Interlock - one and half breaker system

ONE & HALF BREAKER SYSTEM

BAY 1

FOR 1-89  ISOLATOR OPERATION:

FOR 1-89E  ISOLATOR OPERATION:

FOR 1-89A  ISOLATOR OPERATION:

FOR 1-89AE  EARTH SWITCH OPERATION:

FOR 1-89L  ISOLATOR OPERATION:

FOR 1-89LE  EARTH SWITCH OPERATION:

FOR 1-89R  ISOLATOR OPERATION:

FOR 1-89RE  EARTH SWITCH OPERATION:

                            1-52 CB

R-52 CB

FOR 2-89A  ISOLATOR OPERATION:

FOR 2-89B  ISOLATOR OPERATION:

FOR 2-89AE  EARTH SWITCH OPERATION:

FOR 2-89BE  EARTH SWITCH OPERATION:

BAY 2

FOR 3-89  ISOLATOR OPERATION:

FOR 3-89E  EARTH SWITCH OPERATION:

FOR 3-89A  ISOLATOR OPERATION:

FOR 3-89AE  EARTH SWITCH OPERATION:

FOR 3-89T  ISOLATOR OPERATION:

FOR 3-89TE  EARTH SWITCH OPERATION:

3-52 CB

Interlock - Double bus & transfer bus system

FOR 89-C/BAY ISOLATOR OPERATION:

FOR 89-L/BAY ISOLATOR OPERATION:

FOR 89-AE/BAY ISOLATOR OPERATION:

FOR 89-LE1/BAY ISOLATOR OPERATION:

FOR 89-LE2/BAY ISOLATOR OPERATION:

FOR 52 CB/BAY CIRCUIT BREAKER

FOR REMOTE OPERATION:

1.86-GA   HSTR/MTR RESET CONDITION.

2.86-GB   HSTR/MTR RESET CONDITION.

3.96-BB   TBC HSTR/MTR RESET CONDITION.

4.89A/89B ISOLATOR CLOSE POSITION

5.89L ISOLATOR CLOSE POSITION

FOR 52 CB /BAYCIRCUIT BREAKER FOR LOCAL OPERATION:

1.89-A ISOLATOR OPEN CONDITION.

2.89-L  ISOLATOR OPEN CONDITION.

3.89-AE  TBC EARTH SWITCH CLOSED CONDITION.

4.89-LE1 EARTH SWITCH CLOSED CONDITION.

TRANSFER BUS COUPLER

FOR 89-A / TBC ISOLATOR OPERATION:

1.52 CB / TBC IN OPEN CONDITION.

2.89AE / TBC EARTH SWITCH OPEN CONDITION.

3.BB189E BUSEARTH SWITCH OPEN CONDITION.

4.89-B/TBC ISOLATOR OPEN CONDITION

( Selection Logic Considering BC Isolator & BC CB can be opt , for online switching between BUS- 1& 2)

FOR 89-B / TBC ISOLATOR OPERATION:

1.52 CB / TBC IN OPEN CONDITION.

2.89AE / TBC EARTH SWITCH OPEN CONDITION.

3.BB289E BUSEARTH SWITCH OPEN CONDITION.

4.89-A/TBC ISOLATOR OPEN CONDITION

( Selection Logic Considering BC Isolator & BC CB can be opt , for online switching between BUS- 1& 2)

FOR 89-C / TBC ISOLATOR OPERATION:

1.52 CB / TBC IN OPEN CONDITION.

2.89CE / TBC EARTH SWITCH OPEN CONDITION.

3.BB389E BUSEARTH SWITCH OPEN CONDITION.

FOR 89-AE / TBC EARTH SWITCH OPERATION:

1.89-A / TBC ISOLATOR OPEN CONDITION.

2.89-B / TBC ISOLATOR OPEN CONDITION.

3.52-CB / TBC BREAKER OPEN CONDITION.

FOR 89-CE / TBC EARTH SWITCH OPERATION:

1.52-CB/ TBC BREAKER  OPEN CONDITION.

2.89-C / TBC ISOLATOR OPEN CONDITION.

FOR 52 CB / TBC CIRCUIT BREAKER FOR REMOTE OPERATION:

1.86-GA / TBC HSTR/MTR RESET CONDITION.

2.86-GB / TBC HSTR/MTR RESET CONDITION.

3.96-BB / TBC HSTR/MTR RESET CONDITION.

4.89A/89B ISOLATOR CLOSE POSITION

5.89C ISOLATOR CLOSE POSITION

FOR 52 CB / TBC CIRCUIT BREAKER FOR LOCAL OPERATION:

1. 89-A / TBC ISOLATOR OPEN CONDITION.

2. 89-B / TBC ISOLATOR OPEN CONDITION.

3. 89-C / TBC ISOLATOR OPEN CONDITION.

4.  89-AE / TBC EARTH SWITCH CLOSED CONDITION.

5.  89-CE / TBC EARTH SWITCH CLOSED CONDITION.

FOR 89-A / BC ISOLATOR OPERATION:

1.52 CB / BC IN OPEN CONDITION.

2.89AE / BC EARTH SWITCH OPEN CONDITION.

3.BB189E BUSEARTH SWITCH OPEN CONDITION.

FOR 89-B / BC ISOLATOR OPERATION:

1.52 CB / BC IN OPEN CONDITION.

2.89BE / BC EARTH SWITCH OPEN CONDITION.

3.BB289E BUSEARTH SWITCH OPEN CONDITION.

FOR 89-AE / BC EARTH SWITCH OPERATION:

1.89-A / BC ISOLATOR OPEN CONDITION.

2.52-CB / BC BREAKER  OPEN CONDITION.

FOR 89-BE / BC EARTH SWITCH OPERATION:

1.89-A / BC ISOLATOR OPEN CONDITION.

2.52-CB / BC BREAKER OPEN CONDITION.

FOR 52 CB / BC CIRCUIT BREAKER FOR REMOTE OPERATION:

1.86-GA / BC HSTR/MTR RESET CONDITION.

2.86-GB / BC HSTR/MTR RESET CONDITION.

3.96-BB / BC HSTR/MTR RESET CONDITION.

4.89-A/BC  ISOLATOR CLOSE POSITION

5.89-B/BC ISOLATOR CLOSE POSITION

FOR 52 CB / BC CIRCUIT BREAKER FOR LOCAL OPERATION:

1. 89-A / BC ISOLATOR OPEN CONDITION.

2. 89-B / BC ISOLATOR OPEN CONDITION.

3. 89-AE / BC EARTH SWITCH CLOSED CONDITION.

4. 89-BE / BC EARTH SWITCH CLOSED CONDITION.

Interlock - single bus & transfer bus system

FOR 89-A/BAY ISOLATOR OPERATION:

1. 52 CB/BAY IN OPEN CONDITION.
2. 89AE/BAY EARTH SWITCH OPEN CONDITION.
3. 89LE1/BAY EARTH SWITCH OPEN CONDITION.
4. BB189E BUSEARTH SWITCH OPEN CONDITION

FOR 89-L ISOLATOR OPERATION:

1.52 CB IN OPEN CONDITION.

2.89AE EARTH SWITCH OPEN CONDITION.

3.89LE1 EARTH SWITCH OPEN CONDITION.

4.89LE2 LINE EARTH SWITCH OPEN CONDITION.

FOR 89-AE EARTH SWITCH OPERATION:

1.89-A ISOLATOR OPEN CONDITION.

2.89-L ISOLATOR OPEN CONDITION.

FOR 89-LE1 EARTH SWITCH OPERATION:

1.89-A ISOLATOR OPEN CONDITION.

2.89-L ISOLATOR OPEN CONDITION.

FOR 89-LE2 EARTH SWITCH OPERATION:

1.89C BUS ISOLATOR OPEN CONDITION.

2.89L LINE ISOLATOR OPEN CONDITION.

3.LINE DEAD CONDITION i.e U/V RELAY OPERATED.

FOR 52 CB CIRCUIT BREAKER FOR REMOTE OPERATION:

1.86-GA   HSTR/MTR RESET CONDITION.

2.86-GB   HSTR/MTR RESET CONDITION.

3.96-BB   TBC HSTR/MTR RESET CONDITION.

FOR 52 CB CIRCUIT BREAKER FOR LOCAL OPERATION:

1. 89-A ISOLATOR OPEN CONDITION.

2. 89-L  ISOLATOR OPEN CONDITION.

3.  89-AE  TBC EARTH SWITCH CLOSED CONDITION.

4.  89-LE1 EARTH SWITCH CLOSED CONDITION.

FOR 89-C ISOLATOR OPERATION:

1.NO OTHER ISOLATOR IS CLOSED TO TRANSFER BUS C

2.BB389E EARTH SWITCH OPEN CONDITION.

3.89LE2 EARTH SWITCH OPEN CONDITION.

4.52 TBC CB IN  OPEN CONDITION.

OR

1.52 CB IN CLOSED POSITION.

2.89-A ISOLATOR CLOSED CONDITION.

3.89-L ISOLATOR CLOSED POSITION.

4.89-A/TBC BAY BUS-A ISOLATOR CLOSED POSITION.

5.89-C/TBC BAY BUS-C ISOLATOR CLOSED POSITION.

6.NO OTHER ISOLATOR IS CLOSED TO TRANSFER BUS C

7.ADDITIONAL INTERLOCK PROTECTION TRANSFERRED MAY ALSO PUT THROUGH PROTECTION TRANSFER SWITCH.

TRANSFER BUS COUPLER

FOR 89-A / TBC ISOLATOR OPERATION:

1.52 CB / TBC IN OPEN CONDITION.

2.89AE / TBC EARTH SWITCH OPEN CONDITION.

3.89CE / TBC EARTH SWITCH OPEN CONDITION.

4.BB189E BUSEARTH SWITCH OPEN CONDITION.

FOR 89-C / TBC ISOLATOR OPERATION:

1.52 CB / TBC IN OPEN CONDITION.

2.89AE / TBC EARTH SWITCH OPEN CONDITION.

3.89CE / TBC EARTH SWITCH OPEN CONDITION.

4.BB389E BUSEARTH SWITCH OPEN CONDITION.

FOR 89-AE / TBC EARTH SWITCH OPERATION:

1.89-A / TBC ISOLATOR OPEN CONDITION.

2. 89-C / TBC ISOLATOR OPEN CONDITION.

FOR 89-CE / TBC EARTH SWITCH OPERATION:

1.89-A / TBC ISOLATOR OPEN CONDITION.

2. 89-C / TBC ISOLATOR OPEN CONDITION

FOR 52 CB / TBC CIRCUIT BREAKER FOR REMOTE OPERATION:

1.86-GA / TBC HSTR/MTR RESET CONDITION.

2.86-GB / TBC HSTR/MTR RESET CONDITION.

3.96-BB / TBC HSTR/MTR RESET CONDITION.

FOR 52 CB / TBC CIRCUIT BREAKER FOR LOCAL OPERATION:

1. 89-A / TBC ISOLATOR OPEN CONDITION.

2. 89-C / TBC ISOLATOR OPEN CONDITION.

3.  89-AE / TBC EARTH SWITCH CLOSED CONDITION.

4.  89-CE / TBC EARTH SWITCH CLOSED CONDITION.