Line Pickup - GE D30 Instruction Manual

Line distance protection system
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GROUPED ELEMENTS
If the device incorrectly switches to group 1 after power cycling, upgrade the firmware to version 7.31 or later to correct
this issue.

5.7.3 Line pickup

SETTINGS  GROUPED ELEMENTS  SETTING GROUP 1(6)  LINE PICKUP
 LINE PICKUP
5
The line pickup feature uses a combination of undercurrent and undervoltage to identify a line that has been de-energized
(line end open). Alternately assign a FlexLogic operand to the
Three instantaneous overcurrent elements are used to identify a previously de-energized line that has been closed onto a
fault. Faults other than close-in faults can be identified satisfactorily with the distance elements.
Co-ordination features are included to ensure satisfactory operation when high-speed automatic reclosure (AR) is
employed. The
AR CO-ORD DELAY
reclose. Co-ordination is achieved by all of the
times out. The
CO-ORD DELAY
implemented.
5-154
LINE PICKUP
FUNCTION: Disabled
LINE PICKUP SIGNAL
SOURCE: SRC 1
PHASE IOC LINE
PICKUP: 1.000 pu
LINE PICKUP UV PKP:
0.700 pu
LINE END OPEN PICKUP
DELAY: 0.150 s
LINE END OPEN RESET
DELAY: 0.090 s
LINE PICKUP OV PKP
DELAY: 0.040 s
AR CO-ORD BYPASS:
Enabled
AR CO-ORD PICKUP
DELAY: 0.045 s
AR CO-ORD RESET
DELAY: 0.005 s
TERMINAL OPEN:
Off
AR ACCELERATE:
Off
LINE PICKUP DISTANCE
TRIP: Enabled
LINE PICKUP BLOCK:
Off
LINE PICKUP
TARGET: Self-reset
LINE PICKUP
EVENTS: Disabled
setting allows the overcurrent setting to be below the expected load current seen after
LINE PICKP UV
setting is normally enabled. It is disabled if high speed autoreclosure is
AR CO-ORD BYPASS
Range: Disabled, Enabled
Range: SRC 1, SRC 2
Range: 0.000 to 30.000 pu in steps of 0.001
Range: 0.000 to 3.000 pu in steps of 0.001
Range: 0.000 to 65.535 s in steps of 0.001
Range: 0.000 to 65.535 s in steps of 0.001
Range: 0.000 to 65.535 s in steps of 0.001
Range: Disabled, Enabled
Range: 0.000 to 65.535 s in steps of 0.001
Range: 0.000 to 65.535 s in steps of 0.001
Range: FlexLogic operand
Range: FlexLogic operand
Range: Disabled, Enabled
Range: FlexLogic operand
Range: Self-reset, Latched, Disabled
Range: Disabled, Enabled
setting that specifies the terminal status.
TERMINAL OPEN
elements resetting and blocking the trip path before the
D30 LINE DISTANCE PROTECTION SYSTEM – INSTRUCTION MANUAL
CHAPTER 5: SETTINGS
AR

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