GE T60 Instruction Manual page 364

Transformer protection system
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FLEXLOGIC
Operand type
ELEMENT:
Breaker failure
ELEMENT:
Breaker restrike
ELEMENT:
Breaker control
5
ELEMENT:
CT fail
ELEMENT:
Digital counters
ELEMENT:
Digital elements
ELEMENT:
Frequency rate of
change
5-182
Operand syntax
BKR FAIL 1 RETRIPA
BKR FAIL 1 RETRIPB
BKR FAIL 1 RETRIPC
BKR FAIL 1 RETRIP
BKR FAIL 1 T1 OP
BKR FAIL 1 T2 OP
BKR FAIL 1 T3 OP
BKR FAIL 1 TRIP OP
BKR FAIL 2 to 6
BRK RESTRIKE 1 OP
BRK RESTRIKE 1 OP A
BRK RESTRIKE 1 OP B
BRK RESTRIKE 1 OP C
BKR RESTRIKE 2 to 6
BREAKER 1 OFF CMD
BREAKER 1 ON CMD
BREAKER 1 ΦA BAD ST
BREAKER 1 ΦA INTERM
BREAKER 1 ΦA CLSD
BREAKER 1 ΦA OPEN
BREAKER 1 ΦB BAD ST
BREAKER 1 ΦB INTERM
BREAKER 1 ΦB CLSD
BREAKER 1 ΦB OPEN
BREAKER 1 ΦC BAD ST
BREAKER 1 ΦC INTERM
BREAKER 1 ΦC CLSD
BREAKER 1 ΦC OPEN
BREAKER 1 BAD STATUS
BREAKER 1 CLOSED
BREAKER 1 OPEN
BREAKER 1 DISCREP
BREAKER 1 TROUBLE
BREAKER 1 MNL CLS
BREAKER 1 TRIP A
BREAKER 1 TRIP B
BREAKER 1 TRIP C
BREAKER 1 ANY P OPEN
BREAKER 1 ONE P OPEN
BREAKER 1 OOS
BREAKER 2 to 6
CT FAIL 1 PKP
CT FAIL 1 OP
CT FAIL 2 to 6
Counter 1 HI
Counter 1 EQL
Counter 1 LO
Counter 2 to 8
Dig Element 1 PKP
Dig Element 1 OP
Dig Element 1 DPO
Dig Element 2 to 48
FREQ RATE 1 PKP
FREQ RATE 1 DPO
FREQ RATE 1 OP
FREQ RATE 2 to 4
Operand description
Breaker failure 1 re-trip phase A (only for 1-pole schemes)
Breaker failure 1 re-trip phase B (only for 1-pole schemes)
Breaker failure 1 re-trip phase C (only for 1-pole schemes)
Breaker failure 1 re-trip 3-phase
Breaker failure 1 timer 1 is operated
Breaker failure 1 timer 2 is operated
Breaker failure 1 timer 3 is operated
Breaker failure 1 trip is operated
Same set of operands as shown for BKR FAIL 1
Breaker restrike detected in any phase of the breaker control 1 element
Breaker restrike detected in phase A of the breaker control 1 element
Breaker restrike detected in phase B of the breaker control 1 element
Breaker restrike detected in phase C of the breaker control 1 element
Same set of operands as shown for BKR RESTRIKE 1
Breaker 1 open command initiated
Breaker 1 close command initiated
Breaker 1 phase A bad status is detected (discrepancy between the 52/a and
52/b contacts)
Breaker 1 phase A intermediate status is detected (transition from one
position to another)
Breaker 1 phase A is closed
Breaker 1 phase A is open
Breaker 1 phase B bad status is detected (discrepancy between the 52/a and
52/b contacts)
Breaker 1 phase B intermediate status is detected (transition from one
position to another)
Breaker 1 phase B is closed
Breaker 1 phase B is open
Breaker 1 phase C bad status is detected (discrepancy between the 52/a and
52/b contacts)
Breaker 1 phase C intermediate status is detected (transition from one
position to another)
Breaker 1 phase C is closed
Breaker 1 phase C is open
Breaker 1 bad status is detected on any pole
Breaker 1 is closed
Breaker 1 is open
Breaker 1 has discrepancy
Breaker 1 trouble alarm
Breaker 1 manual close
Breaker 1 trip phase A command
Breaker 1 trip phase B command
Breaker 1 trip phase C command
At least one pole of breaker 1 is open
Only one pole of breaker 1 is open
Breaker 1 is out of service
Same set of operands as shown for BREAKER 1
CT fail has picked up
CT fail has dropped out
Same set of operands as per CT FAIL 1
Digital counter 1 output is 'more than' comparison value
Digital counter 1 output is 'equal to' comparison value
Digital counter 1 output is 'less than' comparison value
Same set of operands as shown for Counter 1
Digital Element 1 is picked up
Digital Element 1 is operated
Digital Element 1 is dropped out
Same set of operands as shown for Dig Element 1
The frequency rate of change 1 element has picked up
The frequency rate of change 1 element has dropped out
The frequency rate of change 1 element has operated
Same set of operands as shown for FREQ RATE 1
T60 TRANSFORMER PROTECTION SYSTEM – INSTRUCTION MANUAL
CHAPTER 5: SETTINGS

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