GE D90 Plus - Page 428

418 D90
PLUS
LINE DISTANCE PROTECTION SYSTEM – INSTRUCTION MANUAL
PROTECTION FLEXLOGIC CHAPTER 7: PROTECTION
DCUB TRIP A................................................. Asserted when the directional comparison unblocking scheme
operates to trip phase A.
DCUB TRIP B................................................. Asserted when the directional comparison unblocking scheme
operates to trip phase B.
DCUB TRIP C................................................. Asserted when the directional comparison unblocking scheme
operates to trip phase C.
DCUB TRIP 3P............................................... Asserted when the directional comparison unblocking scheme
operates to trip all three phases.
DCUB TX1 ...................................................... Asserted when the directional comparison unblocking scheme
asserts transmit bit 1.
DCUB TX2 ...................................................... Asserted when the directional comparison unblocking scheme
asserts transmit bit 2.
DCUB TX3 ...................................................... Asserted when the directional comparison unblocking scheme
asserts transmit bit 3.
DCUB TX4 ...................................................... Asserted when the directional comparison unblocking scheme
asserts transmit bit 4.
Directional comparison blocking scheme operands
DIR BLOCK OP.............................................. Asserted when the directional blocking scheme operates.
DIR BLOCK TRIP A....................................... Asserted when the directional blocking scheme operates to trip
phase A.
DIR BLOCK TRIP B....................................... Asserted when the directional blocking scheme operates to trip
phase B.
DIR BLOCK TRIP C....................................... Asserted when the directional blocking scheme operates to trip
phase C.
DIR BLOCK TRIP 3P.................................... Asserted when the directional blocking scheme operates to trip
all three phases.
DIR BLOCK TX INIT ..................................... Asserted when the directional blocking signal is initiated.
DIR BLOCK TX1 STOP................................ Asserted when the directional blocking scheme de-asserts
transmit bit 1.
DIR BLOCK TX2 STOP................................ Asserted when the directional blocking scheme de-asserts
transmit bit 2.
DIR BLOCK TX3 STOP................................ Asserted when the directional blocking scheme de-asserts
transmit bit 3.
DIR BLOCK TX4 STOP................................ Asserted when the directional blocking scheme de-asserts
transmit bit 4.
Direct underreaching transfer trip operands
DUTT OP......................................................... Asserted when the direct underreaching transfer trip scheme
operates.
DUTT TRIP A.................................................. Asserted when the direct underreaching transfer trip scheme
operates to trip phase A.
DUTT TRIP B.................................................. Asserted when the direct underreaching transfer trip scheme
operates to trip phase B.
DUTT TRIP C.................................................. Asserted when the direct underreaching transfer trip scheme
operates to trip phase C.
DUTT TRIP 3P ............................................... Asserted when the direct underreaching transfer trip scheme
operates to trip all three phases.
DUTT TX1 ....................................................... Asserted when the direct underreaching transfer trip scheme
asserts transmit bit 1.
DUTT TX2 ....................................................... Asserted when the direct underreaching transfer trip scheme
asserts transmit bit 2.