GE L90 Instruction Manual page 150

5.4 FLEXLOGIC™
Table 5–5: L90 FLEXLOGIC™ OPERANDS (Sheet 5 of 7)
OPERAND TYPE OPERAND SYNTAX
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: 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 TMRX PKP
POWER SWING TRIP
POWER SWING 50DD
POWER SWING INCOMING
POWER SWING OUTGOING
POWER SWING UN/BLOCK
ELEMENT: SELECTOR 1 POS Y
5
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
ELEMENT: SETTING GROUP ACT 1
Setting Group
SETTING GROUP ACT 6
ELEMENT: SRCx 50DD OP
Disturbance
Detector
ELEMENT: SRCx VT FUSE FAIL OP
VTFF (Voltage SRCx VT FUSE FAIL DPO
Transformer Fuse SRCx VT FUSE FAIL VOL LOSS
Failure)
ELEMENT: STUB BUS OP
Stub Bus
ELEMENT: SYNC 1 DEAD S OP
Synchrocheck 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
SYNC 2
FIXED OPERANDS Off
On
5-60
OPERAND DESCRIPTION
At least one phase of UV1 has picked up
At least one phase of UV1 has operated
At least one phase of UV1 has dropped out
Phase A of UV1 has picked up
Phase B of UV1 has picked up
Phase C of UV1 has picked up
Phase A of UV1 has operated
Phase B of UV1 has operated
Phase C of UV1 has operated
Phase A of UV1 has dropped out
Phase B of UV1 has dropped out
Phase C of UV1 has dropped out
Same set of operands as shown for PHASE UV1
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 x 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).
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 when the relay powers up and
synchronizes to the 3-bit input.
Same set of operands as shown above for SELECTOR 1
Setting Group 1 is active
↓
Setting Group 6 is active
Source x Disturbance Detector has operated
Source x VT Fuse Failure detector has operated
Source x VT Fuse Failure detector has dropped out
Source x has lost voltage signals (V2 above 25% or V1 below 70%
of nominal)
Stub Bus is operated
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
Same set of operands as shown for SYNC 1
Logic = 0. Does nothing and may be used as a delimiter in an equation list;
used as 'Disable' by other features.
Logic = 1. Can be used as a test setting.
L90 Line Differential Relay
↓
5 SETTINGS
GE Multilin