Friday, October 15, 2010

Tips to test -1

1.While doing the Under voltage relay trip test increase the full voltage level and decrease slowly to get the correct results

2. While doing the Hand reset L/O relay pickup drop off test don't give the continuous voltage to the coil. Use MCB to on off. To get the pick up current put multimeter in "Fast max " range.
3.While test the CVT or VT connect the primary neutral with earth other vise result will be wrong.

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THIS IS SIVA T&C ENGINEER IN NCC LTD - SAUDI.