GE T35 UR Series, Инструкция по эксплуатации

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7-8 T35 Transformer Protection System GE Multilin
7.2 TARGETS 7 COMMANDS AND TARGETS
7
• Latched target message : No.
• Description of problem : A bad IRIG-B input signal has been detected.
• How often the test is performed : Monitored whenever an IRIG-B signal is received.
• What to do : Ensure the following:
– The IRIG-B cable is properly connected.
– Proper cable functionality (that is, check for physical damage or perform a continuity test).
– The IRIG-B receiver is functioning.
– Check the input signal level (it may be less than specification).
If none of these apply, then contact the factory.
• Latched target message : No.
• Description of problem : No PTP enabled port has good PTP signal input.
• How often the test is performed : Activated when no acceptable signal is being received.
• What to do : Ensure the following:
– The Ethernet cable(s) are properly connected.
– At least one PTP grandmaster-capable clock is functioning.
– If strict PP is enabled, that entire network is PP compliant.
– The network is delivering PTP messages to the relay.
• Latched target message : No.
• Description of problem : An Ethernet connection has failed.
• How often the test is performed : Monitored every five seconds.
• What to do : Check Ethernet connections. Port 1 is the primary port and port 2 is the secondary port.
• Latched target message : No.
• Description of problem : The SNTP server is not responding.
• How often the test is performed : Every 10 to 60 seconds.
• What to do : Check SNTP configuration and network connections.
• Latched target message : No.
• Description of problem : A discrepancy has been detected between the actual and desired state of a latching contact
output of an installed type “4L” module.
MAINTENANCE ALERT:
**Bad IRIG-B Signal**
MAINTENANCE ALERT:
**Bad PTP Signal**
MAINTENANCE ALERT:
Port ## Failure
MAINTENANCE ALERT:
SNTP Failure
MAINTENANCE ALERT:
4L Discrepancy