GE Multilin
L90 Line Current Differential System
9-41
9 THEORY OF OPERATION
9.5 SINGLE-POLE TRIPPING
9
The action output is generated per the following tables.
Table 9–19: UNBLOCKING SCHEME TRANSMIT CODES FOR 2-BIT CHANNELS
PHASE SELECTOR DETERMINATION
OF FAULT TYPE
BIT PATTERN TRANSMITTED
TX1
TX2
AG, BC, BCG
1
0
BG, CA, CAG
0
1
CG, AB, ABG, 3P, Unrecognized
1
1
Table 9–20: PERMISSIVE SCHEME TRIP TABLE FOR 2-BIT CHANNELS
REMOTE DATA
LOCAL DATA
BIT PATTERN RECEIVED
REMOTE DETERMINATION OF FAULT
TYPE
LOCAL DETERMINATION
OF FAULT TYPE
TRIP OUTPUT
RX1
RX2
1
0
AG, BC, BCG
AG, AB, ABG CA, CAG, 3P
Trip Phase A
0
1
BG, CA, CAG
AG
1
1
CG, AB, ABG, 3P, Unrecognized
AG
0
1
BG, CA, CAG
BG, AB, ABG, BC, BCG, 3P
Trip Phase B
1
1
CG, AB, ABG, 3P, Unrecognized
BG
1
0
AG, BC, BCG
BG
1
1
CG, AB, ABG, 3P, Unrecognized
CG, BC, BCG, CA, CAG
Trip Phase C
1
0
AG, BC, BCG
CG
0
1
BG, CA, CAG
CG
1
1
CG, AB, ABG, 3P, Unrecognized
AB, ABG, 3P, Unrecognized
Trip Three Phases
1
0
AG, BC, BCG
BC, BCG, Unrecognized
0
1
BG, CA, CAG
CA, CAG, Unrecognized
Table 9–21: BLOCKING SCHEME TRIP TABLE FOR 2-BIT CHANNELS
REMOTE DATA
LOCAL DATA
BIT PATTERN RECEIVED
REMOTE DETERMINATION OF FAULT
TYPE
LOCAL DETERMINATION
OF FAULT TYPE
TRIP OUTPUT
RX1
RX2
0
1
AG, BC, BCG
AG, AB, ABG CA, CAG, 3P
DIR BLOCK TRIP A
1
0
BG, CA, CAG
AG
0
0
CG, AB, ABG, 3P, Unrecognized
AG
1
0
BG, CA, CAG
BG, AB, ABG, BC, BCG, 3P
DIR BLOCK TRIP B
0
0
CG, AB, ABG, 3P, Unrecognized
BG
0
1
AG, BC, BCG
BG
0
0
CG, AB, ABG, 3P, Unrecognized
CG, BC, BCG, CA, CAG
DIR BLOCK TRIP C
0
1
AG, BC, BCG
CG
1
0
BG, CA, CAG
CG
0
0
CG, AB, ABG, 3P, Unrecognized
AB, ABG, 3P, Unrecognized
DIR BLOCK TRIP 3P
0
1
AG, BC, BCG
BC, BCG Unrecognized
1
0
BG, CA, CAG
CA, CAG Unrecognized
Summary of Contents for UR Series L90
Page 652: ...A 16 L90 Line Current Differential System GE Multilin A 1 PARAMETER LISTS APPENDIX A A ...
Page 772: ...B 120 L90 Line Current Differential System GE Multilin B 4 MEMORY MAPPING APPENDIX B B ...
Page 802: ...C 30 L90 Line Current Differential System GE Multilin C 7 LOGICAL NODES APPENDIX C C ...
Page 812: ...D 10 L90 Line Current Differential System GE Multilin D 1 IEC 60870 5 104 APPENDIX D D ...
Page 824: ...E 12 L90 Line Current Differential System GE Multilin E 2 DNP POINT LISTS APPENDIX E E ...
Page 834: ...F 10 L90 Line Current Differential System GE Multilin F 3 WARRANTY APPENDIX F F ...
Page 846: ...xii L90 Line Current Differential System GE Multilin INDEX ...