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Testing technique for power system protection

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Published on Oct 6, 2012

Construction diagram review and installation check; preparation of relays, review setting instructions; CT and VT tests; VT and CT secondary wiring checks; relay calibration; functional testing; primary and secondary injection tests; bus equipment visual check; coordination with dispatcher; primary phasing test, phase angle checks; in-service readings on protection circuits, on-load and at zero load; revise drawings and operating instructions.

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