GE D90 Plus Instruction Manual page 373

CHAPTER 7: PROTECTION
PLUS
D90 LINE DISTANCE PROTECTION SYSTEM – INSTRUCTION MANUAL
LINE PICKUP LEO PKP...............................Asserted when the line pickup element line end open feature
LINE PICKUP OP ..........................................Asserted when the line pickup element operates.
LINE PICKUP PKP ........................................Asserted when the line pickup element picks up.
LINE PICKUP RCL TRIP..............................Asserted when the line pickup element operates from
LINE PICKUP UV PKP.................................Asserted when the line pickup undervoltage protection picks
Load encroachment operands
LOAD ENCRO DPO .....................................Asserted when the load encroachment element picks up.
LOAD ENCRO OP.........................................Asserted when the load encroachment element operates.
LOAD ENCRO PKP.......................................Asserted when the load encroachment element drops out.
Negative-sequence directional overcurrent operands
NEG SEQ DIR OC1 FWD...........................Asserted when the negative-sequence directional overcurrent
NEG SEQ DIR OC1 REV.............................Asserted when the negative-sequence directional overcurrent
NEG SEQ DIR OC2 FWD...........................Asserted when the negative-sequence directional overcurrent
NEG SEQ DIR OC2 REV.............................Asserted when the negative-sequence directional overcurrent
Negative-sequence instantaneous overcurrent operands
NEG SEQ IOC1 DPO ...................................Asserted when the negative-sequence instantaneous
NEG SEQ IOC1 OP.......................................Asserted when the negative-sequence instantaneous
NEG SEQ IOC1 PKP ....................................Asserted when the negative-sequence instantaneous
NEG SEQ IOC2..............................................The operands listed above are also available for negative-
Negative-sequence overvoltage operands
NEG SEQ OV DPO .......................................Asserted when the negative-sequence overvoltage element
NEG SEQ OV OP...........................................Asserted when the negative-sequence overvoltage element
NEG SEQ OV PKP ........................................Asserted when the negative-sequence overvoltage element
Negative-sequence time overcurrent operands
NEG SEQ TOC1 DPO..................................Asserted when the negative-sequence time overcurrent 1
NEG SEQ TOC1 OP .....................................Asserted when the negative-sequence time overcurrent 1
NEG SEQ TOC1 PKP ...................................Asserted when the negative-sequence time overcurrent 1
NEG SEQ TOC2.............................................The operands listed above are also available for negative-
picks up.
overreaching zone 2 when reclosing the line (zone 1 extension
functionality).
up.
1 element forward mode operates.
1 element reverse mode operates.
2 element forward mode operates.
2 element reverse mode operates.
overcurrent 1 element drops out.
overcurrent 1 element operates.
overcurrent 1 element picks up.
sequence instantaneous overcurrent 2.
drops out.
operates.
has picks up.
element drops out.
element operates.
element picks up.
sequence time overcurrent 2.
PROTECTION FLEXLOGIC™
365