GE L90 Instruction Manual page 259

5 SETTINGS
Table 5–10: L90 FLEXLOGIC OPERANDS (Sheet 8 of 10)
OPERAND TYPE OPERAND SYNTAX
ELEMENT: SRC1 VT FUSE FAIL OP
VTFF (Voltage SRC1 VT FUSE FAIL DPO
transformer fuse SRC1 VT FUSE FAIL VOL LOSS
failure)
SRC1 VT NEU WIRE OPEN
SRC2 VT FUSE FAIL to
SRC4 VT FUSE FAIL
ELEMENT: STUB BUS OP
Stub bus
ELEMENT: SWITCH 1 OFF CMD
Disconnect switch SWITCH 1 ON CMD
SWITCH 1 A BAD ST
SWITCH 1 A INTERM
SWITCH 1 A CLSD
SWITCH 1 A OPEN
SWITCH 1 B BAD ST
SWITCH 1 A INTERM
SWITCH 1 B CLSD
SWITCH 1 B OPEN
SWITCH 1 C BAD ST
SWITCH 1 A INTERM
SWITCH 1 C CLSD
SWITCH 1 C OPEN
SWITCH 1 BAD STATUS
SWITCH 1 CLOSED
SWITCH 1 OPEN
SWITCH 1 DISCREP
SWITCH 1 TROUBLE
SWITCH 2...
ELEMENT: SYNC 1 DEAD S OP
Synchrocheck SYNC 1 DEAD S DPO
SYNC 1 SYNC OP
SYNC 1 SYNC DPO
SYNC 1 CLS OP
SYNC 1 CLS DPO
SYNC 1 V1 ABOVE MIN
SYNC 1 V1 BELOW MAX
SYNC 1 V2 ABOVE MIN
SYNC 1 V2 BELOW MAX
SYNC 2
ELEMENT TRIP 3-POLE
Trip output TRIP 1-POLE
TRIP PHASE A
TRIP PHASE B
TRIP PHASE C
TRIP AR INIT 3-POLE
TRIP FORCE 3-POLE
TRIP OUTPUT OP
TRIP Z2PH TMR INIT
TRIP Z2GR TMR INIT
ELEMENT TRIP BUS 1 PKP
Trip bus TRIP BUS 1 OP
TRIP BUS 2...
ELEMENT: UNDERFREQ 1 PKP
Underfrequency UNDERFREQ 1 OP
UNDERFREQ 1 DPO
UNDERFREQ 2 to 6
ELEMENT: WATTMETRIC 1 PKP
Wattmetric zero- WATTMETRIC 1 OP
sequence
WATTMETRIC 2...
directional
GE Multilin
OPERAND DESCRIPTION
Source 1 VT fuse failure detector has operated
Source 1 VT fuse failure detector has dropped out
Source 1 has lost voltage signals (V2 below 15% AND V1 below 5%
of nominal)
Source 1 VT neutral wire open detected.
Same set of operands as shown for SRC1 VT FUSE FAIL
Stub bus is operated
Disconnect switch 1 open command initiated
Disconnect switch 1 close command initiated
Disconnect switch 1 phase A bad status is detected (discrepancy between
the 52/a and 52/b contacts)
Disconnect switch 1 phase A intermediate status is detected (transition from
one position to another)
Disconnect switch 1 phase A is closed
Disconnect switch 1 phase A is open
Disconnect switch 1 phase B bad status is detected (discrepancy between
the 52/a and 52/b contacts)
Disconnect switch 1 phase A intermediate status is detected (transition from
one position to another)
Disconnect switch 1 phase B is closed
Disconnect switch 1 phase B is open
Disconnect switch 1 phase C bad status is detected (discrepancy between
the 52/a and 52/b contacts)
Disconnect switch 1 phase A intermediate status is detected (transition from
one position to another)
Disconnect switch 1 phase C is closed
Disconnect switch 1 phase C is open
Disconnect switch 1 bad status is detected on any pole
Disconnect switch 1 is closed
Disconnect switch 1 is open
Disconnect switch 1 has discrepancy
Disconnect switch 1 trouble alarm
Same set of operands as shown for SWITCH 1
Synchrocheck 1 dead source has operated
Synchrocheck 1 dead source has dropped out
Synchrocheck 1 in synchronization has operated
Synchrocheck 1 in synchronization has dropped out
Synchrocheck 1 close has operated
Synchrocheck 1 close has dropped out
Synchrocheck 1 V1 is above the minimum live voltage
Synchrocheck 1 V1 is below the maximum dead voltage
Synchrocheck 1 V2 is above the minimum live voltage
Synchrocheck 1 V2 is below the maximum dead voltage
Same set of operands as shown for SYNC 1
Trip all three breaker poles
A single-pole trip-and-reclose operation is initiated
Trip breaker pole A, initiate phase A breaker fail and reclose
Trip breaker pole B, initiate phase B breaker fail and reclose
Trip breaker pole C, initiate phase C breaker fail and reclose
Initiate a three-pole reclose
Three-pole trip must be initiated
Any trip is initiated by the trip output
Phase distance zone 2 timer is initiated by the trip output
Ground distance zone 2 timer is initiated by the trip output
Asserted when the trip bus 1 element picks up.
Asserted when the trip bus 1 element operates.
Same set of operands as shown for TRIP BUS 1
Underfrequency 1 has picked up
Underfrequency 1 has operated
Underfrequency 1 has dropped out
Same set of operands as shown for UNDERFREQ 1 above
Wattmetric directional element 1 has picked up
Wattmetric directional element 1 has operated
Same set of operands as per WATTMETRIC 1 above
L90 Line Current Differential System
5.5 FLEXLOGIC
5
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