GE D90 Plus Instruction Manual page 374

PROTECTION FLEXLOGIC™
366
Neutral instantaneous overcurrent operands
NEUTRAL IOC1 DPO..................................Asserted when the neutral instantaneous overcurrent 1
NEUTRAL IOC1 OP .....................................Asserted when the neutral instantaneous overcurrent 1
NEUTRAL IOC1 PKP ...................................Asserted when the neutral instantaneous overcurrent 1
NEUTRAL IOC2 to 12.................................The operands listed above are also available for neutral
Neutral overvoltage operands
NEUTRAL OV1 DPO....................................Asserted when the neutral overvoltage 1 element drops out.
NEUTRAL OV1 OP.......................................Asserted when the neutral overvoltage 1 element operates.
NEUTRAL OV1 PKP.....................................Asserted when the neutral overvoltage 1 element picks up.
NEUTRAL OV2 to 3.....................................The operands listed above are also available for neutral
Neutral time overcurrent operands
NEUTRAL TOC1 DPO.................................Asserted when the neutral time overcurrent 1 element drops
NEUTRAL TOC1 OP ....................................Asserted when the neutral time overcurrent 1 element
NEUTRAL TOC1 PKP ..................................Asserted when the neutral time overcurrent 1 element picks up.
NEUTRAL TOC 2 to 6 .................................The operands listed above are also available for neutral time
Neutral directional overcurrent operands
NTRL DIR OC1 FWD...................................Asserted when the neutral directional overcurrent 1 element
NTRL DIR OC1 REV.....................................Asserted when the neutral directional overcurrent 1 element
NTRL DIR OC2 FWD...................................Asserted when the neutral directional overcurrent 2 element
NTRL DIR OC2 REV.....................................Asserted when the neutral directional overcurrent 2 element
Open pole detector operands
OPEN POLE BKR ΦA OPEN .....................Asserted when an open pole condition is detected on phase A,
OPEN POLE BKR ΦB OPEN .....................Asserted when an open pole condition is detected on phase B,
OPEN POLE BKR ΦC OPEN .....................Asserted when an open pole condition is detected on phase C,
OPEN POLE BLK AB ...................................Asserted when the blocking signal for the AB phase distance
OPEN POLE BLK BC ...................................Asserted when the blocking signal for the BC phase distance
OPEN POLE BLK CA ...................................Asserted when the blocking signal for the CA phase distance
OPEN POLE BLK N......................................Asserted when the blocking signal for the neutral, ground, and
OPEN POLE OP ............................................Asserted when the open pole detector operates.
OPEN POLE OP ΦA.....................................Asserted when an open pole condition is detected in phase A.
OPEN POLE OP ΦB.....................................Asserted when an open pole condition is detected in phase B.
element drops out.
element operates.
element picks up.
instantaneous overcurrent 2 through 12.
overvoltage 2 and 3.
out.
operates.
overcurrent 2 through 6.
forward mode operates.
reverse mode operates.
forward mode operates.
reverse mode operates.
based on breaker auxiliary contacts.
based on breaker auxiliary contacts.
based on breaker auxiliary contacts.
elements is established.
elements is established.
elements is been established.
negative-sequence overcurrent elements is established.
PLUS
D90 LINE DISTANCE PROTECTION SYSTEM – INSTRUCTION MANUAL
CHAPTER 7: PROTECTION