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5-244
L90 Line Current Differential System
GE Multilin
5.6 GROUPED ELEMENTS
5 SETTINGS
5
•
87L TRIP SEAL-IN
: This setting is used to enable/disable seal-in of the trip signal by measurement of the current flow-
ing.
•
87L TRIP SEAL-IN PICKUP
: This setting is used to select a pickup setting of the current seal-in function.
Figure 5–130: 87L TRIP SCHEME LOGIC
AND
AND
AND
AND
831020A6.CDR
OR
OR
OR
OR
AND
AND
AND
AND
OR
OR
OR
OR
0
50
OR
OR
OR
OR
XOR
AND
AND
AND
AND
SETTING
= Enabled
87L TRIP SEAL-IN
SETTING
Ia > PICKUP
Ib > PICKUP
87L TRIP SEAL-IN PICKUP
Ic > PICKUP
SETTING
= Ia
= Ib
87L TRIP SOURCE
= Ic
SETTING
= Enabled
87L TRIP FUNCTION
FLEXLOGIC OPERAND
87L DIFF OP A
FLEXLOGIC OPERAND
87L RECVD DTT A
FLEXLOGIC OPERAND
87L DIFF OP B
FLEXLOGIC OPERAND
87L RECVD DTT B
FLEXLOGIC OPERAND
87L DIFF OP C
FLEXLOGIC OPERAND
87L RECVD DTT C
SETTING
= 1-Pole
= 3-Pole
87L TRIP MODE
SETTING
= Off
87L TRIP FORCE 3-
Φ
SETTING
= 50DD SV
87L TRIP SUPV
FLEXLOGIC OPERANDS
OPEN POLE OP A
Φ
OPEN POLE OP B
Φ
OPEN POLE OP C
Φ
OPEN POLE OP
AND
AND
AND
OR
FLEXLOGIC OPERAND
87L TRIP OP A
FLEXLOGIC OPERAND
87L TRIP OP B
FLEXLOGIC OPERAND
87L TRIP OP C
FLEXLOGIC OPERAND
87L TRIP OP
FLEXLOGIC OPERAND
87L TRIP 1P OP
FLEXLOGIC OPERAND
87L TRIP 3P OP
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 ...