GE C60 Instruction Manual page 598

SINGLE-POLE TRIPPING
Table 8-17: Unblocking scheme transmit codes for four-bit channels
Phase selector determination of
fault type
AG
BG
CG
AB, ABG, BC, BCG, CA, CAG, 3P,
Unrecognized
The action output is generated per the following tables.
Table 8-18: Permissive scheme trip table for four-bit channels
Remote data
Bit pattern received
RX1 RX2
0 0
0 1
0 0
1 0
0 1
1 0
0 0
0 0
0 0
1 0
0 1
0 0
1 0
0 1
0 0
0 0
Table 8-19: Blocking scheme trip table for four-bit channels
Remote data
Bit pattern received
8
RX1 RX2
0 0
1 1
1 0
1 1
0 1
8-14
Bit pattern transmitted
TX1
1
0
0
0
Remote
determination of
RX3 RX4
fault type
0 1 MULTI-P
0 0 BG
1 0 CG
0 0 AG
0 0 BG
0 0 AG
1 0 CG
0 1 MULTI-P
1 0 CG
0 0 AG
0 0 BG
0 1 MULTI-P
0 0 AG
0 0 BG
1 0 CG
0 1 MULTI-P
Remote determination of
fault type
RX3 RX4
0 0 Any while the INIT signal
was not established
1 0 MULTI-P
1 1 BG
0 1 CG
1 1 AG
TX2 TX3
0 0
1 0
0 1
0 0
Local data
Local determination of fault
type
AG
AG
AG
AG, AB, ABG, CA, CAG, 3P,
Unrecognized
BG, AB, ABG, BC, BCG, 3P,
Unrecognized
BG
BG
BG
CG, BC, BCG, CA, CAG, 3P,
Unrecognized
CG
CG
CG
BC, BCG
CA, CAG
AB, ABG
Unrecognized
Local data
Local determination of fault
type
AG
AG
AG
AG, AB, ABG, CA, CAG, 3P,
Unrecognized
C60 BREAKER PROTECTION SYSTEM – INSTRUCTION MANUAL
CHAPTER 8: THEORY OF OPERATION
TX4
0
0
0
1
Trip output
Trip Phase A
Trip Phase B
Trip Phase C
Trip Three Phases
Trip output
Trip as for single-bit
channel
DIR BLOCK TRIP A