GE D60 - Page 580

8-30 D60 Line Distance Protection System GE Multilin
8.5 SINGLE-POLE TRIPPING 8 THEORY OF OPERATION
8
The action output is generated per the following tables.
Table 8–23: PERMISSIVE SCHEME TRANSMIT CODES FOR 4-BIT CHANNELS
PHASE SELECTOR
DETERMINATION OF FAULT TYPE
BIT PATTERN TRANSMITTED
TX1 TX2 TX3 TX4
AG 1000
BG 0100
CG 0010
AB, ABG, BC, BCG, CA, CAG, 3P,
Unrecognized
0001
Table 8–24: BLOCKING SCHEME TRANSMIT CODES FOR 4-BIT CHANNELS
PHASE SELECTOR
DETERMINATION OF FAULT
TYPE
BIT PATTERN TRANSMITTED FLEXLOGIC™ OPRERANDS ASSERTED
TX1 TX2 TX3 TX4 TX1 STOP TX2 STOP TX3 STOP TX4 STOP
AG 01111000
BG 10110100
CG 11010010
AB, ABG, BC, BCG, CA, CAG,
3P, Unrecognized
11100001
Table 8–25: UNBLOCKING SCHEME TRANSMIT CODES FOR 4-BIT CHANNELS
PHASE SELECTOR
DETERMINATION OF FAULT TYPE
BIT PATTERN TRANSMITTED
TX1 TX2 TX3 TX4
AG 1000
BG 0100
CG 0010
AB, ABG, BC, BCG, CA, CAG, 3P,
Unrecognized
0001