REG 216_B520

DIgSILENT Technical Documentation

ABB REG 216 PowerFactory V001 Relay model description

DIgSILENT GmbH Heinrich-Hertz-Strasse 9 D-72810 Gomaringen Tel.: +49 7072 9168 - 0 Fax: +49 7072 9168- 88 http://www.digsilent.de e-mail: [email protected]

ABB REG 216 21 6 PowerFactory V001Relay model description description Published by DIgSILENT GmbH, Germany Copyright 2010. All rights reserved. Unauthorised copying or publishing of this or any part of this document is prohibited. doc.TechRef, doc.TechRef, Build 520 18 Juli 2011

Table of Contents

Table of Contents 1 MODEL GENERAL DESCRIPTION ....................................................... ............................................................. ....... 5

1.1 MEASUREMENT AND ACQUISITION ................................................................................................................................ 5 1.1.1 Available Units ............................................................................................................................................................ 5 1.1.2 Functionality ............................................................................................................................................................... 5 1.1.3 Data Input .................................................................................................................................................................. 5 1.2 OUTPUT LOGIC ............................................................................................................................................................. 6 1.2.1 Available Units ............................................................................................................................................................ 6 1.2.2 Functionality ............................................................................................................................................................... 6 1.3 REG 216 OVERCURRENT (F50/51) SUBRELAY .................................................................................................................. 6 1.3.1 Available Units ............................................................................................................................................................ 6 1.3.2 Functionality ............................................................................................................................................................... 7 1.3.3 Data input .................................................................................................................................................................. 7 1.4 REG 216 VOLTAGE ELEMENTS (F27/59) SUBRELAY ......................................................................................................... 8 1.4.1 Available Units ............................................................................................................................................................ 8 1.4.2 Functionality ............................................................................................................................................................... 8 1.5 REG 216 FREQUENCY (F81) SUBRELAY ........................................................................................................................... 9 1.5.1 Available Units ............................................................................................................................................................ 9 1.5.2 Functionality ............................................................................................................................................................... 9 1.6 REG 216 REVERSE POWER (F32) SUBRELAY ................................................................................................................... 9 1.6.1 Available Units ............................................................................................................................................................ 9 1.6.2 Functionality ............................................................................................................................................................... 9 1.7 REG 216 DIFFERENTIAL (F87) SUBRELAY ..................................................................................................................... 10 1.7.1 Available Units .......................................................................................................................................................... 10 1.7.2 Functionality ............................................................................................................................................................. 10 1.7.3 Data input ................................................................................................................................................................ 10 1.8 REG 216 UNDERIMPEDANCE (F21) SUBRELAY ............................................................................................................... 10 1.8.1 Available Units .......................................................................................................................................................... 10 1.8.2 Functionality ............................................................................................................................................................. 11 1.8.3 Data input ................................................................................................................................................................ 11 1.9 REG 216 UNDEREACTANCE (F40) SUBRELAY................................................................................................................. 11 1.9.1 Available Units .......................................................................................................................................................... 11 1.9.2 Functionality ............................................................................................................................................................. 12 1.9.3 Data input ................................................................................................................................................................ 12 1.10 REG 216 POLE SLIP (F78) SUBRELAY .......................................................................................................................... 12 1.10.1 Available Units ........................................................................................................................................................ 12 1.10.2 Functionality ........................................................................................................................................................... 12 1.10.3 Data Input .............................................................................................................................................................. 13 2 RELAY NOT SUPPORTED FEATURES............................................................ ........................................................ 14 3 MODEL SCHEMES .......................................................... ........................................................... ........................... 15

3.1 MAIN RELAY ................................................................................................................................................................ 15 3.2 OVERCURRENT ............................................................................................................................................................ 16 3.3 VOLTAGE .................................................................................................................................................................... 17

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Power Factory V001 Relay model description

3

3.4 FREQUENCY ................................................................................................................................................................ 18 3.5 REVERSE POWER ......................................................................................................................................................... 19 3.6 DIFFERENTIAL............................................................................................................................................................. 20 3.7 UNDERIMPEDANCE ...................................................................................................................................................... 21 3.8 UNDERREACTANCE ...................................................................................................................................................... 22 3.9 POLE SLIP ................................................................................................................................................................... 23 4 REFERENCES ....................................................... ........................................................... ..................................... 24

1 Model general description The ABB REG 216 is a modular relay and the number and the type of the protective functions can be defined by the customer by configuring the relay software. The ABB REG 216 PowerFactory relay model has been implemented trying to mock up the more common protective functions used in a typical large generator protection scheme. The ABB REG 216 PowerFactory relay model consists of a main relay model and 8 subrelays: -

REG 216 overcurrent (F50/51)

-

REG 216 voltage elements (F27/59)

-

REG 216 frequency (F81)

-

REG 216 reverse power (F32)

-

REG 216 differential (F87)

-

REG 216 underimpedance (F21)

-

REG 216 underreactance (F40)

-

REG 216 Pole slip

The main relay contains the measurement and acquisition units, the output logic and all other subrelays:

1.1 Measurement and acquisition 1.1.1 Available Units The voltage and the current are measured by two current transformers (“Ct” and “Neutral Ct” blocks) and one voltage transformer (”Vt” block). Two additional current transformers are used by the differential elements: the “Remote Ct” block represents the Cts located at the generator/motor ground terminals. The “Remote Ct Transf” block represents the Cts located at the CSU transformer terminals.

Six measurement units (“Measure” , “Delta Measure” , “Measurement Seq”, “Meas Neutral I”, “Remote Measurement” and “Remote Measurement Transf ” blocks) are fed by these CTs and the VT.

1.1.2 Functionality The input signals are sampled at 12 samples/cycle; a DFT filter operating over a cycle calculates then the voltage and current values used by the protective elements.

1.1.3 Data Input Please note that the nominal current and the nominal voltage values MUST be entered in all the measurement units.

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5

1.2 Output logic 1.2.1 Available Units The output logic is implemented by the “Logic” block.

1.2.2 Functionality This block is operating the breaker. Please disable the “Logic” block to disable the relay model ability to open the power circuit. The signal operating the breaker is “yout”. Eleven additional output signals (“OUT1”… “OUT11”) freely configurable are available.

1.3 REG 216 Overcurrent (F50/51) subrelay 1.3.1 Available Units 

Three 3 phase definite time overcurrent elements (“3ph Current DT 1”, “3ph Current DT 2” and “3ph Current DT 3” block)



Three ground current definite time overcurrent elements (“3I0 Current DT 1”, “3I0 Current DT 2” and “3I0 Current DT 3” block)



Three 3 phase definite time directional overcurrent elements (“3ph DirCurrent DT 1”, “3ph DirCurrent DT 1 angle”, “3ph DirCurrent DT 2”, “3ph DirCurrent DT 2 angle”, “3ph DirCurrent DT 3” and “3ph DirCurrent DT 3 angle” block)



Three ground current definite time directional overcurrent elements (“3I0 DirCurrent DT 1”, “3I0 DirCurrent DT 1 angle”, “3I0 DirCurrent DT 2”, “3I0 DirCurrent DT 2 angle” ,“3I0 DirCurrent DT 3” and ,“3I0 DirCurrent DT 3 angle” block)



Three neutral current definite time directional overcurrent elements (“IN DirCurrent DT 1”, “IN DirCurrent DT 1 angle”, “IN DirCurrent DT 2”, “IN DirCurrent DT 2 angle” ,“IN DirCurrent DT 3” and ,“IN DirCurrent DT 3 angle” block)



Two 3 phase inverse time directional overcurrent elements (“3ph DirCurrent Inv 1”, “3ph DirCurrent Inv6 1 angle”, “3ph DirCurrent Inv 2” and “3ph DirCurrent Inv 2 angle” block)



Two ground current inverse time directional overcurrent elements (“3I0 DirCurrent Inv 1”, “3I0 DirCurrent Inv 1 angle”, “3I0 DirCurrent Inv 2” and “3I0 DirCurrent Inv 2 angle” block)



Two neutral current inverse time directional overcurrent elements (“IN DirCurrent Inv 1”, “IN DirCurrent Inv 1 angle”, “IN DirCurrent Inv 2” and “IN DirCurrent Inv 2 angle” block)

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6



One phase current peak value time defined element with frequency block (“3ph Current-Inst” and “3ph Current-Inst Frequency limit” block)



One ground current peak value time defined element with frequency block (“3I0 Current-Inst” and “3I0 Current-Inst Frequency limit” block)



One neutral current peak value ti me defined element with frequency block (“IN Current-Inst” and “IN Current-Inst Frequency limit” block)



Two negative sequence inverse time overcurrent elements (“NPS-Inv 1” and “NPS-Inv 2” block)



Two negative sequence time defined overcurrent elements (“NPS-DT 1” and “NPS-DT 2” block)



Two phase undercurrent elements(“3ph Current DT MIN 1” and “3ph Current DT MIN 2” block)



One stator overload element (“OLoad-Stator”, “OLoad-Stator IB”, “tmax”, “tmin”, and “tg” block)



One voltage restrained/controlled element (“V dep OC I>” and “V restraint” block). To select which voltage logic is enabled, the restraint factor (“ V Dep OC k Set variable) and the restraint voltage levels (“ V Dep OC V<1Set” and “ V ”

value derived from the phase voltages or the value measured by the open delta VT) is used can be set in the “logic” tab page of the “VPol Measured or Derived” block.

1.3.2 Functionality The model contains a full choice of phase, zero sequence (“Holmgreen’s connection internally calculated), and neutral current overcurrent elements. There is a set of directional and a set of no directional elements. There is one instantaneous (peak) phase element, one instantaneous (peak) zero element sequence, one instantaneous neutral element which can be set to be blocked when the frequency is falling below a given threshold. The inverse time overcurrent elements support the following trip characteristics: 

“IEC extremely inverse”



“IEC very inverse”

 

”IEC inverse” “Long time earth fault” (neutral and ground current elements only)

1.3.3 Data input To configure the “OLoad-Stator” protective functions please insert: 

The relay “IB” setting in the “OLoad-Stator IB” block in the “Logic” tab page.



The relay “I-Start” setting in the “Oload-Stator” block as “Current setting”.



The relay “k1-Setting” setting in the “Oload-Stator” block as “Time dial”.



The relay “t-min” setting in the “tmin” block as “Time setting”.



The relay “t-max” setting in the “tmax” block as “Time setting”.



The relay “tg” setting in the “tg” block as “Time setting”.

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7

To configure the “Voltage controlled Overcurrent” protective functions please insert: 

The relay “Current” setting in the “I>Ucontrol Current” block as “Current setting”.



The relay “Delay” setting in the “I>Ucontrol Delay” block as “Time setting”.



The relay “Hold- Voltage” setting in the “I>Ucontrol Voltage” block as “Voltage”.



The relay “Hold-Time” setting in the “I>Ucontrol HoldTime” block as “Time setting”.

1.4 REG 216 Voltage elements (F27/59) subrelay 1.4.1 Available Units



Two phase-ground time defined undervoltage elements (“27P 1” and “27P 2”, “27P 1Inst” and “27P 2 Inst” block)



Two phase-phase time defined undervoltage elements (“27PP 1” and “27PP 2” , “27PP 1 Inst” and “27PP 2 Inst” block)



Two phase-ground time defined overvoltage elements (“59P 1” and “59P 2”, “59P 1 Inst” and “59P 2 Inst” block)



Two phase-phase time defined overvoltage elements (“59PP 1” and “59PP 2”, “59PP 1 Inst” and “59PP 2 Inst” block)



Two zero sequence time defined overvoltage elements (“59G 1” and “59G 2”, “59G 1 Inst” and “59G 2 Inst” block)



Two negative sequence time defined overvoltage elements (“59Q 1” and “59Q 2”, “59Q 1 Inst” and “59Q 2 Inst” block)



Two positive sequence time defined overvoltage elements (“59V1 1” and “59V1 2”, “59V1 1 Inst” and “59V1 2 Inst” block)



Two positive sequence time defined undervoltage elements (“27V1 1” and “27V1 2”, “27V1 1 Inst” and “27V1 2 Inst” block)

1.4.2 Functionality

The more common over/undervoltage protection elements have been implemented. For each protective element two blocks are available: one fed by the voltage RMS values, one fed by the voltage instantaneous values. Please notice that the protective elements fed by the voltage instantaneous values must be used only for the EMT simulations.

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8

1.5 REG 216 Frequency (F81) subrelay 1.5.1 Available Units 

Four over/under frequency elements with voltage restraint (“Frequency 1”, “Frequency 2, “Frequency 3” and “Frequency 4” block, for the voltage restraint: “Block Voltage 1”, “Block Voltage 2”, “Block Voltage 3” and “Block Voltage 4” block)



Four rate of change of frequency elements with frequency and voltage restraint(“dfdt1”, “dfdt2”, “dfdt3” and “dfdt4” block, for the voltage restraint: “Block Voltage dfdt 1”, “Block Voltage dfdt “, “Block Voltage dfdt 3” and “Block Voltage dfdt 4”, for the frequency restraint: “dfdt Frequency block 1”, “dfdt Frequency block 2”, “dfdt Frequency block 3” and “dfdt Frequency block 4”)



Two over fluxing elements with inverse characteristic (“U/F inv1” and “U/F inv1” block, the U/f value is calculated by the “ V/Hz calculator” block )

1.5.2 Functionality The restraint logic of the change of frequency elements can be customized using the equation present in the “Logic” tab page of the “dfdt1logic”, “dfdt3logic”, ”dfdt3logic” and “dfdt4logic” block. Please notice that in such equation the “win1” input is coming from the voltage restraint block (“Block Voltage dfdt x” with x = 1,2,3,4) and the “win2” input is coming from the frequency restraint block (“dfdt Frequency block x” with x = 1,2,3,4)

1.6 REG 216 Reverse power (F32) subrelay 1.6.1 Available Units   

Two active underpower elements (“32P1” and “32P2” block) One output block opening the associated breaker (“Output logic” block) One block calculating the active power (“Power Calculator” block)

1.6.2 Functionality The subrelay implements two elements tripping when the active power is smaller than the given thresholds.

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9

1.7 REG 216 Differential (F87) subrelay 1.7.1 Available Units 

One transformer differential element with up to three 3ph current inputs (“Transformer Differential” and “Winding 1 Adapter”, “Winding 2 Adapter”, “Winding 3 Adapter” block).



One generator differential element (“Generator differential” block )

1.7.2 Functionality The transformer differential feature has a current restraint threshold and an unrestraint threshold (“Differential currentbase threshold” and “Unrestrained differential threshold” setting in the “Transformer differential” block). The 2nd harmonic blocking is available as well (“Harmonic blocking” tab page). Please notice that in the provided relay scheme only two sets of 3ph current inputs are connected. The relay ability to adapt the CT ratio and connection type can be mocked using the “Winding 1 Adapter”, “Winding 2 Adapter”, “Winding 3 Adapter” block.

1.7.3 Data input Please notice that that the “a1”, “a2” and the “a3” relay settings cannot be inserted directly but they must be converted in terms of “Current transformer ratio” and “Terminal Line-Line Voltage” to insert inside the “Winding 1 Adapter”, “Winding 2 Adapter”, “Winding 3 Adapter” block. Inside the same block the “s1”, “s2” and the “s3” relay settings can be inserted directly as “Current transformer connection”.

1.8 REG 216 Underimpedance (F21) subrelay 1.8.1 Available Units 

Two under impedance elements (“Underimpedance 1” and “Underimpedance 2” block).



Two timers (“Underimpedance 1 Delay” and “Underimpedance 2 Delay” block)



One polarizing block (“Polarizing” block)



One minimum current supervision element (“Sup IN” block)



One output block opening the associated breaker (“Output logic” block)

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10

1.8.2 Functionality The subrelay implements two circular (in the R -X diagram) operating characteristics centred in the axis origin with adjustable time delay and three phase measurement. T N E L I S g I

[sec.Ohm]

D

2,80 2,40 2,00 1,60 1,20 0,80 0,40 -5,20 -4,80 -4,40 -4,00 -3,60 -3,20 -2,80 -2,40 -2,00 -1,60 -1,20 -0,80 -0,40

0,40 0,80 1,20 1,60 2,00 2,40 2,80 3,20 3,60 4,00

[sec.Ohm]

-0,40 -0,80 -1,20 -1,60 -2,00 -2,40 -2,80 -3,20 -3,60 -4,00 S1\Cub_2\ABB REG 216

1.8.3 Data input Please notice that in the underimpedance elements the impedance value (“Z-Setting” setting) must be inserted in secondary Ohm instead of pu (“UN/IN”). For this reason a very large secondary Ohm range has been set. No user input is required is the “Polarizing” , in the “Sup IN” and in the “Output Logic” block.

1.9 REG 216 Undereactance (F40) subrelay 1.9.1 Available Units 

Two under impedance elements (“Underreactance 1” and “Underreactance 2” block).



Two timers (“Underreactance 1 Delay” and “Underreactance 2 Delay” block)



One polarizing block (“Polarizing” block)



One minimum current supervision element (“Sup IN” block)




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11

1.9.2 Functionality The subrelay implements two circular (in the R -X diagram) operating characteristics with selectable impedance offset, adjustable time delay and three p hase measurement. T N E L I S g I

[sec.Ohm] -4,40 -4,00 -3,60 -3,20 -2,80 -2,40 -2,00 -1,60 -1,20 -0,80 -0,40

D

0,40 0,80 1,20 1,60 2,00 2,40 2,80 3,20 3,60 4,00 4,40 4,80

[sec.Ohm]

-0,40 -0,80 -1,20 -1,60 -2,00 -2,40 -2,80 -3,20 -3,60 -4,00 -4,40 -4,80 -5,20 -5,60 -6,00 -6,40 -6,80 S1\Cub_2\ABB REG 216

1.9.3 Data input Please notice that in the underreactance elements the “Replica impedance” and the “offset impedance” impedance values must be calculated from the relay “XA -Setting” and “XB-Setting” setting value and must be inserted in secondary Ohm instead of pu (“UN/IN”). For this reason very large secondary Ohm ranges have been set. No user input is required is the “Polarizing”, in the “Sup IN” and in the “Output Logic” block.

1.10 REG 216 Pole slip (F78) subrelay 1.10.1 Available Units 

Three blinders mocking up the slip lines (“Za”, “ZB” and ZC” block)



One OOS element (“Out Of Step Outer-Inner” block)



One timer to delay the OOS trip (“OOS PickUp Delay” block )



One minimum current supervision element (“I supervision” block)




1.10.2 Functionality This subrelay implements a simplified model of the OOS logic present in the relay; the simplified model consists of two slip zones and the OOS logic where the number of slips can be entered. No “WarnAngle”, “TripAngle” or “t-Reset” setting is available in the model.

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12

1.10.3 Data Input The “ZA”, “ZB”, “ZC” relay settings must be entered in the “ZA”, “ZB”, “ZC” model block as “Reactance” setting. The relay “phi” angle setting is the “Relay angle” setting. Please notice that “Relay angle” must be “phi”+ 90°. The number of slip is the “OOS, No. of crossing” in the “ Out Of Step Outer-Inner” model block . No user input is required is the “Polarizing” and in the “I supervision” block.

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13

2 Relay not supported features The following features are not supported:             

Transformer differential: “g-High”, “Inrush Time” Rotor overload function Single phase trip Check synchronization functions. Circuit breaker failure protection. 100% stator earth fault protection (3rd harmonic method) (27TN/59TN) 100% stator earth fault protection (low frequency injection method) (64S) Thermal element alarm thresholds Negative sequence thermal element minimum & maximum tripping time Dead machine Active overpower Reactive over and underpower Sensitive earth fault protection for ungrounded system and system with Petersen coil

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14

3.5 Reverse power T N E L I

REG 216 reverse power (F32) scheme:

S g I

D

d w f w 0

s b a I

1

* 1 c o P I l 2 3 e R 0

0

1

Ir_A;Ii_A;Ir_B;Ii_B;Ir_C;Ii_C Ur_A;Ui_A;Ur_B;Ui_B;Ur_C;Ui_C

1 s _ y

0

1 0

2

Unom

Power Calculator RelLogdip 1

yout

Q

0

2

0

Output logic RelLogdip 1

1

yout(1)

_32P2T

0

1

d w f w 0

1

* 2 c o P I l 2 3 e R 0

1 t u o y

1 s _ y

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19

3.6 Differential T N E L I S g I

REG 216 differential scheme:

D

0

0

1

1

Winding1 Ada.. RelCtadapt

2

ICT1_A;ICT1_B;ICT1_C;IrCT1_A;IrCT1_B;IrC

0

2

Harm2ICT1_A;Harm2ICT1_B;Harm2ICT1_1

wIr_A;wIi_A;wIr_B;wIi_B;wIr_C;wIi_C

1

Measure1 - 2.. RelMeasure

3 4

wIabs_A;wIabs_B;wIabs_C1 wIr_A;wIi_A;wIr_B;wIi_B;wIr_C;wIi_1

1 2 Winding2 Ada.. RelCtadapt

5 6

C _ C i I _ s w ; b C a _ I r w I ; w B ; _ B s i_ b I a I w ; w B ; A r_ _ I s w b ; wIabs_A;wIabs_B;wIabs_C2 a A I i_ w I

wIr_A;wIi_A;wIr_B;wIi_B;wIr_C;wIi_2 w ; A r_ I

w

ytrdif

0

0

0

Harm2ICT1_A;Harm2ICT1_B;Harm2ICT1_C

2

Transformer Differential RelBiasidiff Harm2ICT2_A;Harm2ICT2_B;Harm2ICT2_C

3

Measure2 - 2.. RelMeasure 1

wIr_A;wIr_B;wIr_C

Diff RMSMeas.. RelMeasure

0 1 2 Winding 3 Adapter RelCtadapt

ICT3_A;ICT3_B;ICT3_C;IrCT3_A;IrCT3_B;IrC

Trip logic RelLogdip 4

yout

5 6

Harm2ICT3_A;Harm2ICT3_B;Harm2ICT3_C Measure 3 - 2nd Harmonic RelMeasure

Idiffabs_A;Idiffabs_B;Idiffabs_C

0 1

ygendiff

0

1

2 3

7 8

4

Generator Diff erential RelBiasidiff wIr_A;wIr_B;wIr_C;wIi_A;wIi_B;wIi_C Diff RMSMeas.. 1 RelMeasure

Idiff..

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20

3.7 Underimpedance T N E L I S g I

REG 216 underimpedance (F21) scheme:

D

wsup Sup IN RelIoc* U

0 wsupadd

n d R e

1

e

ri lD m

2

C _ s b a I ; B _ s b a I ; A _ s b a I

0 1

dummy dummy wtimer

wIr_A;wIi_A;wIr_B;wIi_B;wIr_C;wIi_C wUr_A;wUi_A;wUr_B;wUi_B;wUr_C;wUi_C

0 1 0

Polarizing 1 RelZpol* 2 3 2

i_ p o i_ I ; p C o r_ U ; p C o _ I ; r p B o i_ U ; p B o i_ I ; p B o r_ U ; p B o r_ I ; p Upolr_A;Upoli_A;Upolr_B;Upoli_B;Upolr_C;Upoli_C A o _ U i ; dummy p A o _ I ; i p A o r_ U ; p A o r_ I p o U

4

o

p

3

is e d

0

a h n

y1

0

0

Underimpedanc.. RelTimer c

* e 1

5

wands

1

1

Tdelay

6

Output logic RelLogic

n d R e

1

e ri lD

m

2

dummy dummy wtimer

4

o

p

3

is

5

yout

U

0 wsupadd

A B B R E G 2 1 6

wstart

m

e

wstart(1)

m d *

a h 2

e

c

n

0

y2

0

1

Underimpedance 2 Delay RelTimer wands

1

1

Tdelay

6


21

3.8 Underreactance T N E L I S g I

REG 216 underreactance (F40) scheme:

D

Sup IN RelIoc*

p u s w

0 1

wIr_A;wIi_A;wIr_B;wIi_B;wIr_C;wIi_C . . _ a I

s wUr_A;wUi_A;wUr_B;wUi_B;wUr_C;wUi_C b

U

0 0 1

wsupadd

0

Polarizing 1 RelZpol* 2

Iopr_A;Iopi_A;Iopr_B;Iopi_B;Iopr_C;Iopi_

Uopr_A;Uopi_A;Uopr_B;Uopi_B;Uopr_C;Uopi_ Upolr_A;Upoli_A;Upolr_B;Upoli_B;Upolr_C;

3

n R

d e

1

e rr lD e

2 3

is

4

o

a

wstart c

m ta h

0

n

0

y1

0

Underreactanc.. RelTimer c

* e 1

5

wands

1

1

6

Tdelay

2

Output logic RelLogic U

0 wsupadd

n R

d e

1

e rr lD e

2 3

is

4

o

5

yout

a c

wstart(1)

m *

ta h

0

n

0

y2

1

Underreactanc.. RelTimer c e 2

wands

1

1

6

Tdelay1

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22

3.9 Pole slip T N E L I S g I

REG 216 Pole slip:

D

0 1 2

ZA RelDismho*

0 1

y_A;y_B;y_C

wsup_A;wsup_B;wsup_C 3

0 1 2

wIr_A;wIi_A;wIr_B;wIi_B;w.. wI0x3r;wI0x3i wUr_A;wUi_A;wUr_B;wUi_B;w..

C B C A B i_ A r_ _ p i r o _ I p o U

0

ZB RelDisbl*

2

0

3

3 4

iblock

1

1

Polarizing Ph-Ph 1 RelZpol* 2

Iabs_A;Iabs_B;Iabs_C

0 1

t u o y o h m r e t u o

0

2 wsup_A;wsup_B;wsup_C 3

Tmemory

wsupadd I supervision RelIoc

t u o y r e d n i l b r e n n i

Upolr_A;Upoli_A;Upolr_B;Upoli_B;Upolr_C;Upoli_C

0 1 2

outerblinderyout ZC RelDismho*

0 1

0

Logic outer-inner RelLogdip*

0

2

1

3

1

outerzonetrip innerzonetrip

wsup_A;wsup_B;wsup_C 3

0

0 1

Out Of Step Outer-Inner 1 2 RelDispspoly* 2

Z1block Z2block Z3toZ5block

0 1 2

3

wstart

0

OOS PickUp Delay RelTimer 1

y1

0

Logic RelLogdip* y2

A B B R E G 2 1 6


yout

3

1

23

4 References

The model implementation has been based on the information available in the “REG216, REG216 Compact REC216 Numerical Generator Protection Numerical Control Unit Operating Instructions 1MDU02005-EN/3/Rev. 1 Edition March 2001” document.

A B B R E G 2 1 6


24

REG 216_B520

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