GE C60 Instruction Manual page 599

CHAPTER 8: THEORY OF OPERATION
Remote data
Bit pattern received
RX1 RX2 RX3
1 0 1
0 1 1
1 1 0
1 1 1
1 1 0
0 1 1
1 0 1
1 1 1
0 1 1
1 0 1
1 1 0
1 1 1
Table 8-20: Unblocking scheme trip table for four-bit channels
Remote data
Bit pattern received
RX1 LOG1 RX2 LOG2
0 0 0 0
0 0 0 0
0 0 1 1
0 0 0 1
0 0 0 0
0 0 0 0
1 1 0 0
0 1 0 0
0 0 1 1
0 0 0 1
1 1 0 0
0 1 0 0
0 0 0 0
0 0 0 0
0 0 0 0
0 0 0 0
0 0 0 0
0 0 0 0
1 1 0 0
0 1 0 0
0 0 1 1
0 0 0 1
0 0 0 0
0 0 0 0
C60 BREAKER PROTECTION SYSTEM – INSTRUCTION MANUAL
Remote determination of
fault type
RX4
1 BG
1 AG
1 CG
0 MULTI-P
1 CG
1 AG
1 BG
0 MULTI-P
1 AG
1 BG
1 CG
0 MULTI-P
RX3 LOG3 RX4 LOG4
0 0 1 1
0 0 0 1
0 0 0 0
0 0 0 0
1 1 0 0
0 1 0 0
0 0 0 0
0 0 0 0
0 0 0 0
0 0 0 0
0 0 0 0
0 0 0 0
1 1 0 0
0 1 0 0
0 0 1 1
0 0 0 1
1 1 0 0
0 1 0 0
0 0 0 0
0 0 0 0
0 0 0 0
0 0 0 0
0 0 1 1
0 0 0 1
Local data
Local determination of fault
type
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
Remote Local determination
determinatio of fault type
n of fault
type
MULTI-P AG
BG
CG
AG AG, AB, ABG, CA, CAG,
3P, unrecognized
BG AG, AB, ABG, CA, CAG,
3P, unrecognized
AG BG
CG
MULTI-P
CG CG, BC, BCG, CA, CAG,
3P, unrecognized
AG CG
BG
MULTI-P
SINGLE-POLE TRIPPING
Trip output
DIR BLOCK TRIP B
DIR BLOCK TRIP C
DIR BLOCK TRIP 3P
Trip output
DCUB TRIP A
DCUB TRIP B
DCUB TRIP C
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