GE Multilin D60 Line Distance Protection System 7-9
7 COMMANDS AND TARGETS 7.2 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 that Ethernet cable(s) are properly connected. Check that configuration for the SNTP server corre-
sponds to the actual server settings. Check connectivity to the server (ping the server IP address.
• 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.
• How often the test is performed: Upon initiation of a contact output state change.
• What to do: Verify the state of the output contact and contact the factory if the problem persists.
MAINTENANCE ALERT:
**Bad PTP Signal**
MAINTENANCE ALERT:
Port ## Failure
MAINTENANCE ALERT:
SNTP Failure
MAINTENANCE ALERT:
4L Discrepancy
To Next Page
Loading...
Need help?
General
