GE D90 Plus Instruction Manual page 376

PROTECTION FLEXLOGIC™
368
PHASE IOC1 OP A.......................................Asserted when phase A of the phase instantaneous
PHASE IOC1 OP B.......................................Asserted when phase B of the phase instantaneous
PHASE IOC1 OP C.......................................Asserted when phase C of the phase instantaneous
PHASE IOC1 PKP.........................................Asserted when at least one phase of the phase instantaneous
PHASE IOC1 PKP A.....................................Asserted when phase A of the phase instantaneous
PHASE IOC1 PKP B.....................................Asserted when phase B of the phase instantaneous
PHASE IOC1 PKP C.....................................Asserted when phase C of the phase instantaneous
PHASE IOC2 to 12 ......................................Same set of operands as shown above for the phase
Phase overvoltage operands
PHASE OV1 DPO.........................................Asserted when at least one phase of the phase overvoltage 1
PHASE OV1 DPO A.....................................Asserted when phase A of the phase overvoltage 1 element
PHASE OV1 DPO B.....................................Asserted when phase B of the phase overvoltage 1 element
PHASE OV1 DPO C.....................................Asserted when phase C of the phase overvoltage 1 element
PHASE OV1 OP ............................................Asserted when at least one phase of the phase overvoltage 1
PHASE OV1 OP A ........................................Asserted when phase A of the phase overvoltage 1 element
PHASE OV1 OP B ........................................Asserted when phase B of the phase overvoltage 1 element
PHASE OV1 OP C ........................................Asserted when phase C of the phase overvoltage 1 element
PHASE OV1 PKP ..........................................Asserted when at least one phase of the phase overvoltage 1
PHASE OV1 PKP A ......................................Asserted when phase A of the phase overvoltage 1 element
PHASE OV1 PKP B ......................................Asserted when phase B of the phase overvoltage 1 element
PHASE OV1 PKP C ......................................Asserted when phase C of the phase overvoltage 1 element
PHASE OV2....................................................Same set of operands as shown above for the phase
Phase select operands
PHASE SELECT 3P.......................................Asserted when a three-phase symmetrical fault is detected.
PHASE SELECT AB ......................................Asserted when a phase A to B fault is detected.
PHASE SELECT ABG...................................Asserted when a phase A to B to ground fault is detected.
PHASE SELECT AG......................................Asserted when a phase A to ground fault is detected.
PHASE SELECT BC......................................Asserted when a phase B to C fault is detected.
PHASE SELECT BCG...................................Asserted when a phase B to C to ground fault is detected.
overcurrent 1 element operates.
overcurrent 1 element operates.
overcurrent 1 element operates.
overcurrent 1 element picks up.
overcurrent 1 element picks up.
overcurrent 1 element picks up.
overcurrent 1 element picks up.
instantaneous overcurrent elements 2 through 12.
element drops out.
drops out.
drops out.
drops out.
element operates.
operates.
operates.
operates.
element picks up.
picks up.
picks up.
picks up.
overvoltage 2 element.
PLUS
D90 LINE DISTANCE PROTECTION SYSTEM – INSTRUCTION MANUAL
CHAPTER 7: PROTECTION