GE D30 Instruction Manual page 439
Line distance protection system
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Also See for D30:
- Instruction manual (686 pages) ,
- Communications manual (532 pages) ,
- Communications manual (526 pages)
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CHAPTER 7: COMMANDS AND TARGETS
TEMP MONITOR:
OVER TEMPERATURE
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Latched target message: Yes.
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Description of problem: The ambient temperature is greater than the maximum operating temperature (+80°C).
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How often the test is performed: Every hour.
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What to do: Remove the D30 from service and install in a location that meets operating temperature standards.
UNEXPECTED RESTART:
Press "RESET" key
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Latched target message: Yes.
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Description of problem: Abnormal restart from modules being removed or inserted while the D30 is powered-up, when
there is an abnormal DC supply, or as a result of internal relay failure.
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How often the test is performed: Event driven.
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What to do: Contact the factory.
FIRST ETHERNET FAIL
SECOND ETHERNET FAIL
THIRD ETHERNET FAIL
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Latched target message: Yes.
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Description of problem: A link loss detection on an Ethernet port. The link loss is due to unplugging the cable or the
switch port being down.
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How often the test is performed:
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What to do: Check the connection.
WRONG TRANSCEIVER
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Latched target message: Yes.
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Description of problem: The type of SFP does not match the CPU type.
T-type CPU = All ports support fiber SFPs only
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What to do: A web page "SFP Transceiver Information" is provided. This page displays the type of the SFP in it. This data
is to be used with the CPU type to know the cause of the problem.
SFP MODULE x FAIL
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Latched target message: No.
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Description of problem: A faulty SFP or unplugging the SFP would generate this self test.
What to do: The web page "SFP Transceiver Information" described in the previous section applies for this self test as well.
The "SFP Module Fail" has higher priority and it suppresses the "Ethernet Fail" target message. The "SFP MODULE FAIL
FUNCTION" setting enables/disables this self test. The target for this self test is priority-based, with the third one being the
highest priority. For example, if all three SFP modules fail, then the third SFP target is activated. If the third SFP module
failure resolves, then the second SFP target is activated.
D30 LINE DISTANCE PROTECTION SYSTEM – INSTRUCTION MANUAL
TARGETS MENU
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7-9
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