On Load Tap Changer Sequence

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Diverter Switch Connection leads Tap Selector Connection terminals for tap winding

Folie 2

Sequence of complete tap change operation

Folie 3

Switching Sequence of OLTC Operation Diagram 10193W (Reversing Switch) Electrical diagram

Mechanical diagram

Take-off

upper selector contact level 4

-

6

main winding 8

2

K 9

Reversing switch

0

diverter switch

1

3

+ 5

9 tap selector

7

15

6

14

5

13

4

12

3

11

2

10

1

9b

6 6 5 5 4 4 3 3 2 2

contact no tap position 000/97

7

8 8

-

lower selector contact level

Folie 4

16

9 9

+

1

8

7 7

tap winding

17

K 9a

K 0 +

9

1 1

Switching Sequence of OLTC Operation Diagram 10193W (Reversing Switch) Electrical diagram

Mechanical diagram

Take-off

upper selector contact level 4

-

6

main winding 8

2

K 9

Reversing switch

0

diverter switch

1

3

+ 5

9 tap selector

7

15

6

14

5

13

4

12

3

11

2

10

1

9b

6 6 5 5 4 4 3 3 2 2

contact no tap position 000/97

7

8 8

-

lower selector contact level

Folie 5

16

9 9

+

1

8

7 7

tap winding

17

K 9a

K 0 +

9

1 1

Switching Sequence of OLTC Operation Diagram 10193W (Reversing Switch) Electrical diagram

Mechanical diagram

Take-off

upper selector contact level 4

-

6

main winding 8

2

K 9

Reversing switch

0

diverter switch

1

3

+ 5

9 tap selector

7

15

6

14

5

13

4

12

3

11

2

10

1

9b

6 6 5 5 4 4 3 3 2 2

contact no tap position 000/97

7

8 8

-

lower selector contact level

Folie 6

16

9 9

+

1

8

7 7

tap winding

17

K 9a

K 0 +

9

1 1

Switching Sequence of OLTC Operation Diagram 10193W (Reversing Switch) Electrical diagram

Mechanical diagram

Take-off

upper selector contact level 4

-

6

main winding 8

2

K 9

Reversing switch

0

diverter switch

1

3

+ 5

9 tap selector

7

15

6

14

5

13

4

12

3

11

2

10

1

9b

6 6 5 5 4 4 3 3 2 2

contact no tap position 000/97

7

8 8

-

lower selector contact level

Folie 7

16

9 9

+

1

8

7 7

tap winding

17

K 9a

K 0 +

9

1 1

Switching Sequence of OLTC Operation Diagram 10193W (Reversing Switch) Electrical diagram

Mechanical diagram

Take-off

upper selector contact level 4

-

6

main winding 8

2

K 9

Reversing switch

0

diverter switch

1

3

+ 5

9 tap selector

7

15

6

14

5

13

4

12

3

11

2

10

1

9b

6 6 5 5 4 4 3 3 2 2

contact no tap position 000/97

7

8 8

-

lower selector contact level

Folie 8

16

9 9

+

1

8

7 7

tap winding

17

K 9a

K 0 +

9

1 1

Switching Sequence of OLTC Operation Diagram 10193W (Reversing Switch) Electrical diagram

Mechanical diagram

Take-off

upper selector contact level 4

-

6

main winding 8

2

K 9

Reversing switch

0

diverter switch

1

3

+ 5

9 tap selector

7

15

6

14

5

13

4

12

3

11

2

10

1

9b

6 6 5 5 4 4 3 3 2 2

contact no tap position 000/97

7

8 8

-

lower selector contact level

Folie 9

16

9 9

+

1

8

7 7

tap winding

17

K 9a

K 0 +

9

1 1

Switching Sequence of OLTC Operation Diagram 10193W (Reversing Switch) Electrical diagram

Mechanical diagram

Take-off

upper selector contact level 4

-

6

main winding 8

2

K 9

Reversing switch

0

diverter switch

1

3

+ 5

9 tap selector

7

15

6

14

5

13

4

12

3

11

2

10

1

9b

6 6 5 5 4 4 3 3 2 2

contact no tap position 000/97

7

8 8

-

lower selector contact level

Folie 10

16

9 9

+

1

8

7 7

tap winding

17

K 9a

K 0 +

9

1 1

Switching Sequence of OLTC Operation Diagram 10193W (Reversing Switch) Electrical diagram

Mechanical diagram

Take-off

upper selector contact level 4

-

6

main winding 8

2

K 9

Reversing switch

0

diverter switch

1

3

+ 5

9 tap selector

7

15

6

14

5

13

4

12

3

11

2

10

1

9b

6 6 5 5 4 4 3 3 2 2

contact no tap position 000/97

7

8 8

-

lower selector contact level

Folie 11

16

9 9

+

1

8

7 7

tap winding

17

K 9a

K 0 +

9

1 1

Switching Sequence of OLTC Operation Diagram 10193W (Reversing Switch) Electrical diagram

Mechanical diagram

Take-off

upper selector contact level 4

-

6

main winding 8

2

K 9

Reversing switch

0

diverter switch

1

3

+ 5

9 tap selector

7

15

6

14

5

13

4

12

3

11

2

10

1

9b

6 6 5 5 4 4 3 3 2 2

contact no tap position 000/97

7

8 8

-

lower selector contact level

Folie 12

16

9 9

+

1

8

7 7

tap winding

17

K 9a

K 0 +

9

1 1

Switching Sequence of OLTC Operation Diagram 10193W (Reversing Switch) Electrical diagram

Mechanical diagram

Take-off

upper selector contact level 4

-

6

main winding 8

2

K 9

Reversing switch

0

diverter switch

1

3

+ 5

9 tap selector

7

15

6

14

5

13

4

12

3

11

2

10

1

9b

6 6 5 5 4 4 3 3 2 2

contact no tap position 000/97

7

8 8

-

lower selector contact level

Folie 13

16

9 9

+

1

8

7 7

tap winding

17

K 9a

K 0 +

9

1 1

Switching Sequence of OLTC Operation Diagram 10193W (Reversing Switch) Electrical diagram

Mechanical diagram

Take-off

upper selector contact level 4

-

6

main winding 8

2

K 9

Reversing switch

0

diverter switch

1

3

+ 5

9 tap selector

7

15

6

14

5

13

4

12

3

11

2

10

1

9b

6 6 5 5 4 4 3 3 2 2

contact no tap position 000/97

7

8 8

-

lower selector contact level

Folie 14

16

9 9

+

1

8

7 7

tap winding

17

K 9a

K 0 +

9

1 1

Switching Sequence of OLTC Operation Diagram 10193W (Reversing Switch) Electrical diagram

Mechanical diagram

Take-off

upper selector contact level 4

-

6

main winding 8

2

K 9

Reversing switch

0

diverter switch

1

3

+ 5

9 tap selector

7

15

6

14

5

13

4

12

3

11

2

10

1

9b

6 6 5 5 4 4 3 3 2 2

contact no tap position 000/97

7

8 8

-

lower selector contact level

Folie 15

16

9 9

+

1

8

7 7

tap winding

17

K 9a

K 0 +

9

1 1

Switching Sequence of OLTC Operation Diagram 10193W (Reversing Switch) Electrical diagram

Mechanical diagram

Take-off

upper selector contact level 4

-

6

main winding 8

2

K 9

Reversing switch

0

diverter switch

1

3

+ 5

9 tap selector

7

15

6

14

5

13

4

12

3

11

2

10

1

9b

6 6 5 5 4 4 3 3 2 2

contact no tap position 000/97

7

8 8

-

lower selector contact level

Folie 16

16

9 9

+

1

8

7 7

tap winding

17

K 9a

K 0 +

9

1 1

Switching Sequence of OLTC Operation Diagram 10193W (Reversing Switch) Electrical diagram

Mechanical diagram

Take-off

upper selector contact level 4

-

6

main winding 8

2

K 9

Reversing switch

0

diverter switch

1

3

+ 5

9 tap selector

7

15

6

14

5

13

4

12

3

11

2

10

1

9b

6 6 5 5 4 4 3 3 2 2

contact no tap position 000/97

7

8 8

-

lower selector contact level

Folie 17

16

9 9

+

1

8

7 7

tap winding

17

K 9a

K 0 +

9

1 1

Switching Sequence of OLTC Operation Diagram 10193W (Reversing Switch) Electrical diagram

Mechanical diagram

Take-off

upper selector contact level 4

-

6

main winding 8

2

K 9

Reversing switch

0

diverter switch

1

3

+ 5

9 tap selector

7

15

6

14

5

13

4

12

3

11

2

10

1

9b

6 6 5 5 4 4 3 3 2 2

contact no tap position 000/97

7

8 8

-

lower selector contact level

Folie 18

16

9 9

+

1

8

7 7

tap winding

17

K 9a

K 0 +

9

1 1

Switching Sequence of OLTC Operation Diagram 10193W (Reversing Switch) Electrical diagram

Mechanical diagram

Take-off

upper selector contact level 4

-

6

main winding 8

2

K 9

Reversing switch

0

diverter switch

1

3

+ 5

9 tap selector

7

15

6

14

5

13

4

12

3

11

2

10

1

9b

6 6 5 5 4 4 3 3 2 2

contact no tap position 000/97

7

8 8

-

lower selector contact level

Folie 19

16

9 9

+

1

8

7 7

tap winding

17

K 9a

K 0 +

9

1 1

Switching Sequence of OLTC Operation Diagram 10193W (Reversing Switch) Electrical diagram

Mechanical diagram

Take-off

upper selector contact level 4

-

6

main winding 8

2

K 9

Reversing switch

0

diverter switch

1

3

+ 5

9 tap selector

7

15

6

14

5

13

4

12

3

11

2

10

1

9b

6 6 5 5 4 4 3 3 2 2

contact no tap position 000/97

7

8 8

-

lower selector contact level

Folie 20

16

9 9

+

1

8

7 7

tap winding

17

K 9a

K 0 +

9

1 1

Switching Sequence of OLTC Operation Diagram 10193W (Reversing Switch) Electrical diagram

Mechanical diagram

Take-off

upper selector contact level 4

-

6

main winding 8

2

K 9

Reversing switch

0

diverter switch

1

3

+ 5

9 tap selector

7

15

6

14

5

13

4

12

3

11

2

10

1

9b

6 6 5 5 4 4 3 3 2 2

contact no tap position 000/97

7

8 8

-

lower selector contact level

Folie 21

16

9 9

+

1

8

7 7

tap winding

17

K 9a

K 0 +

9

1 1