GE D90 Plus Instruction Manual page 441

CHAPTER 8: AUTOMATION
PLUS
D90 LINE DISTANCE PROTECTION SYSTEM – INSTRUCTION MANUAL
DISC1A INTERMED .....................................Asserted when breaker 1 pole A is in transition between the
DISC1A OPENED .........................................Asserted when disconnect 1 pole A is opened.
DISC1B BAD STATE.....................................Asserted when the normally open and normally closed breaker
DISC1B CLOSED ..........................................Asserted when disconnect 1 pole B is closed.
DISC1B INTERMED .....................................Asserted when breaker 1 pole B is in transition between the
DISC1B OPENED .........................................Asserted when disconnect 1 pole B is opened.
DISC1C BAD STATE.....................................Asserted when the normally open and normally closed breaker
DISC1C CLOSED ..........................................Asserted when disconnect 1 pole C is closed.
DISC1C INTERMED.....................................Asserted when breaker 1 pole C is in transition between the
DISC1C OPENED .........................................Asserted when disconnect 1 pole C is opened.
DISC2 ...............................................................The operands listed above are available for all disconnects.
Local-remote control scheme operands
L/R L ON..........................................................Asserted while the local control scheme is enabled.
L/R R ON.........................................................Asserted while the remote control scheme is enabled.
Selector switch operands
SELECTOR 1 ALARM...................................Asserted when the position of selector 1 has been pre-selected
SELECTOR 1 BIT 0.......................................Represents the first bit of the three-bit word encoding position
SELECTOR 1 BIT 1.......................................Represents the second bit of the three-bit word encoding
SELECTOR 1 BIT 2.......................................Represents the third bit of the three-bit word encoding position
SELECTOR 1 BIT ALARM...........................Asserted when the position of selector 1 has been pre-selected
SELECTOR 1 POS 1.....................................Asserted when selector switch 1 is in position 1.
SELECTOR 1 POS 2.....................................Asserted when selector switch 1 is in position 2.
SELECTOR 1 POS 3.....................................Asserted when selector switch 1 is in position 3.
SELECTOR 1 POS 4.....................................Asserted when selector switch 1 is in position 4.
SELECTOR 1 POS 5.....................................Asserted when selector switch 1 is in position 5.
SELECTOR 1 POS 6.....................................Asserted when selector switch 1 is in position 6.
SELECTOR 1 POS 7.....................................Asserted when selector switch 1 is in position 7.
SELECTOR 1 PWR ALARM .......................Asserted when the position of selector switch 1 is
SELECTOR 1 STP ALARM..........................Asserted when the position of selector 1 has been pre-selected
SELECTOR 2...................................................The same set of operands as shown above are available for
Synchrocheck operands
SYNC 1 CLS DPO.........................................Asserted when the synchrocheck 1 close has dropped out.
SYNC 1 CLS OP ............................................Asserted when the synchrocheck 1 close has operated.
SYNC 1 DEAD S DPO.................................Asserted when the synchrocheck 1 dead source has dropped
opened and closed states.
indications disagree for pole B of disconnect 1.
opened and closed states.
indications disagree for pole C of disconnect 1.
opened and closed states.
but not acknowledged.
of selector 1.
position of selector 1.
of selector 1.
with the three-bit control input but not acknowledged.
undetermined or restored from memory when the relay powers
up and synchronizes to the three-bit input.
with the stepping up control input but not acknowledged.
selector switch 2.
out.
AUTOMATION LOGIC
433