GE D60 Instruction Manual page 581

8 THEORY OF OPERATION
Table 8–26: PERMISSIVE SCHEME TRIP TABLE FOR 4-BIT CHANNELS
REMOTE DATA
BIT PATTERN RECEIVED
RX1 RX2 RX3
0 0 0
0 1 0
0 0 1
1 0 0
0 1 0
1 0 0
0 0 1
0 0 0
0 0 1
1 0 0
0 1 0
0 0 0
1 0 0
0 1 0
0 0 1
0 0 0
Table 8–27: BLOCKING SCHEME TRIP TABLE FOR FOUR-BIT CHANNELS
REMOTE DATA
BIT PATTERN RECEIVED
RX1 RX2 RX3
0 0 0
1 1 1
1 0 1
1 1 0
0 1 1
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
GE Multilin
REMOTE
DETERMINATION OF
RX4
FAULT TYPE
1 MULTI-P
0 BG
0 CG
0 AG
0 BG
0 AG
0 CG
1 MULTI-P
0 CG
0 AG
0 BG
1 MULTI-P
0 AG
0 BG
0 CG
1 MULTI-P
REMOTE
DETERMINATION
RX4
OF FAULT TYPE
0 Any while the INIT
signal was not
established
0 MULTI-P
1 BG
1 CG
1 AG
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
D60 Line Distance Protection System
8.5 SINGLE-POLE TRIPPING
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
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
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
DIR BLOCK TRIP B
8
DIR BLOCK TRIP C
DIR BLOCK TRIP 3P
8-31