GE T35, Инструкция по эксплуатации

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7-8 T35 TRANSFORMER PROTECTION SYSTEM – INSTRUCTION MANUAL
TARGETS MENU CHAPTER 7: COMMANDS AND TARGETS
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• How often the test is performed : Every second
.
• What to do : Check direct input and output configuration and wiring.
• 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 can 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 : 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
corresponds 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.
• Latched target message : No.
• Description of problem : A data item in a configurable GOOSE data set is oscillating.
• How often the test is performed : Upon scanning of each configurable GOOSE data set.
MAINTENANCE ALERT:
Bad IRIG-B Signal
MAINTENANCE ALERT:
**Bad PTP Signal**
MAINTENANCE ALERT:
SNTP Failure
MAINTENANCE ALERT:
4L Discrepancy
MAINTENANCE ALERT:
GGIO Ind xxx oscill