Define over current & earth fault ?how its functioning ?
Means of protection from overcurrents
setting current & setting time
idmt
Means of protection from phase-to-ground connection
setting current
&
And in the least possible time trip
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What are the advantage of free wheeling diode in a full wave rectifier?
An 11kv system consisting of an underground cable to a sub station about 300 meters away was shut down for about 10 hrs. On energising, it tripped off on earth fault about 10---20 mins later 6 times but since than it is not tripping.its already 3 weeks now. The SPAJ was found to be fine. what could be the cause.No test had been done to determine the cause of the trippings till now because of demand.
How damper winding in synchronous motor suppress Hunting?
Difference between SHORT CIRCUIT and an OVERLOAD ?
What is meant by H.R.C fuse?
40 Answers Gas Projects, GSCE, Taj Group,
why we are using DC supply in megger?
What is the difference between ACB & MCCB?
before transformer oil dielectric strenght tests are taken the oil should be allowed to settle to remove option 1 air bubbles 2 gasses 3 contamination 4 water
why do fans generally rotate in anti clock wise direction??
Explain the process of commutation in a dc machine.
hi,every one, i have to write the search paper on "performance policy optimization" of NGN (next generation networks). i need the material on this topic. can any body help me. please tell me any useful site where the good material is available and name of any reference book. it should be a great help for me.
Pls explan the OLR setting in VCB at HT yard