GE D90 Plus - Page 431

CHAPTER 7: PROTECTION PROTECTION FLEXLOGIC
D90
PLUS
LINE DISTANCE PROTECTION SYSTEM – INSTRUCTION MANUAL 421
NEG SEQ DIR OC2 REV ............................. Asserted when the negative-sequence directional overcurrent
2 element reverse mode operates.
Negative-sequence instantaneous overcurrent operands
NEG SEQ IOC1 DPO ................................... Asserted when the negative-sequence instantaneous
overcurrent 1 element drops out.
NEG SEQ IOC1 OP....................................... Asserted when the negative-sequence instantaneous
overcurrent 1 element operates.
NEG SEQ IOC1 PKP .................................... Asserted when the negative-sequence instantaneous
overcurrent 1 element picks up.
NEG SEQ IOC2.............................................. The operands listed above are also available for negative-
sequence instantaneous overcurrent 2.
Negative-sequence overvoltage operands
NEG SEQ OV DPO ....................................... Asserted when the negative-sequence overvoltage element
drops out.
NEG SEQ OV OP........................................... Asserted when the negative-sequence overvoltage element
operates.
NEG SEQ OV PKP ........................................ Asserted when the negative-sequence overvoltage element
picks up.
Negative-sequence time overcurrent operands
NEG SEQ TOC1 DPO.................................. Asserted when the negative-sequence time overcurrent 1
element drops out.
NEG SEQ TOC1 OP ..................................... Asserted when the negative-sequence time overcurrent 1
element operates.
NEG SEQ TOC1 PKP ................................... Asserted when the negative-sequence time overcurrent 1
element picks up.
NEG SEQ TOC2............................................. The operands listed above are also available for negative-
sequence time overcurrent 2.
Neutral instantaneous overcurrent operands
NEUTRAL IOC1 DPO .................................. Asserted when the neutral instantaneous overcurrent 1
element drops out.
NEUTRAL IOC1 OP...................................... Asserted when the neutral instantaneous overcurrent 1
element operates.
NEUTRAL IOC1 PKP.................................... Asserted when the neutral instantaneous overcurrent 1
element picks up.
NEUTRAL IOC2 to 12................................. The operands listed above are also available for neutral
instantaneous overcurrent 2 through 12.
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
overvoltage 2 and 3.
Neutral time overcurrent operands
NEUTRAL TOC1 DPO ................................. Asserted when the neutral time overcurrent 1 element drops
out.
NEUTRAL TOC1 OP..................................... Asserted when the neutral time overcurrent 1 element
operates.
NEUTRAL TOC1 PKP .................................. Asserted when the neutral time overcurrent 1 element picks up.