
GE Multilin
N60 Network Stability and Synchrophasor Measurement System
5-95
5 SETTINGS
5.4 FLEXLOGIC™
5
ELEMENT:
VTFF (Voltage
transformer fuse
failure)
SRC1 VT FUSE FAIL OP
SRC1 VT FUSE FAIL DPO
SRC1 VT FUSE FAIL VOL LOSS
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)
SRC2 VT FUSE FAIL to
SRC6 VT FUSE FAIL
Same set of operands as shown for SRC1 VT FUSE FAIL
ELEMENT:
Summator
SUMMATOR 1 OP
SUMMATOR 2 OP
↓
SUMMATOR 6 OP
The summator 1 result is greater than the summator 1 pickup
The summator 2 result is greater than the summator 2 pickup
↓
The summator 6 result is greater than the summator 6 pickup
ELEMENT:
Disconnect switch
SWITCH 1 OFF CMD
SWITCH 1 ON CMD
SWITCH 1
Φ
A BAD ST
SWITCH 1
Φ
A INTERM
SWITCH 1
Φ
A CLSD
SWITCH 1
Φ
A OPEN
SWITCH 1
Φ
B BAD ST
SWITCH 1
Φ
A INTERM
SWITCH 1
Φ
B CLSD
SWITCH 1
Φ
B OPEN
SWITCH 1
Φ
C BAD ST
SWITCH 1
Φ
A INTERM
SWITCH 1
Φ
C CLSD
SWITCH 1
Φ
C OPEN
SWITCH 1 BAD STATUS
SWITCH 1 CLOSED
SWITCH 1 OPEN
SWITCH 1 DISCREP
SWITCH 1 TROUBLE
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
SWITCH 2...
Same set of operands as shown for SWITCH 1
ELEMENT:
Synchrocheck
SYNC 1 DEAD S OP
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
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
SYNC 2
Same set of operands as shown for SYNC 1
ELEMENT:
Teleprotection
channel tests
TELEPRO CH1 FAIL
TELEPRO CH2 FAIL
TELEPRO CH1 ID FAIL
TELEPRO CH2 ID FAIL
TELEPRO CH1 CRC FAIL
TELEPRO CH2 CRC FAIL
TELEPRO CH1 PKT LOST
TELEPRO CH2 PKT LOST
Channel 1 failed
Channel 2 failed
The ID check for a peer relay on channel 1 has failed
The ID check for a peer relay on channel 2 has failed
CRC detected packet corruption on channel 1
CRC detected packet corruption on channel 2
CRC detected lost packet on channel 1
CRC detected lost packet on channel 2
ELEMENT:
Teleprotection
inputs/outputs
TELEPRO INPUT 1-1 On
↓
TELEPRO INPUT 1-16 On
TELEPRO INPUT 2-1 On
↓
TELEPRO INPUT 2-16 On
Flag is set, Logic =1
↓
Flag is set, Logic =1
Flag is set, Logic =1
↓
Flag is set, Logic =1
ELEMENT
Trip bus
TRIP BUS 1 PKP
TRIP BUS 1 OP
Asserted when the trip bus 1 element picks up.
Asserted when the trip bus 1 element operates.
TRIP BUS 2...
Same set of operands as shown for TRIP BUS 1
ELEMENT:
Underfrequency
UNDERFREQ 1 PKP
UNDERFREQ 1 OP
UNDERFREQ 1 DPO
Underfrequency 1 has picked up
Underfrequency 1 has operated
Underfrequency 1 has dropped out
UNDERFREQ 2 to 6
Same set of operands as shown for UNDERFREQ 1 above
Table 5–7: N60 FLEXLOGIC™ OPERANDS (Sheet 5 of 7)
OPERAND TYPE
OPERAND SYNTAX
OPERAND DESCRIPTION