OLTC operation

EASUN MR

WELCOMES YOU ALL

FOR OLTC PRESENTATION

Easu Easun n - MR (EM (EMR) R)

"EMR, is an Indo-German Joint Venture with "Maschinenfabrik Reinhausen GmbH, Germany (MR)" and the "Easun Group" of India. Easun - MR's factory factory is equipped equipped with with state-of-art state-of-art infrastructural facilities to cater to the precision manufacturing requirements of its final product "On Load Loa d Tap Changer (OLTC)" used in the transformer industry.

Global

Partner

Maschinenfabrik Reinhausen GmbH, (MR), Germany, the Joint Venture partner in EMR are the technology leaders in Voltage regulation equipment and caters to the requirements of the Power Segment World Wide.

MR is committed in the Joint Venture of EMR in India and is fully involved in the enterprise both technically and financially.

inds K inds

of OLTC

TYPE M

TYPE D

TYPE V

TYPE A

Drive

Mechanism MA2

Step by Step operation is by SNAP action switch. Revolution per tap change = 33 revolutions.

Drive

Mechanism MA9

Step by Step operation is by CAM switch. Revolution per tap change = 30 revolutions.

Bevel Gear

G-7

TYPE

VARIANT

RATIO

G-7/1

G-7/2

1:1 2:1 4:1

G-8

G-8/1

G-8/2

1:1 2:1 4:1

PROTECTIVE RELAY-RS2001

Oil Surge Relay RS 2001

OIL SURGE RELAY (OSR) Trips at Velocity of 0.8m/sec

How to read the specification of

OLTC

Linear

Reversal(W)

Coarse Fine(G)

TYPE M

Current Rating up to 600 Amps with 3-pole & up to 1800 Amps with 1-pole. Voltage Class up to 300 kV Class catering up to 440 kV transformers. Both Star & Delta applications applications are available. Step Voltage is 3300 Volts. Seperate Diverter & Selector Model. Bi-directional Bi-directional Power Flow. Very compact dimensional arrangement. Linear version is available up to 18 positions. Up to 35 Positions are available with pre-Selector pre-Selector Arrangement.

TYPE M

TOP DRIVE UNIT Drive

shaft

ASSEMBLER POSITION

DRIVE

SHAFT

ASSEMBLER POSITION RIGHT

Anticlock-RAISE

LEFT

Clockwise-RAISE

IF MA-2=16.5 rev/tap for M type without DM If MA-9=1 rev/tap for M type without DM

Exploded view of

Type M

Functional Diagram of M type OLTC

Transition Sequence of Diverter Switch

1

3 5 7 9 11

Output

2 4 6 8 10 12


1

3 5 7 9 11

Output

2 4 6 8 10 12


1

3 5 7 9 11

Output

2 4 6 8 10 12


1

3 5 7 9 11

Output

2 4 6 8 10 12


1

3 5 7 9 11

Output

2 4 6 8 10 12


1

3 5 7 9 11

Output

2 4 6 8 10 12


1

3 5 7 9 11

Output

2 4 6 8 10 12


1

3 5 7 9 11

Output

2 4 6 8 10 12


1

3 5 7 9 11

Output

2 4 6 8 10 12


1

3 5 7 9 11

Output

2 4 6 8 10 12


1

3 5 7 9 11

Output

2 4 6 8 10 12


1

3 5 7 9 11

Output

2 4 6 8 10 12


1

3 5 7 9 11

Output

2 4 6 8 10 12


1

3 5 7 9 11

Output

2 4 6 8 10 12


1

3 5 7 9 11

Output

2 4 6 8 10 12


1

3 5 7 9 11

Output

2 4 6 8 10 12


1

3 5 7 9 11

Output

2 4 6 8 10 12


1

3 5 7 9 11

Output

2 4 6 8 10 12


1

3 5 7 9 11

Output

2 4 6 8 10 12


1

3 5 7 9 11

Output

2 4 6 8 10 12


1

3 5 7 9 11

Output

2 4 6 8 10 12


1

3 5 7 9 11

Output

2 4 6 8 10 12


1

3 5 7 9 11

Output

2 4 6 8 10 12


1

3 5 7 9 11

Output

2 4 6 8 10 12


1

3 5 7 9 11

Output

2 4 6 8 10 12


1

3 5 7 9 11

Output

2 4 6 8 10 12


1

3 5 7 9 11

Output

2 4 6 8 10 12


1

3 5 7 9 11

Output

2 4 6 8 10 12


1

3 5 7 9 11

Output

2 4 6 8 10 12

Measuring of Transition Resistance

TYPE-D

Type

D

Current Rating up to 500 Amps with 3-pole & up to 1500 Amps with 1pole. Voltage Class up to 220 kV Class. Both Star & Delta applications are available. Step Voltage is 2500 Volts. Seperate Diverter & Selector Model. Bi-directional Power Flow. Linear version is available up to 18 positions. Up to 35 Positions are available with pre-Selector Arrangement.

G-8

2 1

OLTC operation

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