Line Pickup - GE UR Series Instruction Manual
Line differential relay
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Also See for UR Series:
- Instruction manual (652 pages) ,
- Manual (433 pages) ,
- Release notes (33 pages)
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5.5 GROUPED ELEMENTS
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PATH: SETTINGS
GROUPED ELEMENTS
„
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). Three instantaneous overcurrent elements are used to identify a previously de-energized line that has
been closed onto a fault which could be due to maintenance grounds that have not been removed. Faults other than close-
in faults can be identified satisfactorily by the distance elements which initially will be self or faulted phase polarized and
then become memory polarized when a satisfactory memory signal is available.
5-58
Figure 5–19: STUB BUS SCHEME LOGIC
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SETTING GROUP 1(8)
LINE PICKUP
FUNCTION: Disabled
LINE PICKUP SIGNAL
MESSAGE
SOURCE: SRC 1
PHASE IOC LINE
MESSAGE
PICKUP: 1.000 pu
POS SEQ UV
MESSAGE
PICKUP: 0.700 pu
LINE END OPEN PICKUP
MESSAGE
DELAY:
0.150 s
LINE END OPEN RESET
MESSAGE
DELAY:
0.090 s
POS SEQ OV PICKUP
MESSAGE
DELAY:
0.040 s
AR CO-ORD BYPASS:
MESSAGE
Enabled
AR CO-ORD PICKUP
MESSAGE
DELAY:
0.045 s
AR CO-ORD RESET
MESSAGE
DELAY:
0.005 s
LINE PICKUP BLOCK:
MESSAGE
Off
LINE PICKUP
MESSAGE
TARGET: Self-reset
LINE PICKUP
MESSAGE
EVENTS: Disabled
L90 Line Differential Relay
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LINE PICKUP
Range: Disabled, Enabled
Range: SRC 1, SRC 2,..., SRC 6
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: Self-reset, Latched, Disabled
Range: Disabled, Enabled
5 SETTINGS
5.5.6 LINE PICKUP
GE Power Management
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