oltc operation

YOU ALL

EASUN MR

WELCOMES

FOR OLTC PRESENTATION

Easun - MR (EMR)

"EMR, is an Indo-German Joint Venture with "Maschinenfabrik Reinhausen GmbH, Germany (MR)" and the "Easun Group" of India.

Easun - MR's factory is equipped with state-of-art infrastructural facilities to cater to the precision manufacturing requirements of its final product "On Load 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.

Kinds 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 G-8

G-7/1 G-7/2 G-8/1 G-8/2

1:12:14:1

1:12:14:1

VARIANT

TYPE

RATIO

Oil Surge Relay RS 2001

PROTECTIVE RELAY-RS2001

OIL SURGE RELAY(OSR)

Trips at Velocity of 0.8m/sec

How to

read the specification

of

OLTC

Linear Reversal(W) Coarse Fine(G)

•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 are available. •Step Voltage is 3300 Volts.

•Seperate Diverter & Selector Model. •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 Arrangement.

TYPE M

TYPE M

Drive shaft

ASSEMBLER POSITION

ASSEMBLERPOSITION

DRIVESHAFT

TOP DRIVE UNIT

RIGHT LEFTAnticlock-RAISE Clockwise-RAISE

IF MA-2=16.5 rev/tap for M type without DMIf 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

13579

11

2468

1012

Output

Transition Sequence of Diverter Switch

13579

11

2468

1012

Output

Transition Sequence of Diverter Switch

13579

11

2468

1012

Output

Transition Sequence of Diverter Switch

13579

11

2468

1012

Output

Transition Sequence of Diverter Switch

13579

11

2468

1012

Output

Transition Sequence of Diverter Switch

13579

11

2468

1012

Output

Transition Sequence of Diverter Switch

13579

11

2468

1012

Output

Transition Sequence of Diverter Switch

13579

11

2468

1012

Output

Transition Sequence of Diverter Switch

13579

11

2468

1012

Output

Transition Sequence of Diverter Switch

13579

11

2468

1012

Output

Transition Sequence of Diverter Switch

13579

11

2468

1012

Output

Transition Sequence of Diverter Switch

13579

11

2468

1012

Output

Transition Sequence of Diverter Switch

13579

11

2468

1012

Output

Transition Sequence of Diverter Switch

13579

11

2468

1012

Output

Transition Sequence of Diverter Switch

13579

11

2468

1012

Output

Transition Sequence of Diverter Switch

13579

11

2468

1012

Output

Transition Sequence of Diverter Switch

13579

11

2468

1012

Output

Transition Sequence of Diverter Switch

13579

11

2468

1012

Output

Transition Sequence of Diverter Switch

13579

11

2468

1012

Output

Transition Sequence of Diverter Switch

13579

11

2468

1012

Output

Transition Sequence of Diverter Switch

13579

11

2468

1012

Output

Transition Sequence of Diverter Switch

13579

11

2468

1012

Output

Transition Sequence of Diverter Switch

13579

11

2468

1012

Output

Transition Sequence of Diverter Switch

13579

11

2468

1012

Output

Transition Sequence of Diverter Switch

13579

11

2468

1012

Output

Transition Sequence of Diverter Switch

13579

11

2468

1012

Output

Transition Sequence of Diverter Switch

13579

11

2468

1012

Output

Transition Sequence of Diverter Switch

13579

11

2468

1012

Output

Transition Sequence of Diverter Switch

13579

11

2468

1012

Output

Measuring of Transition Resistance

Type D

•Current Rating up to 500 Amps with 3-pole & up to 1500 Amps with 1-pole.

•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.

TYPE-D

G-8

21