosed space, individual protective equipment is recommended. Lastly, it is forbidden to smoke, drink, eat or keep food in the vicinity of open SF6 equipment, whether indoors or outside (harmful dust).



It is essential that both the fitter and the user read IEC Technical Report 1634 regarding the use and handling of sulphur hexafluoride gas.

PS 0004/A Sheet N°

02 Revision

1996-03-18 1st issue


2/3 Page



G N I K C A P

T R O P S N A R T

Transport of SF6

X

X

Pure SF6

X

X

SAFETY INSTRUCTIONS


P U T R A T S

X

X

Contaminated SF6

PS 0004/A Sheet N°

02 Revision

N O I T A R E P O



X

X

1996-03-18 1st issue


X

X

3/3 Page




SAFETY SHEET

CHEMICALS


Generally speaking, the products used for installation and commissioning are bought chemical products, namely : -

Hydraulic oil

-

Grease

-

Loctite

-

Touching-up paint

-

Isopropanol

-

Drying agents

These must be kept in their original packing and the tops replaced after use. Some packing products require careful handling as they may contain preservatives.

WORK REQUIREMENTS.

As a general rule, chemical products must be used and stored away from any source of heat. Smoking is to be avoided. Avoid contact with the skin and any splashes to the eyes. Take the basic health and safety precautions. Products and packing must be destroyed in accordance with local environmental regulations.



Other products: SF6 (see relevant sheet)

PS 0005/A

02

G. BERNARD

1998-08-12

Sheet N°

Revision

Written by

Date

Ch. MANIN Signature Approved by

29/8/98

Date

1/2 Signature Page



SAFETY INSTRUCTIONS

G N I K C A P

T R O P S N A R T


Drying Agents

X

X

X

Hydraulic Oil

X

X

X

X

Consumables (Grease & Paint) (Isopropanol)

X

X

X

X

Loctite

PS 0005/A Sheet N°

02 Revision

P U T R A T S

X

1996-03-18 1st issue


N O I T A R E P O

X



X

X

X

X

X

X

2/2 Page



SAFETY SHEET

ELECTRICAL EQUIPMENT

CAUSE OR ORIGIN OF HAZARD.

Our equipment is subjected to high and low tension loads that could expose the personnel to the risk of electrocution.

WORK REQUIREMENTS.

The operating company is responsible for ensuring compliance with the safety instructions governing high tension. The basic regulations in respect of low lo w tension installations must also be complied with.



All work on high-tension networks and low-tension installations must be performed by qualified operators wearing personal protective clothing and using the appropriate tools and e quipment.

PS 0006/A

02

G. BERNARD

1998-08-12

Sheet N°

Revision

Written by

Date

G. RENAUDIN Signature Approved by

1998-09-02

Date

1/2 Signature Page



SAFETY INSTRUCTIONS

1

G N I K C A P

T R O P S N A R T


X

P U T R A T S

N O I T A R E P O


X

X

X

X

X

X

X

X

X

X

X

High Tension .

1.1 Comply Comply with the regulat regulations ions governing governing the the work station. station. 1.2 In the case of items equipp equipped ed with capacit capacitors, ors, make make sure they are discharged prior to removal and shortcircuited while work is being carried out. 2

& G G N I N I L P C P Y A C R E C R S

Low Tension.

2.1 Prior to any work work on the the low-tensio low-tension n circuit circuit or equipment, cut off the power supply.

X

X

2.2 When replac replacing ing an electrical electrical compon component ent on the control control equipment, follow the safety instructions shown in the "Machinery" safety sheet.

PS 0006/A Sheet N°

02 Revision

1996-04-04 1st issue


2/2 Page



SAFETY SHEET

M A C H I N E R Y


Our equipment contains moving parts (linkage, levers, etc.), reserve power (springs, accumulators, etc.) and pressurized sheathing ; the associated hazards are dealt with in safety sheet "Pressurized Equipment" PS 0003/A.

WORK REQUIREMENTS.

Follow the relevant ALSTOM operating and maintenance instructions. Prior to any work on the control equipment and the motion transfer mechanism, disable the springs on mechanically operated units and bring pressure back to zero for hydraulically operated units.


OBSERVE ALL GENERAL INSTRUCTIONS GOVERNING INSTALLATION, COMMISSIONING AND OPERATION IN ACCORDANCE WITH CURRENTLY ACCEPTED PRACTICES AS WELL AS THOSE LAID DOWN IN THE DOCUMENTATION SUPPLIED SUPPLIED WITH THE EQUIPMENT.

As a general rule, work on the control equipment and transmissions must be performed by qualified operators wearing personal protective clothing and using the appropriate tools and equipment.

PS 0007/A

03

G. BERNARD

1998-08-12

Sheet N°

Revision

Written by

Date

G. RENAUDIN Signature Approved by

1998-09-02

Date

1/2 Signature Page



P U T R A T S

N O I T A R E P O


X

X

X

X

X

2.1 Before Before any work work is carried carried out, out, cut off all power power to the reset motor.

X

X

X

X

X

2.2 Deactivate Deactivate the the opening opening and closing closing accordance with ALSTOM instructions.

X

X

X

X

X

X

X

X

X

X

3.1 Before Before any work work is carried carried out, out, cut off power power to the motor pump.

X

X

X

X

X

3.2 Reduce Reduce the pressur pressure e of the hydraulic hydraulic circuit circuit to zero. zero.

X

X

X

X

X

G N I K C A P

SAFETY INSTRUCTIONS

1

& G G N I N I L P C P Y A C R E C R S

Spring-operated Mechanism .

springs springs

in

2.3 Make sure that that all safety safety rules rules are complied complied with while while the work is being carried out. 3


Moving Parts .

1.1 Before Before any work work is is carried carried out on transmis transmission sion components, ensure that the control equipment has been deactivated. 2

T R O P S N A R T

Hydraulic Mechanism.

PS 0007/A Sheet N°

03 Revision

1996-04-04 1st issue


2/2 Page



SAFETY SHEET

OPERATION


If the unit shows any sign of an unwanted condition, it must be examined by the user.

WORK REQUIREMENTS.

The operators concerned must be suitably qualified and must comply with the normal operating and maintenance instructions issued by ALSTOM. Depending on the severity of the fault observed, the necessary corrective measures must be taken, e.g :

- replenish the SF6 gas in the event of a leak, -

isolate the system in the event of a major malfunction.



PS 0008/A

03

G. BERNARD

1998-08-12

Sheet N°

Revision

Written by

Date


98.08.28

Date

1/2 Signature Page



SAFETY INSTRUCTIONS

: Opening malfunction : S E S - to do with the sequencing chain, A C - following a mechanical fault. G N I W O Cut-off failure. L L O F E H T External dielectric flash-over. N I D E D I SF6 pressure drop due to either : V O R - major leak (switch to 2nd threshold), P - no 1st threshold alarm complement. N O I T C U R Loss of motor power : T S N - oil, compressed air, component failure. I C I F I C E P Activation of safety device, if fitted. S E H T H T Use only the appropriate products recommended I W by ALSTOM. Y L P M O C Abnormal noise.

PS 0008/A Sheet N°

03 Revision

1996-03-18 1st issue

G N I K C A P

T R O P S N A R T


P U T R A T S

N O I T A R E P O

X

X



X

X

X

X

X

X

X

X

X

X

X

X


X

2/2 Page



SAFETY SHEET

MAINTENANCE

CAUSE OR ORIGIN OF HAZARD . •

To ensure safe and unimpaired operation of the e quipment, regular maintenance is essential. Neglected maintenance can create hazards.

•

Maintenance operations involve hazards that must be guarded against.

WORK REQUIREMENTS. •

Comply with the maintenance programme and service intervals shown in the ALSTOM manuals.

•

In addition, every maintenance operation must comply with the following requirements : -

it must be carried out by suitably qualified personnel,

-

both the work involved and the associated hazards must be clearly identified beforehand,

-

the tools and equipment used (standard or specific to ALSTOM) must be appropriate and in proper working order,

-

any replacement parts must be ALSTOM parts.


OBSERVE ALL GENERAL INSTRUCTIONS GOVERNING INSTALLATION, COMMISSIONING AND OPERATION IN ACCORDANCE WITH CURRENTLY ACCEPTED PRACTICES AS WELL AS THOSE LAID DOWN IN THE DOCUMENTATION SUPPLIED WITH THE EQUIPMENT. •

•

Refer to the relevant SAFETY sheets. The safety instructions below are general and not exhaustive. They should therefore be modified and/or supplemented for all specific maintenance operations to be carried out.

PS 0009/A

03

G. BERNARD

1998-08-12

Sheet N°

Revision

Written by

Date


98.08.28

Date

1/2 Signature Page



N O I T A R E P O


Identify the equipment to be worked on and ensure it is switched off.

X

X

X

Obtain as much information as possible from the user regarding the condition of the unit.

X

X

X

Check that the unit is earthed both upstream and downstream.

X

X

X

Demarcate the work area.

X

X

X

Ensure that the operator is equipped with the personal protective clothes and equipment required (safety glasses, gloves, safety boots, harness, etc.).

X

X

X

Ensure that the equipment used is compliant and in good condition (scaffolding, slings, suspended platforms, electrical equipment, tools, etc.).

X

X

X

Ensure that the safety instructions in respect of each particular hazard are complied with.

X

X

X

SAFETY INSTRUCTIONS

PS 0009/A Sheet N°

03 Revision

1996-03-18 1st issue

G N I K C A P

T R O P S N A R T


P U T R A T S



2/2 Page

TRANSMISSION & DISTRIBUTION Appareillage haute tension

QUALITÉ - QUALITY ENVIRONNEMENT - ENVIRONMENT SÉCURITÉ - SECURITY

Critère d'Acceptation

ACCEPTANCE CRITERIA

ÉMETTEUR - TRANSMITTER :

N° CRITÈRE D’ACCEPTATION

Qual. Q4. Montage

ACCEPTANCE CRITERIA NUMBER CA 103 141 3

QUALITY DEPARTEMENT

INDICE : 004

21/01/2003

OBJET - TITLE : DISJONCTEUR GL314 À COMMANDE MÉCANIQUE FK3.1 - MONTAGE SITE

GL314 CIRCUIT BREAKER WITH FK3.1 SPRING MECHANISM - SITE ERECTION

- DESTINATAIRES - EXEMPLARIES : Responsable Coordination Technique (ATTENCIA Bernard) Responsable Groupe devis techniques (THION René) Responsable Groupe Notices (LABADIE Jean-Claude) Responsable Qualité montage (JEULIN Michèle) Responsable Ventes aux licenciés (VENARD Pierre) Pas de poste OPM en diffusion

Rédacteur(s) :

Approbateur(s) :

Drafter visa

Approver visa

HYNAUX Patrick Signé le 20/01/2003

CA 103 141 3 N° d’Instruction-Instruction

Vérificateur(s) :

Supervisor visa

MARTIN Joseph Signé le 21/01/2003

06/02/2002 Date d’émission-Ist issue

Le présent document est à la propriété de ALSTOM. Remis à titre confidentiel, il ne peut être communiqué à des tiers ni utilisé ou reproduit qu’en stricte conformité d’autorisations expresses préalables.

ALLAIRE Xavier Signé le 21/01/2003

004 Indice-Revision

21/01/2003 Date de révision

1/4 Page- Sheet

This document is the sole property of ALSTOM. It is submitted on a confidential basis and may not be passed on to third parties, used or reproduced except in exact accordance with prior express permission.


VALIDITÉ VALIDITY

DISJONCTEUR

: GL314

CIRCUIT BREAKER

PRESSION SF6

: Pre = 0,75 - 0,85 MPa (absolue)

SF6 PRESSURE

COMMANDE

: MÉCANIQUE FK 3.1

MECHANISM

: FK3.1 SPRING MECHANISM

DÉFINITION DES DURÉES

TIME DEFINITION

DURÉE DE FERMETURE : Intervalle de temps entre l'instant de mise sous tension du circuit de fermeture et l'instant où les contacts se touchent dans tous les pôles.

CLOSING TIME : Interval of time between energizing the closing circuit and the instant when the contacts touch in all poles.

DURÉE D'OUVERTURE : Intervalle de temps entre l'instant de mise sous tension du déclencheur et l'instant de la séparation des contacts d'arc sur tous les pôles (ou des contacts du simulateur commandés par la charge fictive).

OPENING TIME : Interval of time between the instant of energizing the opening release and the instant when the arcing contacts have separated in all poles (or simulator contacts controled by the dummy load).

DURÉE D'OUVERTURE-FERMETURE : Intervalle de temps entre l'instant de séparation des contacts dans tous les pôles, et l'instant où les contacts se touchent dans le premier pôle pendant une manoeuvre de refermeture (refermeture : l'appareil est refermé automatiquement après un intervalle de temps prédéterminé -220 ms-).

OPEN-CLOSE TIME : Interval of time between the instant when the arcing contacts have separated in all poles and the instant when the contacts touch in the first pôle during a reclosing operation (reclosing : the equipment is automatically reclosed after a predetermined interval of time –220 ms-).

DURÉE DE FERMETURE-OUVERTURE : Intervalle de temps entre l'instant où les contacts se touchent dans le premier pôle pendant une manoeuvre de fermeture, et l'instant où les contacts d'arc sont séparés dans tous les pôles pendant la manoeuvre d'ouverture qui lui fait suite.

CLOSE OPEN TIME : Interval of time between the instant when the contacts touch in the first pole during a closing operation, and the instant when the arcing contacts have separated in all poles during the subsequent opening operation.

ÉCART DE SIMULTANÉITÉ ENTRE PÔLES : Pour la même manoeuvre, différence de temps maximale entre les instants où les contacts de pôles se touchent à la fermeture et différence de temps maximale entre les instants de séparation des contacts des pôles à l'ouverture.

DEVIATION BETWEEN POLES : For the same operation maximum deviation between the instants when the poles contacts touch during the closing operation and maximum deviation between the instants when the poles contacts are separated during the opening operation.



004 Indice-Revision


2/4 Page- Sheet


DURÉES DE FONCTIONNEMENT

(en ms à tension assignée)

MECHANICAL OPERATING TIMES ( in ms at rated voltage)

DURÉES DES CHAMBRES TIMINGS OF CHAMBERS

MANOEUVRE

Minimum Maximum

OPERATION

Fermeture - Closing Ouverture O1/O2 - Opening O1/O2 Ouverture par bobine MU avec relais – Opening with minimum

82 16 35

102 26 70

87 94 106 20 31

112 122 132 40 54

37

63

82 30 35 16 82 30

102 50 65 26 102 50

voltage coil with relay

Fermeture par relais TEC - Closing with relay TEC Fermeture par relais Allen Bradley - Closing with relay Allen Bradley Fermeture par relais RE3000 - Closing with relay RE3000 Ouverture par relais TEC O1/O2 - Opening with relay TEC O1/O2 Ouverture par relais Allen Bradley O1/O2 - Opening with relay Allen Bradley O1/O2

Ouverture par relais RE3000 O1/O2 - Opening with relay RE3000 O1/O2

Fermeture de CO - Closing of CO Ouverture de CO - Opening of CO CO 1ère Ouverture de O-CO - 1 st Opening of O-CO Fermeture de O-CO - Closing of O-CO 2ème Ouverture de O-CO - 2nd Opening of O-CO

DURÉES DES CONTACTS AUXILIAIRES TIMINGS OF AUXILIARY CONTACTS

TYPE DE CONTACT - MANOEUVRE TYPE CONTACT - OPERATION

Type a / Fermeture de CO - Closing of CO Type b / Fermeture de CO - Closing of CO Type a / Ouverture de CO - Opening of CO Type b / Ouverture de CO - Opening of CO Type a / 1ère Ouverture de O-CO - 1 st Opening of O-CO Type b / 1ère Ouverture de O-CO - 1 st Opening of O-CO Type a / Fermeture de O-CO - Closing of O-CO Type b / Fermeture de O-CO - Closing of O-CO Type a / 2ème Ouverture de O-CO - 2nd Opening of O-CO Type b / 2ème Ouverture de O-CO - 2nd Opening of O-CO



004 Indice-Revision

Minimum Maximum

82 67 24 34 10 20 82 67 24 34


110 92 54 64 30 40 110 92 54 64

3/4 Page- Sheet


ÉCART ENTRE POLES

(en ms à tension assignée)

DEVIATIONS BETWEEN POLES

(in ms at rated voltage)

MANOEUVRE OPERATION Fermeture – Closing réseau network 50 Hz réseau network 60Hz Ouverture - Opening

DURÉES DE REARME

(en s à tension assignée)

CHARGING TIME

(in s at rated voltage)

Tension Moteur en V

Maximum 5 4 3

Maximum

Motor Voltage in V

toutes

12

all

RESISTANCE DE CONTACT DU CIRCUIT PRINCIPAL (avec prise de courant) (en sous courant continu de 100A) MAIN CIRCUIT RESISTANCE (with HV terminal) (in with a 100A direct courrent)

Type de chambre Type of chamber

105 /4 105/ 5 105/ 7 105/ 11 105/ 12


Maximum 48 50 52 50 52


004 Indice-Revision


4/4 Page- Sheet

Cette page est intentionnellement blanche.

ALSTOM Transmission & Distribution / Appareillage Haute Tension 130, rue Léon Blum -- BP 1321 -- 69611 Villeurbanne cedex -- France Téléphone : 33 (0) 4 72 68 34 34 -- Téléfax : 33 (0) 4 72 68 34 96



Manual operations

FK 3-1 / FK 3-06 motor-wound spring operating mechanism

Manual operations FK 3-1 / 3-06 motor-wound spring operating mechanisms for outdoor circuit breakers

Administered by

First issued

Written by

Released by

SEH

15.01.1998

E. Suter/TMA-SEH /hz

E. Suter, TMA-SEH / 21.5.2003

21.5.2003 © ALSTOM

48.020.181E/2 1/26



Manual operations


FK 3-X motor-wound spring operating mechanism for outdoor circuit breaker

Contents

21.5.2003 © ALSTOM

Page

Introduction

3

Safety

3

Manual operations possible

6

Preparation of operating mechanism for manual operations

9

Slow closing

14

Slow opening

16

Manual discharge of closing spring

19

Final steps after manual operations are complete

23

48.020.181E/2 2/26



Manual operations


Introduction This manual describes the following manual operations: Slow closing Slow opening Manual discharge of closing spring • • •

Manual operations as described in these instructions are not necessary in the course of installation or in normal circuit breaker operation. The circuit breaker can be slowly closed or slowly opened as required for adjustment and inspection purposes. In order to remedy a problem after improper manipulations or in case of circuit breaker malfunctions, the equipment can be slowly closed or slowly opened or the closing spring can be manually discharged.

Safety The 70.00 motor-wound spring operating mechanisms feature state-of-theart design and high operational reliability. They can nevertheless pose a hazard if used improperly. The circuit breaker operator must therefore ensure that assigned personnel Is familiar with locally and nationally applicable safety and accidentprevention regulations, particularly as applicable to high-voltage switchgear and other high-voltage equipment Is aware of and comply with the contents of these instructions Has received technical training on circuit breakers, including operating mechanisms Observes safety instructions affixed to the apparatus Has the duty immediately to report any changes that interfere with safety •

• •

• •

Necessary conditions for performance of manual operations

21.5.2003 © ALSTOM

• • •

The circuit breaker is in open position. The circuit breaker is earthed on both sides. The control voltage is disconnected.

48.020.181E/2 3/26



Safety: general

Manual operations


•

•

DANGER

Personal safety when performing manipulations on the operating mechanism

•

•

•

WARNING

•

•

•

WARNING

•

•

•

WARNING

21.5.2003 © ALSTOM

•

Manipulations not in compliance with these instructions pose hazards for the personnel involved as well as for the motor-wound spring operating mechanism. Manipulations on the motor-wound spring operating mechanism that do not comply with the FK 3-X instructions create a danger of death or injury to the person performing them. Damage to the motor-wound spring operating mechanism may also result. Perform only manipulations that comply with the instructions for FK 3-X motor-wound spring operating mechanisms.

The closing spring is charged after the control voltage is disconnected. Inadvertent switching operations are possible while performing manipulations on the operating mechanism even though the control voltage is disconnected. Injury may result from touching parts that are moving. To discharge the springs, use manual releases to open, close and reopen with the control voltage disconnected.

Spring operating mechanisms with undervoltage releases open immediately when the control voltage is disconnected. This can lead to injury when performing manipulations in the spring operating mechanism. Disable the undervoltage release to prevent unforeseen opening operations.

When the motor voltage is turned on, the motor immediately begins to wind the closing spring. Injury may result from touching parts that are moving and/ or springdriven. When turning on the control voltage, keep body parts away from parts of the equipment that are moving and/ or spring-driven.

48.020.181E/2 4/26



Product safety

Manual operations


•

•

CAUTION

•

•

•

CAUTION

•

•

•

CAUTION

•

•

•

CAUTION

•

•

•

CAUTION

21.5.2003 © ALSTOM

•

If the spring operating mechanism is operated with no circuit breaker, the total energy is released inside the spring operating mechanism. Damage to the operating mechanism may result. Operate the spring operating mechanism only with the circuit breaker coupled to it.

If the gas pressure of the circuit breaker is lower than the minimum value for mechanical switching operation (listed on the warning plate in the spring operating mechanism), an excessively high energy is released inside the spring operating mechanism. Damage to the circuit breaker and the spring operating mechanism may result. Operate the spring operating mechanism only with a circuit breaker having a gas pressure higher than the minimum value for mechanical switching operation.

Dust inside the spring operating mechanism can interfere with the functioning of moving parts such as latches, rollers and shafts and can impair the performance of electrical equipment. Malfunctions and damage to the spring operating mechanism may result. Always keep the inside of the spring operating mechanism free of dust. Always close the cabinet door in correct fashion to bar the entry of dust.

The use of cleansers, rust-preventing oil or sprays can lead to heavy buildups of gum. This can interfere with the functioning of the spring operating mechanism. Use only mechanical cleaning aids when performing cleaning and/ or corrective maintenance. If relubrication is necessary, it must be carried out in compliance with the FK 3-X lubrication instructions.

Moisture inside the spring operating mechanism leads to condensation and subsequent corrosion of steel parts. Malfunctions and damage to the spring operating mechanism may result. The heating (anticondensation feature) must always be in operation, regardless of where the circuit-breaker is installed.

48.020.181E/2 5/26



Manual operations


Manual operations possible Operating mechanism not coupled

•

•

The motor-wound spring operating mechanism as delivered is mounted on the circuit breaker as described in the installation manual. If the as-delivered condition of the uncoupled operating mechanism has been modified in error, the following manual operations can be performed in order to restore the as-delivered condition.

➁

➀


g n w i o n l S e p o

g n w i n o l S e p o

➃

➂

If

Note

21.5.2003 © ALSTOM

Action No action (asdelivered condition)

Fig. ➀

Closing spring discharged; circuit breaker position indicator OPEN

Fig. ➁

Closing spring charged; circuit breaker position indicator O PEN

Fig. ➂

Closing spring discharged; circuit breaker position indicator CLO SED 1)

Fig. ➃

Closing spring charged; circuit breaker 1. Slowly open position indicator CLOSED 1) 2. Manually discharge closing spring

•

•

•

Manually discharge closing spring Slowly open

1) If the spring operating mechanism has been operated with no circuit breaker, consult the manufacturer to identify any possible damage.

48.020.181E/2 6/26



Operating mechanism mounted on circuit breaker and coupled

Manual operations


•

The following manual operations can be performed for inspection purposes and to remedy problems:

➁

➀


g n i w o n l S e p o

g n i w o n l S e p o

g n w i o s l o S l c

g n w i o s l o S l c

➃

➂

If

Fig. ➀

Action Closing spring discharged, circuit breaker position indicator O PEN For inspection and ad justment Closing spring charged, circuit breaker position indicator OPEN For inspection and ad justment Circuit breaker must not be closed Closing spring discharged, circuit breaker position indicator CLOSED For inspection and ad justment Closing spring charged, circuit breaker position indicator CLOSED For inspection and ad justment

•

Slowly close

•

Slowly close

•

Fig. ➁

•

•

•

Fig. ➂

Manually discharge closing spring

•

Slowly open

•

Slowly open

•

Fig. ➃

•

21.5.2003 © ALSTOM

48.020.181E/2 7/26



Spring position indicator and circuit breaker position indicator in an intermediate position

Manual operations


•

•

If the spring position indicator or the circuit breaker position indicator is in an intermediate position, there is a defect in the spring operating mechanism or the circuit breaker. Before performing manual operations, consult the manufacturer in order to diagnose the fault and determine how to remedy it.

Possible positions of the position indicators

Spring position indicator in intermediate position

21.5.2003 © ALSTOM

Circuit breaker position indicator in intermediate position

48.020.181E/2 8/26



Manual operations


Preparation of operating mechanism for manual operations Prepare cabinet

If

Action

Horizontal rear panel mounting

• • •

Vertical rear panel mounting

•

Remove side panels 78.01 Remove side panel lock nuts 78.20 Swing side panel 78.01 outward and pull down Unscrew roof mounting screws 78.18 and lift off roof 78.02

Horizontal mounting shown 78.02 78.18 78.07 78.01 78.19 78.20

78.01 Side panel 78.02 Roof 78.07 Lifting lugs

Disable manual releases

•

•

WARNING

21.5.2003 © ALSTOM

•

78.18 78.19 78.20

Roof mounting screws Cover panel Side panel lock nuts

The manual releases can be inadvertently actuated when performing manipulations on the spring operating mechanism. Injury may result from performing manipulations on the spring operating mechanism without disabling the manual releases. Disable the manual releases to prevent inadvertent manual actuation of the spring operating mechanism.

48.020.181E/2 9/26



Manual operations


If

Action

Spring operating mechanism without undervoltage release

The manual releases are normally disabled. If not: Unscrew M6 screws. Spring operating mechanism with undervoltage release, with Slide manual release disabling feature integral disabling device 70.58 as shown by arrow until manual releases are disabled. Retighten M6 screws. • •

•

Spring operating mechanism with undervoltage release, without disabling feature

Manual release disabling feature 70.58 is normally not installed in this version. Install manual release disabling device 70.58 and slide as shown by arrow until manual releases are disabled. Tighten M6 screws. •

•

Manual release disabling device

70.13 70.58 70.07 M6

70.58 70.07

21.5.2003 © ALSTOM

Manual release disabling device Manual CLOSE release

70.13

Manual TRIP release

48.020.181E/2 10/26



Disable undervoltage release

Manual operations


•

If the spring operating mechanism is equipped with undervoltage releases and slow closing or slow opening is necessary, disable the undervoltage release.

If

Action

Undervoltage release without disabling device •

•

71.20

Insert hooked end of disabling device 71.20 and pull magnet out to the stop. Then gently tighten the nut by hand.

Nut

71.20 Undervoltage release disabling device Undervoltage release with integral disabling device

•

Turn disabling lever from service position to disabled position.

Disabling lever in service position

Disabling lever in disabled position

21.5.2003 © ALSTOM

48.020.181E/2 11/26



Disable closing latch if closing spring is charged

Manual operations


•

•

WARNING

•

•

The closing latch can be inadvertently actuated when performing manipulations on the spring operating mechanism.

Injury may result from performing manipulations on the spring operating mechanism with the closing spring charged and the closing latch not disabled. Disable the closing latch in order to prevent inadvertent manual actuation of the spring operating mechanism.

Insert disabling device 70.71 of closing latch 70.05 and fix to the axle of manual TRIP release 70.13.

70.05 70.13 70.05 70.13 70.71

Remove safety plate

•

Closing latch Manual TRIP release Closing latch disabling device

70.71

Remove safety plate 70.48.

70.48 70.96 70.48 Safety plate

21.5.2003 © ALSTOM

70.96 Securing screw

48.020.181E/2 12/26



Install closing spring discharging device

Manual operations


•

•

Place closing spring discharging device 71.15 on securing screw 70.96 and the lip of front chassis panel 70.85. Then turn tie rod 71.08 clockwise by hand until distance sleeve 71.07 of the device comes to bear on guide socket 70.95.

70.26 71.07 70.95 70.85 70.96 71.08 71.09

70.26 70.85 70.95 70.96

Relieve load on chain

21.5.2003 © ALSTOM

•

Closing chain Front chassis panel Guide socket Securing screw

71.07 Distance sleeve 71.08 Tie rod 71.09 Hex nut

Turn the tie rod clockwise about four more turns to charge closing spring further. The chain now bears no load.

48.020.181E/2 13/26



Manual operations


Slow closing The spring operating mechanism has been made ready fo r manual operations.

Operating condition of circuit breaker and operating mechanism

Positions of position indicators

Spring position indicator shows closing spring discharged or charged

Tools required

21.5.2003 © ALSTOM

Circuit breaker position indicator shows OPEN

70.71 Closing latch disabling device 70.72 Slow-movement device 71.15 Closing spring discharging device 70.58 Manual release disabling plate 1) 71.20 Undervoltage release disabling device 1) 1) Required only for a spring operating mechanism equipped with an undervoltage release but no integral disabling feature

48.020.181E/2 14/26



Install slowmovement device

Manual operations


•

•

Manual closing

•

•

•

Lay support plate 70.73 of slow-movement device 70.72 on upper right distance sleeve 70.76 and bring to bear against operating mechanism chassis. Engage hook 70.74 of slow-movement device with pin 70.77 of support latch 70.78.

Turn hex nut 70.75 clockwise until support latch 70.78 of roller lever 70.11 comes to rest against trip latch 70.16 with an audible “snap”. As slow closing proceeds, trip spring 70.20 is simultaneously charged. Stop sleeve 70.80 prevents overwinding. The circuit breaker position indicator now shows CLOSED.

70.75 70.73 70.76 70.80

70.11 70.78 70.74 70.77 70.16

70.11 70.16 70.73 70.74 70.75

Operating condition after slow closing

Roller lever Trip latch Support plate Hook Hex nut

70.76 70.77 70.78 70.80



Remove slowmovement device

21.5.2003 © ALSTOM

Distance sleeve Pin Support latch Stop sleeve

•

Circuit breaker position indicator shows CLOSED, trip spring charged

Turn hex nut 70.75 counterclockwise until hook 70.74 is relieved of enough load to allow removal of slow-movement device 70.72.

48.020.181E/2 15/26



Manual operations


Slow opening The spring operating mechanism has been made ready f or manual operations. Verify operating state of circuit breaker and spring operating mechanism



Tools required

Install slowmovement device

70.71 Closing latch disabling device 71.15 Closing spring discharging device 70.72 Slow-movement device 70.58 Manual release disabling plate 1) 71.20 Undervoltage release disabling device 1) 1) Required only for a spring operating mechanism equipped with an undervoltage release but no integral disabling feature •

•

Relieve load on trip latch

Circuit breaker position indicator shows CLOSED, trip spring charged

•

Lay support plate 70.73 of slow-movement device 70.72 on upper right distance sleeve 70.76 and bring to bear against operating mechanism chassis. Engage hook 70.74 of slow-movement device with pin 70.77 of support latch 70.78. Use tool to turn hex nut 70.75 clockwise until the torque increases, signalling that the load on trip latch 70.16 has been relieved.

70.75 70.73 70.76 70.80

70.11 70.74 70.77 70.78 70.16

70.11 70.16 70.73 70.74 70.75 21.5.2003 © ALSTOM


70.76 70.77 70.78 70.80

Distance sleeve Pin Support latch Stop sleeve 48.020.181E/2 16/26



Re-enable manual releases

Manual operations


• • •

Unscrew M6 screws. Slide manual release disabling device 70.58 as shown by arrow. Tighten M6 screws.

70.13 70.58 70.07 M6

70.58 70.07

Manual opening

• •

•

•

Manual release disabling device Manual CLOSE release

70.13

Manual TRIP release

Use manual TRIP release 70.13 to release trip latch 70.16. Simultaneously turn nut 70.75 counterclockwise until support latch 70.78 of roller lever 70.11 has moved past trip latch 70.16. Continue turning nut 70.75 counterclockwise until the load on hook 70.74 is relieved. At the end of this procedure, trip spring 70.20 is discharged and circuit breaker position indicator 70.52 shows “circuit breaker O PEN”.

70.75 70.73 70.76 70.80

70.11 70.74 70.77 70.78 70.16

70.11 70.16 70.73 70.74 70.75 21.5.2003 © ALSTOM


70.76 70.77 70.78 70.80

Distance sleeve Pin Support latch Stop sleeve

48.020.181E/2 17/26



Remove slowmovement device

Disable manual releases

Manual operations


•

• •

•

Turn hex nut 70.75 counterclockwise until the load on hook 70.74 is relieved enough that slow-movement device 70.72 can be removed.

Unscrew M6 screws. Slide manual release disabling device 70.58 as shown by arrow until manual releases 70.07 and 70.13 are disabled. Retighten M6 screws.

70.13 70.58 70.07 M6

70.58 70.07

Operating state of spring operating mechanism after slow opening

Manual release disabling 70.13 Manual TRIP release device Manual CLOSE release



21.5.2003 © ALSTOM

Circuit breaker position indicator shows OPEN, trip spring discharged

48.020.181E/2 18/26



Manual operations


Manual discharge of closing spring The operating mechanism has been made ready fo r manual o p- erations. Verify operating state of circuit breaker and spring operating mechanism


Spring position indicator shows spring charged

Tools required

Place motor limit switch in “closing spring discharged” position


70.71 Closing latch disabling device 71.15 Closing spring discharging device 71.16 Motor limit switch disabling plate 70.58 Manual release disabling plate 1) 1) Required only for a spring operating mechanism equipped with an undervoltage release but no integral disabling feature

•

Using open-end wrench 71.12 (S = 12 mm), turn the square shaft of the spring position indicator counterclockwise.

FK 3-1 shown

71.12 71.16

71.16 Motor limit switch disabling plate

Block motor limit switch in “closing spring discharged” position

21.5.2003 © ALSTOM

•

FK 3-1 shown

71.12 Open-end wrench (S=12)

Using the open-end wrench, turn the shaft until motor limit switch disabling plate 71.16 can be engaged with the motor limit switch bracket and the axis of the motor limit switch lever as shown in the drawing. Blocking the switch in this way prevents the auxiliary switch from rotating back into the starting position.

48.020.181E/2 19/26



Release return stop

Manual operations


•

Unscrew return stop clamp shackle screw 71.13 one turn.

70.98 70.02 FK 3-1 shown

71.13

70.02 Return stop 70.98 Return stop clamp shackle Turn back closing shaft

•

•

71.13 Clamp shackle screw

With the right hand, press crank flywheel 70.30 counterclockwise against the teeth of pinion shaft 70.97. At the same time, using the left thumb, turn motor shaft pinion 70.56 counterclockwise until the clearance between roller 70.28 and closing latch 70.05 is approx. 20-30 mm.

70.28 70.05 FK 3-1 shown

70.56 70.97 70.30 70.05 Closing latch 70.28 Roller 70.30 Crank wheel 21.5.2003 © ALSTOM

70.56 70.97

Pinion Pinion shaft

48.020.181E/2 20/26



Discharge spring

Manual operations


•

•

Turn tie rod 71.08 of closing spring discharging device 71.15 counterclockwise to discharge the closing spring. Crank flywheel 70.30 will turn counterclockwise. Continue turning tie rod 71.08 until closing spring discharging device 71.15 is free and can be withdrawn.

71.15 71.08

71.08 Tie rod

Operating state of spring operating mechanism after manual discharge of closing spring

71.15 Closing spring discharging device

Positions of position indicators The spring operating mechanism now has no stored energy. The indicators stand as shown below.

Spring position indicator shows closing spring discharged

Set return stop

•

•

•

WARNING

21.5.2003 © ALSTOM

•


Tighten clamp shackle screw 71.13 to 5Nm ±10%.

The return stop will not function properly if the clamp shackle screw is not tightened to the specified torque. If the closing spring is being charged with the hand crank under these conditions and the hand crank is let go before the end position is reached, it will turn backwards at high speed. Injury may result. After performing manipulations on the return stop, tighten the clamp shackle mounting screw to a torque of 5 Nm ±10%.

48.020.181E/2 21/26



Manual operations


•

•

CAUTION

Re-enable motor limit switch

21.5.2003 © ALSTOM

•

•

The return stop will not function properly if the clamp shackle screw is not tightened to the specified torque. If the closing spring is being charged by the motor under these conditions and the motor voltage drops out, the closing spring will discharge by turning the gearing backwards. Damage to the operating mechanism may result. After performing manipulations on the return stop, tighten the clamp shackle mounting screw to a torque of 5 Nm ±10%.

Remove motor limit switch disabling plate 71.16 so that the motor limit switch can function again.

48.020.181E/2 22/26



Manual operations


Final steps after manual operations are complete Verify that circuit breaker is OPEN

Remove closing latch disabling device

Remove closing spring discharging device

•

•

•

Before performing the final actions, verify that the circuit breaker is in OPEN position.

If installed (slow closing or opening with closing spring charged), remove closing latch disabling device 70.71.

If closing spring discharging device 71.15 is installed (slow closing or opening with closing spring charged), turn tie rod 71.08 counterclockwise until closing chain 70.26 is under load again and closing spring discharging device 71.15 is free and can be withdrawn.

70.26 71.15 71.08

70.26 Closing chain 71.15 Closing spring discharging device

21.5.2003 © ALSTOM

71.08 Tie rod

48.020.181E/2 23/26



Spring operating mechanisms with undervoltage release

Manual operations


•

Re-enable the undervoltage release.

If

Action

Undervoltage release without disabling feature •

Remove undervoltage release disabling device 71.20.

71.20

Undervoltage release with integral disabling feature Disabling lever in service position •

Turn disabling lever from disabled position to service position.

Disabling lever in disabled position 71.20 Undervoltage release disabling feature

21.5.2003 © ALSTOM

48.020.181E/2 24/26



Manual operations


•

Remove manual release disabling device.

•

70.13 70.58 70.07

•

Manual release disabling feature 70.58 is normally not installed in this version. Unscrew M6 screws and remove manual release disabling device 70.58.

M6

70.58 Manual release disabling device 70.07 Manual CLOSE release 70.13 Manual TRIP release

21.5.2003 © ALSTOM

48.020.181E/2 25/26



Final actions on cabinet

Manual operations


•

•

•

Reinstall side panels 78.01 and roof 78.02. Lay roof on cabinet and align so that dimensions A, B, C, D are within a tolerance of ±1 mm. The cabinet may have to be straightened in order to attain the specified tolerance. Tighten roof mounting screws. After tightening, check dimensions A, B, C, D; correct if necessary.

78.03

78.18

78.02

78.02 Roof 78.18 Roof mounting screws

•

78.03

Frame

Install side panels 78.01. For proper sealing of side panels against cabinet rims, dimension E (side panel to cabinet clearance) must be no greater than 5 mm.

78.01

78.01 Side panel

Restore to service

21.5.2003 © ALSTOM

•

Connect control voltage.

48.020.181E/2 26/26

Maintenance

Instructions on the handling of used SF 6 gas and decomposition decomposition products Presentation

Introduction

These These maintena maintenance nce directi directives ves incorpo incorporate rate mea measur sures es for avoidin avoiding g the thehaz hazard ards s involved in the application of SF 6 gas to switchgear. Such directives are protective measures and recommendations for the user of SF6 switchgear.

Fundamental rules

Instructions for performance of work on SF 6 gas switchgear are given in the appropriate appropriate instruction manuals. Switchgear may only be opened after the preparations for scavenging have been completed. completed.

In this module

This module contains the following following topics : Topic Evacuation of SF 6 gas apparatus Opening--up SF6 gas switchgear Recapitulation of important instructions

03--1999 E ALSTOM

Page 2 3 4

T51--251EN/01 T51--251EN/01 1/4

Maintenance

Instructions on the handling of used SF 6 gas and decomposition decomposition products Evacuation of SF 6 gas apparatus

Principle and precautions

The table below gives the principle of evacuation of SF 6 gas apparatus and precautions precautions to take take : Step 1 2

3

4

03--1999 E ALSTOM

Action Comment De--energize -energize app appara aratus, tus, switchswitch-off where applicable and earth. Conn Connec ectt the the serv servic icin ing g unit unit to the the gas filling nipple by means of a hose and using an adsorber filter. Suck SF6 gas : Where switchgear switchgear with considerconsiderable able decomp decompositi osition on produc products ts is -- Into servicing servicing unit or , involved, exhaust outdoors only -- Afte Afterr havi having ng take taken n the the apappropriate safety precautions, ex- through an adsober filter. haust the gas outdoors (observe the local local regu regula latio tions ns on emisemission). Fill Fill gas gas com compa partm rtmen entt ifif p pos ossi sibl ble e with nitrogen or dry compressed air at rated pressure and subsequently que ntly,, discha discharge rge outd outdoor oors s (if possible through an adsorber filter).

T51--251EN/01 T51--251EN/01 2/4

Maintenance

Instructions on the handling of used SF 6 gas and decomposition decomposition products OpeningOpening -- up SF6 gas switchgear switchgear

Precautions to take

At the time of of the the openin openingg--up -up SF SF6 gas switchgear, take the precautions below : Open--up SF 6 switchgear only after the gas has been evacuated and the S Open--up pressu pressure re insid inside e the appa appara ratus tus has has been been redu reduce ced d to tha thatt of atm atmos osph pher eric ic pres pres-sure. Put the ventilation system in operation or ensure that fresh air circulates in some other manner when switchgear which contains decomposition products is opened (e.g. circuit--breaker).

S

Wear suitable suitable fresh air breathing breathing apparatus if there is even the t he slightest possibility that personnel working on the equipment could be put in danger throu through gh inha inhala latio tion n of haza hazard rdou ous s amo amoun unts ts of gas gas vapo vaporr from from powd powder ery y deco decommposition products. products. S

Wear special overalls when working on opened--up opened--up SF 6 switchgear which contains powdery decomposition products. After completing work remove overalls. S

Avoid Avoid stirringstirring--up -up dust dust and powder powder from SF6 switchg switchgear ear.. Difficu Difficult lt to remove remove dust dust can can be remo remove ved d with with dry dry nonnon--fibro -fibrous us rags rags.. A vacu vacuum um clean cleaner er should should be used used to remov remove e loos loose e dust. dust. Thevacuum Thevacuum clea cleane nerr filter filter shou should ld be able able to retai retains ns particle particles s of a least least 1 min size. size. S

Items (such as rags, vacuum cleaner, throw--away throw--away---overalls, gloves, etc.) whic which h come come in conta contact ct with with the deco decompo mposi sitio tion n prod produc ucts ts must must be coll collec ected ted and and neutral neu tralized ized so so that the dust dust cannot cannot be transfe transferred rred.. Befo Before re getting getting rid of these these items neutralize in a 3 percent soda solution for 24 hours. verify the degree of neutralization after 24 hours. When soda is added, no bubbles should be result. If there are bubbles repeat the neutralization. S

Under all circumstances circumstances ensure that the decomposition products products neither come in contact with skin, eyes, clothes, nor that they are swallowed or inhaled. haled. Pay special special atten attention tion to cleanlin cleanliness ess of bod body y, clothes clothes and workwork--bench. -bench. Dust or powder that comes in contact with skin must be washed away with plenty of water. It is advisable to wash face, neck, arms and hands with soap and plenty of water before work--breaks and after stoppage of work. S

Avoid Avoid eating, drinking, smoking or storing eatables eatables in rooms or outdoors outdoors near near to open opened ed SF6 switchgear switchgear which may contain arc--decomposed powder. powder. S

03--1999 E ALSTOM

T51--251EN/01 T51--251EN/01 3/4

Maintenance

Instructions on the handling of used SF 6 gas and decomposition decomposition products Recapitulation Recapitulation of important important instructions instructions

Reminder

Pure, non--contaminated SF6 gas is non--poisonous. Electrical discharges and faultfault--switc -switchin hing g arcs will give rise to differe different nt grades grades of poison poisonous ous decomdecomposition products. In small amounts gaseous decomposition products produce --- within seconds and before any poisonous poisonous effects can take place --warning symptoms, such as an unpleasant piercing odor, nasal, mouth and eye irritations, which enable working personnel to withdraw to safety. Solid decomposition products (powdery residues from switching) can cause skin irritatio irritations. ns. SF6 is abou aboutt five five times times heav heavierthan ierthan air air, and and in theabsenc theabsence e of turbu turbu-lence, results in the gas collecting just above ground level and causing suffocation through a deficiency of oxygen.

Important instructions

The table below recapitulates the important instructions to follow at the time of handling of used SF 6 gas and decomposition decomposition products products : No. 1

2

3

4

5

6

7

8

03--1999 E ALSTOM

Instruction As soon soon as an unpl unplea easa sant, nt, pierci piercing ng odor odor from from deco decomp mpos ositi ition on products becomes perceptible leave the substation room without out dela delay y. enter enter the room room only only after after tho thoro roug ugh h venti ventila latio tion n or when when wearing wearing suitable oxygen oxygen breathing breathing masks (with filtering or fresh air device). Afterr distu Afte disturb rban ance ces, s, enter enter the subs substati tation on room room only only afte afterr havi having ng thoroug thoroughly hly aired aired the room room or when when wearing wearingind indepe epende ndent nt of ambiambient--air ope operati rating ng oxygen oxygen breathin breathing g masks, masks, or alterna alternative tively ly,, after verifying by measurement that the ambient air contains at least 17% volume of oxygen, especially especially if, one has to reckon with the concentration of SF 6 in hazardous amounts. Enter Enter rooms rooms loca located ted belo below w, and and conn connec ected ted with with the subs substati tationon-rooms after thorough ventilation only, or when wearing oxygen breathi breathing ng masks masks which which ope operate rate indepe independe ndent nt of the amb ambien ientt--air -air,, or alternatively, after having verified by measurement that the ambient air contains at least 17% volume of oxygen. Ensu Ensure re tha thatt the the room room venti ventila latio tion n opera operates tes satis satisfac factor torily ily,, whi whilst lst maintenance work is being performed on SF 6 switchgear (discharging charging and filling f illing of gas, opening opening and cleaning of equipment). equipment). Whe Wh en worki rking on opened SF 6 switchgear protect skin against conta contact ct with with gas gas and and avoi avoid d swal swallo lowi wing ng or inha inhalin ling g of gas. gas. Ensu Ensure re body bod y, clothin clothing g and workwork--bench -bench cleanl cleanline iness. ss. Wea Wearr special special workwork-overalls and after completion of work discard latter. Wash ash skin skin whic which h comes comes in conta contact ct with with powd powder er depo deposit sits s with with plenty of water. Before work--breaks and after work wash face, neck neck,, arms arms and and hand hands s tho thorou rough ghly ly with with soap soap and plen plenty ty of water water.. Do not not stirstir--up -up powd powder er depo deposit sits s res resul ultin ting g from from arcarc--switch -switchin ing. g. Remove Remove sticky powder powder with dry rags. rags. Use suitable suitable vacuum vacuum cleaner with paper--filter to remove loose powder. Discard used items items and and filterfilter--bags -bags in such such a ma mann nner er tha thatt powd powder er depo deposit sit does does not spread. Before discarding neutralize used items. Avoid void eati eating ng,, drin drinki kingand ngand stor storin ing g eata eatabl bles es inrooms inrooms with with open opened ed SF6 switchgear which contains powder deposits.

T51--251EN/01 T51--251EN/01 4/4


3 01 1 Circuit Break. GL314 Installation Manual

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