GE L90 Instruction Manual page 258

Ur series line current differential system
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5.5 FLEXLOGIC™
Table 5–13: L90 FLEXLOGIC™ OPERANDS (Sheet 6 of 10)
OPERAND TYPE
OPERAND SYNTAX
ELEMENT:
PHASE TOC1 PKP
Phase time
PHASE TOC1 OP
overcurrent
PHASE TOC1 DPO
PHASE TOC1 PKP A
PHASE TOC1 PKP B
PHASE TOC1 PKP C
PHASE TOC1 OP A
PHASE TOC1 OP B
PHASE TOC1 OP C
PHASE TOC1 DPO A
PHASE TOC1 DPO B
PHASE TOC1 DPO C
PHASE TOC2
ELEMENT:
PHASE UV1 PKP
Phase undervoltage
PHASE UV1 OP
PHASE UV1 DPO
PHASE UV1 PKP A
PHASE UV1 PKP B
PHASE UV1 PKP C
PHASE UV1 OP A
PHASE UV1 OP B
PHASE UV1 OP C
PHASE UV1 DPO A
PHASE UV1 DPO B
PHASE UV1 DPO C
PHASE UV2
ELEMENT:
PMU 1 CURR TRIGGER
Synchrophasor
PMU 1 FREQ TRIGGER
phasor
PMU 1 POWER TRIGGER
5
measurement unit
PMU 1 ROCOF TRIGGER
(PMU)
PMU 1 VOLT TRIGGER
PMU 1 TRIGGERED
ELEMENT:
PMU ONE-SHOT EXPIRED
Synchrophasor one-
shot
PMU ONE-SHOT OP
PMU ONE-SHOT PENDING
ELEMENT:
POTT OP
POTT
POTT TX
(Permissive
overreach transfer
trip)
ELEMENT:
POWER SWING OUTER
Power swing detect
POWER SWING MIDDLE
POWER SWING INNER
POWER SWING BLOCK
POWER SWING TMR1 PKP
POWER SWING TMR2 PKP
POWER SWING TMR3 PKP
POWER SWING TMR4 PKP
POWER SWING TRIP
POWER SWING 50DD
POWER SWING INCOMING
POWER SWING OUTGOING
POWER SWING UN/BLOCK
ELEMENT:
SELECTOR 1 POS Y
Selector switch
SELECTOR 1 BIT 0
SELECTOR 1 BIT 1
SELECTOR 1 BIT 2
SELECTOR 1 STP ALARM
SELECTOR 1 BIT ALARM
SELECTOR 1 ALARM
SELECTOR 1 PWR ALARM
SELECTOR 2
5-112
OPERAND DESCRIPTION
At least one phase of phase time overcurrent 1 has picked up
At least one phase of phase time overcurrent 1 has operated
All phases of phase time overcurrent 1 have dropped out
Phase A of phase time overcurrent 1 has picked up
Phase B of phase time overcurrent 1 has picked up
Phase C of phase time overcurrent 1 has picked up
Phase A of phase time overcurrent 1 has operated
Phase B of phase time overcurrent 1 has operated
Phase C of phase time overcurrent 1 has operated
Phase A of phase time overcurrent 1 has dropped out
Phase B of phase time overcurrent 1 has dropped out
Phase C of phase time overcurrent 1 has dropped out
Same set of operands as shown for PHASE TOC1
At least one phase of phase undervoltage 1 has picked up
At least one phase of phase undervoltage 1 has operated
All phases of phase undervoltage 1 have dropped out
Phase A of phase undervoltage 1 has picked up
Phase B of phase undervoltage 1 has picked up
Phase C of phase undervoltage 1 has picked up
Phase A of phase undervoltage 1 has operated
Phase B of phase undervoltage 1 has operated
Phase C of phase undervoltage 1 has operated
Phase A of phase undervoltage 1 has dropped out
Phase B of phase undervoltage 1 has dropped out
Phase C of phase undervoltage 1 has dropped out
Same set of operands as shown for PHASE UV1
Overcurrent trigger of phasor measurement unit 1 has operated
Abnormal frequency trigger of phasor measurement unit 1 has operated
Overpower trigger of phasor measurement unit 1 has operated
Rate of change of frequency trigger of phasor measurement unit 1 has
operated
Abnormal voltage trigger of phasor measurement unit 1 has operated
Phasor measurement unit 1 triggered; no events or targets are generated by
this operand
Indicates the one-shot operation has been executed, and the present time is
at least 30 seconds past the scheduled one-shot time
Indicates the one-shot operation and remains asserted for 30 seconds
afterwards
Indicates the one-shot operation is pending; that is, the present time is before
the scheduled one-shot time
Permissive over-reaching transfer trip has operated
Permissive signal sent
Positive-sequence impedance in outer characteristic
Positive-sequence impedance in middle characteristic
Positive-sequence impedance in inner characteristic
Power swing blocking element operated
Power swing timer 1 picked up
Power swing timer 2 picked up
Power swing timer 3 picked up
Power swing timer 4 picked up
Out-of-step tripping operated
The power swing element detected a disturbance other than power swing
An unstable power swing has been detected (incoming locus)
An unstable power swing has been detected (outgoing locus)
Asserted when a fault occurs after the power swing blocking condition has
been established
Selector switch 1 is in Position Y (mutually exclusive operands)
First bit of the 3-bit word encoding position of selector 1
Second bit of the 3-bit word encoding position of selector 1
Third bit of the 3-bit word encoding position of selector 1
Position of selector 1 has been pre-selected with the stepping up control
input but not acknowledged
Position of selector 1 has been pre-selected with the 3-bit control input but
not acknowledged
Position of selector 1 has been pre-selected but not acknowledged
Position of selector switch 1 is undetermined or restored from memory when
the relay powers up and synchronizes to the three-bit input
Same set of operands as shown above for SELECTOR 1
L90 Line Current Differential System
5 SETTINGS
GE Multilin

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