GE D60 Instruction Manual page 546

9.5 SINGLE-POLE TRIPPING
Table 9–28: UNBLOCKING SCHEME TRIP TABLE FOR FOUR-BIT CHANNELS
BIT PATTERN RECEIVED
RX1 LOG1 RX2
0 0 0
0 0 0
0 0 1
0 0 0
0 0 0
0 0 0
1 1 0
0 1 0
0 0 1
0 0 0
1 1 0
0 1 0
0 0 0
0 0 0
0 0 0
0 0 0
0 0 0
0 0 0
1 1 0
0 1 0
0 0 1
0 0 0
0 0 0
0 0 0
1 1 0
0 1 0
0 0 1
0 0 0
0 0 0
0 0 0
0 0 0
0 0 0
9
9-32
REMOTE DATA
LOG2 RX3 LOG3 RX4 LOG4
0 0 0 1
0 0 0 0
1 0 0 0
1 0 0 0
0 1 1 0
0 0 1 0
0 0 0 0
0 0 0 0
1 0 0 0
1 0 0 0
0 0 0 0
0 0 0 0
0 1 1 0
0 0 1 0
0 0 0 1
0 0 0 0
0 1 1 0
0 0 1 0
0 0 0 0
0 0 0 0
1 0 0 0
1 0 0 0
0 0 0 1
0 0 0 0
0 0 0 0
0 0 0 0
1 0 0 0
1 0 0 0
0 1 1 0
0 0 1 0
0 0 0 1
0 0 0 0
D60 Line Distance Protection System
REMOTE
DETERMINATION DETERMINATION OF
OF FAULT TYPE
1 MULTI-P
1
0 BG
0
0 CG
0
0 AG
CAG, 3P, unrecognized
0
0 BG
CAG, 3P, unrecognized
0
0 AG
0
0 CG
0
1 MULTI-P
1
0 CG
CAG, 3P, unrecognized
0
0 AG
0
0 BG
0
1 MULTI-P
1
0 AG
0
0 BG
0
0 CG
0
1 MULTI-P
1
9 THEORY OF OPERATION
LOCAL DATA
LOCAL TRIP OUTPUT
FAULT TYPE
AG DCUB TRIP A
AG, AB, ABG, CA,
AG, AB, ABG, CA, DCUB TRIP B
BG
CG, BC, BCG, CA, DCUB TRIP C
CG
BC, BCG DCUB TRIP 3P
CA, CAG
AB, ABG
3P or unrecognized
GE Multilin