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What is the armature mmf in a D.C machine?
what is V.L.F. testing of power cable? do you know the voltage ratings, like for what rating and size of cable what rating of V.L.F. testing is used?
how single phase preventer works ?
why high speed tripping relay is used in protection circuit why not normal relay
What is the permissable nutral current of three phase system as per IS standards?
What type of wiring series or parallel is used for conventional and addressable type FAS & why?
What is a advantage of Self Reset Lockout ? On Fault breaker get trip & fault no longer exist then self reset lockout how inform us?
what purpose to use excaiter in DG.?
I AM FROM ELECTRICAL ENGINEERING ? I AM ASPIRING FOR "BHEL".HOW I HAVE TO PREPARE .ON WHICH TOPICS TO BE CONCENTRATE MORE.PLEASE GIVE FULL DETAILS OF WRITTEN EXAM.
if we install two earth pits with a clear space of 5m without any interconnection,by checking the digital multimeter will it show continuity between earth pits? If so what would be the approx. value
What is the rating of circuit breaker needed for 300 KVA load in 33 KV supply line in a transformer of 33 KV / 415 Volt ?
What is the emf equation of a transformer?
what is the effect of power factor of machines in starting current
Will an earth leakage trip be activated if the component or wiring is faulty on low voltage equipment.Example An electrical Cat Scarer placed in the garden and water gets into the wiring.
WHY THREE PHESE SYSTEM VOLTAGE APPLIED IN 440 VOLT