5-118 T35 Transformer Protection System GE Multilin
5.5 FLEXLOGIC 5 SETTINGS
5
ELEMENT:
Disconnect switch
SWITCH 1 OFF CMD
SWITCH 1 ON CMD
SWITCH 1 ΦA BAD ST
SWITCH 1 ΦA INTERM
SWITCH 1 ΦA CLSD
SWITCH 1 ΦA OPEN
SWITCH 1 ΦB BAD ST
SWITCH 1 ΦC INTERM
SWITCH 1 ΦB CLSD
SWITCH 1 ΦB OPEN
SWITCH 1 ΦC BAD ST
SWITCH 1 ΦA INTERM
SWITCH 1 ΦC CLSD
SWITCH 1 ΦC 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 89/a and 89/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 89/a and 89/b contacts)
Disconnect switch 1 phase C 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 89/a and 89/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 to 24 Same set of operands as shown for SWITCH 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:
Thermal overload
protection
THERMAL PROT 1 PKP
THERMAL PROT 1 OP
Thermal overload protection 1 picked up
Thermal overload protection 1 operated
THERMAL PROT 2 Same set of operands as shown for THERMAL PROT 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 to 6 Same set of operands as shown for TRIP BUS 1
ELEMENT:
Transformer
instantaneous
differential
XFMR INST DIFF OP
XFMR INST DIFF OP A
XFMR INST DIFF OP B
XFMR INST DIFF OP C
At least one phase of transformer instantaneous differential has operated
Phase A of transformer instantaneous differential has operated
Phase B of transformer instantaneous differential has operated
Phase C of transformer instantaneous differential has operated
ELEMENT:
Transformer percent
differential
XFMR PCNT DIFF PKP A
XFMR PCNT DIFF PKP B
XFMR PCNT DIFF PKP C
XFMR PCNT DIFF 2ND A
XFMR PCNT DIFF 2ND B
XFMR PCNT DIFF 2ND C
XFMR PCNT DIFF 5TH A
XFMR PCNT DIFF 5TH B
XFMR PCNT DIFF 5TH C
XFMR PCNT DIFF OP
XFMR PCNT DIFF OP A
XFMR PCNT DIFF OP B
XFMR PCNT DIFF OP C
Transformer percent differential protection has picked up in phase A
Transformer percent differential protection has picked up in phase B
Transformer percent differential protection has picked up in phase C
The 2nd harmonic of transformer percent differential has blocked phase A
The 2nd harmonic of transformer percent differential has blocked phase B
The 2nd harmonic of transformer percent differential has blocked phase C
The 5th harmonic of transformer percent differential has blocked phase A
The 5th harmonic of transformer percent differential has blocked phase B
The 5th harmonic of transformer percent differential has blocked phase C
At least one phase of transformer percent differential has operated
Phase A of transformer percent differential has operated
Phase B of transformer percent differential has operated
Phase C of transformer percent differential has operated
FIXED OPERANDS Off Logic = 0. Does nothing and may be used as a delimiter in an equation list;
used as ‘Disable’ by other features.
On Logic = 1. Can be used as a test setting.
Table 5–10: T35 FLEXLOGIC OPERANDS (Sheet 3 of 5)
OPERAND TYPE OPERAND SYNTAX OPERAND DESCRIPTION
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