GE 845 Instruction Manual page 467

Transformer protection system
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CHAPTER 4: SETPOINTS
ELEMENT
OPERANDS
Phase Directional OC
Ph Dir OC REV A
Ph Dir OC REV B
Ph Dir OC REV C
Ph Dir OC REV
Phase UV
Ph UV 1 PKP
Ph UV 1 PKP A
Ph UV 1 PKP B
Ph UV 1 PKP C
Ph UV 1 OP
Ph UV 1 OP A
Ph UV 1 OP B
Ph UV 1 OP C
Ph UV 2
Phase OV
Ph OV 1 PKP
Ph OV 1 PKP A
Ph OV 1 PKP B
Ph OV 1 PKP C
Ph OV 1 OP
Ph OV 1 OP A
Ph OV 1 OP B
Ph OV 1 OP C
Ph OV 2
Power Factor
PF 1 Switch-In
PF 1 Switch-Out
PF 1 Switch-In OP
PF 1 Switch-Out OP
PF 2
Programmable
PB 1 ON
Pushbuttons
PB 1 OFF
Pushbuttons 2 and 3
Pulse Output
Pos Wthrs Pulse OP
Neg Wthrs Pulse OP
Pos Varh Pulse OP
Neg Varh Pulse OP
Relay Service
In-Service
Remote Input
Rem Ip # ON
Rem Ip # OFF
Remote Modbus Device FlexLogic Operand [X] On
FlexLogic Operand [X] Off
Resetting
Reset OP
Reset OP (PB)
Reset OP (Operand)
Reset OP (Comms)
Restricted Ground Fault RGF 1 PKP
RGF 1 OP
RGF 1 Superv ON
RGF 2 and RGF 3
RTD Temperature
RTD 1 Trip PKP
RTD 1 Trip OP
RTD 1 Alarm PKP
RTD 1 Alarm OP
RTD 1 Open
RTD 1 Shorted
RTD 2 to RTD 12
Hot RTD
RTD Trouble
RTD Trouble PKP
RTD Trouble OP
845 TRANSFORMER PROTECTION SYSTEM – INSTRUCTION MANUAL
EVENT DESCRIPTION
Phase A current in reverse direction
Phase B current in reverse direction
Phase C current in reverse direction
At least one phase current in reverse direction
At least one phase of phase undervoltage 1 has picked up
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
At least one phase of phase undervoltage 1 has operated
Phase A of phase undervoltage 1 has operated
Phase B of phase undervoltage 1 has operated
Phase C of phase undervoltage 1 has operated
The same set of operands as per Phase UV 1
At least one phase of phase overvoltage 1 has picked up
Phase A of phase overvoltage element 1 has picked up
Phase B of phase overvoltage element 1 has picked up
Phase C of phase overvoltage element 1 has picked up
At least one phase of phase overvoltage 1 has operated
Phase A of phase overvoltage element 1 has operated
Phase B of phase overvoltage element 1 has operated
Phase C of phase overvoltage element 1 has operated
The same set of operands as per Phase OV 1
The measured power factor has crossed the Switch-in setpoint
The measured power factor has crossed the Switch-Out setpoint
The PF1 Switch-In element operated
The PF1 Switch-Out element operated
The same set of operands as per PF 1
Pushbutton 1 ON state has been asserted
Pushbutton 1 OFF state has been asserted
The same set of operands as shown for Pushbutton 1
Positive Watthours pulse occurs at the end of the programed energy
increment
Negative Watthours pulse occurs at the end of the programed energy
increment
Positive VARhours pulse occurs at the end of the programed energy
increment
Negative VARhours pulse occurs at the end of the programed energy
increment
The relay is In-Service
# – any remote input number
[X] - the element number. Note the operand name will change depending
on what is programmed.
Reset command
Reset command initiated from a front panel pushbutton
Reset command initiated from a FlexLogic operand
Reset command initiated via communications
Restricted Ground Fault 1 has picked up
Restricted Ground Fault 1 has operated
The Restricted Ground Fault supervision has operated
Same set of operands as for RGF1
RTD 1 Trip has picked up. It is displayed as "RTD 1 PKP" if the Trip Function
is set to "Configurable".
RTD 1 Trip has operated. It is displayed as "RTD 1 OP" if the Trip Function is
set to "Configurable".
RTD 1 Alarm has picked up
RTD 1 Alarm has operated
RTD 1 sensor is detected open
RTD 1 sensor is detected shorted
Similar to RTD 1
Any RTD Alarm PKP operand has picked up.
RTD Trouble has picked up
RTD Trouble has operated
FLEXLOGIC
4–339

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