ABB REL670 Installation And Commissioning Manual page 131
Line distance protection ied
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Also See for REL670:
- Product manual (150 pages) ,
- Operator's manual (120 pages) ,
- Commissioning manual (284 pages)
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8.3.2
Frequency protection
Extended testing
Procedure
1.
The test above can be repeated to check a positive setting of Start-
FreqGrad .
2.
The tests above can be repeated to check the time to reset.
3.
The tests above can be repeated to test the RESTORE signal, when
the frequency recovers from a low value.
Completing the test
Continue to test another function or end the test by changing the test mode setting to off. Restore
connections and settings to their original values, if they were changed for testing purposes.
Chapter 11
Verifying settings by secondary
injection
123
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