GE D60 - Page 475

GE Multilin D60 Line Distance Protection System 5-341
5 SETTINGS 5.7 CONTROL ELEMENTS
5
BLK1 FORCE TX STOP1-2: This setting defines the FlexLogic operand of a protection element that is used for identifying inter-
nal faults on the protected line, and thus, for stopping the blocking signal. Typically forward-looking under-reach distance
elements are used as BLK1 FORCE TX STOP.
i) DIRECTIONAL COMPARISON UNBLOCKING
PATH: SETTINGS  CONTROL ELEMENTS  PILOT SCHEMES  DCUB SCHEME
 DCUB SCHEME

DCUB SCHEME
FUNCTION: Disabled
Range: Disabled, Enabled
MESSAGE
DCUB BLOCK:
Off
Range: FlexLogic operand
MESSAGE
DCUB PERMISSIVE
ECHO: Disabled
Range: Disabled, Enabled, Custom
MESSAGE
DCUB ECHO COND:
Off
Range: FlexLogic operand
MESSAGE
GND DIR O/C FWD:
Off
Range: FlexLogic operand
MESSAGE
GND DIR O/C REV:
Off
Range: FlexLogic operand
MESSAGE
TRANS BLOCK PICKUP
DELAY: 0.020 s
Range: 0 to 65.535 s in steps of 0.001
MESSAGE
TRANS BLOCK RESET
DELAY: 0.090 s
Range: 0 to 65.535 s in steps of 0.001
MESSAGE
ECHO DURATION:
0.100 s
Range: 0 to 65.535 s in steps of 0.001
MESSAGE
ECHO LOCKOUT:
0.250 s
Range: 0 to 65.535 s in steps of 0.001
MESSAGE
LINE END OPEN PICKUP
DELAY: 0.050 s
Range: 0 to 65.535 s in steps of 0.001
MESSAGE
DCUB LOG PICKUP
DELAY: 0.008 s
Range: 0 to 65.535 s in steps of 0.001
MESSAGE
GUARD HEALTHY RESET
DELAY: 0.015 s
Range: 0 to 65.535 s in steps of 0.001
MESSAGE
DCUB LOG TRIP
WINDOW: 0.150 s
Range: 0 to 65.535 s in steps of 0.001
MESSAGE
DCUB SEAL-IN
DELAY: 0.010 s
Range: 0 to 65.535 s in steps of 0.001
MESSAGE
DCUB NO OF COMM
BITS: 1
Range: 1, 2, or 4
MESSAGE
DCUB RX1:
Off
Range: FlexLogic operand
MESSAGE
DCUB LOG1:
Off
Range: FlexLogic operand
MESSAGE
DCUB RX2:
Off
Range: FlexLogic operand
MESSAGE
DCUB LOG2:
Off
Range: FlexLogic operand