GE 845 Instruction Manual page 466

FLEXLOGIC
ELEMENT OPERANDS
Non-Volatile Latch 1 to NV Latch 1 ON
16 NV Latch 1 OFF
Any PKP
Any OP
Any Trip
Any Alarm
NV Latch 2 to 16
Output Relays Trip ON
Close ON
Aux Relay [X] ON
BKR [X] Manual Open
BKR [X] Manual Close
Over-Frequency Overfreq 1 PKP
Overfreq 1 OP
Overfreq 2
Overload W1 Overload PKP
W2 Overload PKP
W3 Overload PKP
Overload PKP
Overload OP
Percent Differential Percent Diff PKP A
Percent Diff PKP B
Percent Diff PKP C
Percent Diff PKP
Percent Diff OP A
Percent Diff OP B
Percent Diff OP C
Percent Diff OP
Percent Diff Warn
Percent Diff Blocked
Percent Diff Sat A
Percent Diff Sat B
Percent Diff Sat C
Percent Diff Sat
Percent Diff Dir A
Percent Diff Dir B
Percent Diff Dir C
Percent Diff Dir
2nd Harm Diff A
2nd Harm Diff B
2nd Harm Diff C
5th Harm Diff A
5th Harm Diff B
5th Harm Diff C
Phase TOC Ph TOC 1 PKP A
Ph TOC 1 PKP B
Ph TOC 1 PKP C
Ph TOC 1 PKP
Ph TOC 1 OP A
Ph TOC 1 OP B
Ph TOC 1 OP C
Ph TOC 1 OP
PHASE TOC 2
PHASE TOC 2, PHASE TOC 3
Phase IOC Ph IOC 1 PKP A
Ph IOC 1 PKP B
Ph IOC 1 PKP C
Ph IOC 1 PKP
Ph IOC 1 OP A
Ph IOC 1 OP B
Ph IOC 1 OP C
Ph IOC 1 OP
Ph IOC 2
PHASE IOC 2 to PHASE IOC6
4–338
EVENT DESCRIPTION
The output of non-volatile latch 1 is On
The output of non-volatile latch 1 is Off
Any enabled protection or control element pickup
Any enabled protection or control element operated
Any operated element with Function selected as "Trip"
Any operated element with Function selected as "Alarm"
The same set of operands as per Non-Volatile Latch 1
Trip command to Relay 1 (TRIP) has been issued
Close command to Relay 2 (CLOSE) has been issued
Command to Aux Relay [X] has been issued
Either Local (using PBs) Open or Remote Open command has been issued
to the output relay selected under BKR[X] Trip Relay Select setpoint
Either Local (using PBs) Close or Remote Close command has been issued
to the output relay selected under BKR[X] Close Relay Select setpoint
Overfrequency 1 has picked up
Overfrequency 1 has operated
The same set of operands as per Overfreq 1
Winding 1 Transformer overload has picked up
Winding 2 Transformer overload has picked up
Winding 3 Transformer overload has picked up
At least one Winding Transformer overload has picked up
Transformer overload has operated
Percent A differential has picked up
Percent B differential has picked up
Percent C differential has picked up
At least one Percent differential element has picked up
Phase A differential has operated
Phase B differential has operated
Phase C differential has operated
At least one Percent differential element has operated
Percent differential current exceeded 0.5 x PKP for 10 seconds
Percent differential protection has been blocked
Percent differential flag triggered on phase A
Percent differential flag triggered on phase B
Percent differential flag triggered on phase C
Percent differential flag triggered
Percent differential directional flag triggered on phase A
Percent differential directional flag triggered on phase B
Percent differential directional flag triggered on phase C
Percent differential directional flag triggered
nd
2 harmonic Phase A diff. current block detected
nd
2 harmonic Phase B diff. current block detected
nd
2 harmonic Phase C diff. current block detected
th
5 harmonic Phase A diff. current block detected
th
5 harmonic Phase B diff. current block detected
th
5 harmonic Phase C diff. current block detected
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
At least one phase 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
At least one phase of phase time overcurrent 1 has operated
The same set of operands as per Phase TOC 1
Phase A of phase IOC 1 has picked up
Phase B of phase IOC 1 has picked up
Phase C of phase IOC 1 has picked up
At least one phase of phase IOC overcurrent 1 has picked up
Phase A of phase IOC 1 has operated
Phase B of phase IOC 1 has operated
Phase C of phase IOC 1 has operated
At least one phase of phase IOC 1 has operated
The same set of operands as per Phase IOC 1
845 TRANSFORMER PROTECTION SYSTEM – INSTRUCTION MANUAL
CHAPTER 4: SETPOINTS