GE T60 Instruction Manual page 370

FLEXLOGIC
Operand type
ELEMENT:
Underfrequency
ELEMENT:
Volts per hertz
ELEMENT:
Transformer aging
factor
ELEMENT:
Transformer
instantaneous
differential
ELEMENT:
Hottest-spot
temperature
ELEMENT:
Transformer loss of
life
ELEMENT:
Transformer percent
differential
5
FIXED OPERANDS
INPUTS/OUTPUTS:
Contact inputs
INPUTS/OUTPUTS:
Contact outputs,
current
(from detector on
form-A output only)
5-188
Operand syntax
TRIP BUS 2 to 6
UNDERFREQ 1 PKP
UNDERFREQ 1 OP
UNDERFREQ 1 DPO
UNDERFREQ 2 to 6
VOLT PER HERTZ 1 PKP
VOLT PER HERTZ 1 OP
VOLT PER HERTZ 1 DPO
VOLT PER HERTZ 2
XFMR AGING FCTR PKP
XFMR AGING FCTR OP
XFMR AGING FCTR DPO
XFMR INST DIFF OP
XFMR INST DIFF OP A
XFMR INST DIFF OP B
XFMR INST DIFF OP C
XFMR HST-SPOT °C PKP
XFMR HST-SPOT °C OP
XFMR HST-SPOT °C DPO
XFMR LIFE LOST PKP
XFMR LIFE LOST OP
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
XFMR PCNT DIFF SAT A
XFMR PCNT DIFF SAT B
XFMR PCNT DIFF SAT C
XFMR PCNT DIFF DIR A
XFMR PCNT DIFF DIR B
XFMR PCNT DIFF DIR C
XFMR PCNT DIFF WARN
Off
On
Cont Ip 1 On
Cont Ip 2 On
↓
Cont Ip 1 Off
Cont Ip 2 Off
↓
Cont Ip 96 On
Cont Ip 96 Off
Cont Op 1 IOn
Cont Op 2 IOn
↓
Cont Op 64 IOn
Operand description
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
The volts per hertz element 1 has picked up
The volts per hertz element 1 has operated
The volts per hertz element 1 has dropped out
Same set of operands as VOLT PER HERTZ 1
The transformer aging factor element has picked up
The transformer aging factor element has operated
The transformer aging factor element has dropped out
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
The hottest-spot temperature element has picked up
The hottest-spot temperature element has operated
The hottest-spot temperature element has dropped out
The transformer loss of life element has picked up
The transformer loss of life element has operated
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
Transformer percent differential SAT flag has triggered on phase A
Transformer percent differential SAT flag has triggered on phase B
Transformer percent differential SAT flag has triggered on phase C
Transformer percent differential DIR flag has triggered on phase A
Transformer percent differential DIR flag has triggered on phase B
Transformer percent differential DIR flag has triggered on phase C
Transformer percent differential current has exceeded 0.5xPKP for 10s
Logic = 0. Does nothing and can be used as a delimiter in an equation list;
used as 'Disable' by other features.
Logic = 1. Can be used as a test setting.
(does not appear unless ordered)
(does not appear unless ordered)
↓
(does not appear unless ordered)
(does not appear unless ordered)
↓
(does not appear unless ordered)
(does not appear unless ordered)
(does not appear unless ordered)
(does not appear unless ordered)
↓
(does not appear unless ordered)
T60 TRANSFORMER PROTECTION SYSTEM – INSTRUCTION MANUAL
CHAPTER 5: SETTINGS