GE Multilin 850 - Page 501

CHAPTER 4: SETPOINTS CONTROL
850 FEEDER PROTECTION SYSTEM – INSTRUCTION MANUAL 4–369
Figure 4-157: Transfer Scheme - Incomer Breaker 1 logic diagram
SETPOINT
TRANSFER
FUNCTION :
Disabled Incomer 1
OR
Incomer 2 Tie
AND
SETPOINT
TRANSFER
UV ON OTHER SOURCE :
Off = 0
FlexLogic Operand
INC 1 TRNSFR READY :
SETPOINT
TRANSFER
INC2 CB CON & CLOSED :
Off = 0
SETPOINT
TRANSFER
TIE CB CONNECTED :
Off = 0
SETPOINT
TRANSFER
TIE CB CON & CLOSED :
Off = 0
SETPOINT
TRANSFER
INC1 CB SLCTD TO TRIP
:
Off = 0
SETPOINT
TRANSFER
SOURCE TRF LOCKOUT
:
Off = 0
SETPOINT
TRANSFER
SOURCE
TRIP
:
Off = 0
SETPOINT
TRANSFER
BLOCK TRANSFER
:
Off = 0
SETPOINT
TRANSFER
INC1 CB CONNECTED :
Off = 0
SETPOINT
TRANSFER
INC 1 CB CLOSED :
Off = 0
FlexLogic Operand
INC 1 TO CLS TIE CB
:
FlexLogic Operand
INC 1 CB CON & CLSD :
AND
BLOCK #2 CLOSE RLY
AND
AND
SETPOINT
TRANSFER
DELAY SELECT TO TRIP
:
Tdstt
OR
SETPOINT
TRANSFER
BLCK TRIP ON DBL LOSS
:
Enabled = 1
TRIP # 1 TRIP RLY
OR
AND
AND
AND
AND
AND
Disabled = 0
0
SETPOINT
TRANSFER
DELAY OTHER SOURCE :
Tdos
0
SETPOINT
TRANSFER
DELAY THIS SOURCE
:
Tdts
0
OR
AND
AND
AND AND
OR
SETPOINT
TRANSFER
TIMED UV
THIS SOURCE
:
Off = 0
SETPOINT
TRANSFER
INST UV ON THIS SOURCE
Off = 0
TRANSFER NOT READY
:
Target Message
SETPOINT
TRANSFER
FAULT CURR PICKUP IN
1:
Off = 0
SETPOINT
TRANSFER
FAULT CURR PICKUP IN
6:
Off = 0
OR
...
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