Channel Tests - 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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6.2 STATUS
PATH: ACTUAL VALUES
„
CHANNEL TESTS
„
6
Status information for 2 channels is shown here. The following is a brief description of each actual value:
CHANNEL 1/2 STATUS:
This represents the receiver status of each channel. If the value is "OK", the 87L Differential element is enabled and data is
being received from the remote terminal; If the value is "FAIL", the 87L element is enabled and data is not being received
from the remote terminal. If "n/a"., the 87L element is disabled.
CHANNEL 1/2 LOST PACKETS:
Current, timing and control data is transmitted to the remote terminals in data packets at a rate of 2 packets/cycle. The
number of lost packets represents data packets lost in transmission; this count can be reset by entering 0 on the keypad.
CHANNEL 1/2 LOCAL LOOPBACK STATUS:
The result of the local loopback test is displayed here.
CHANNEL 1/2 REMOTE LOOPBACK STATUS:
The result of the remote loopback test is displayed here.
CHANNEL 1/2 LOOP DELAY:
Displays the round trip channel delay (including loopback processing time of the remote relay) computed during a remote
loopback test under normal relay operation, in milliseconds (ms).
6-6
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STATUS
CHANNEL TESTS
CHANNEL 1
STATUS: n/a
CHANNEL 1 LOST
MESSAGE
PACKETS:
CHANNEL 1 LOCAL
MESSAGE
LOOPBCK STATUS: n/a
CHANNEL 1 REMOTE
MESSAGE
LOOPBCK STATUS: n/a
CHANNEL 1
MESSAGE
LOOP DELAY:
CHANNEL 2
MESSAGE
STATUS: n/a
CHANNEL 2 LOST
MESSAGE
PACKETS:
CHANNEL 2 LOCAL
MESSAGE
LOOPBCK STATUS: n/a
CHANNEL 2 REMOTE
MESSAGE
LOOPBCK STATUS: n/a
CHANNEL 2
MESSAGE
LOOP DELAY:
VALIDITY OF CHANNEL
MESSAGE
CONFIGURATION: FAIL
PFLL
MESSAGE
STATUS: n/a
L90 Line Differential Relay
Range: n/a, FAIL, OK
Range: 0 to 65535 in steps of 1
Reset count to 0 by entering 0 via the keypad.
0
Range: n/a, FAIL, OK
Range: n/a, FAIL, OK
0.0 ms
Range: n/a, FAIL, OK
Range: 0 to 65535 in steps of 1
Reset count to 0 by entering 0 via the keypad.
0
Range: n/a, FAIL, OK
Range: n/a, FAIL, OK
0.0 ms
Range: n/a, FAIL, OK
Range: n/a, FAIL, OK
6 ACTUAL VALUES
6.2.10 CHANNEL TESTS
GE Power Management
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