Answer Posted / gopi paranth

The Copper Loss of a transformer depends on current and iron loss depends on voltage.Hence total losses depends on "Volt ampere" (VA)only and it is independent of load powerfactor.That is Why the rating of transformer is given in KVA and not in KW

what is the VA(Volt-amphere)? define with calculation?

1285

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Explain with example of functional requirements of protection relay in terms reliability, selectivity, sensitivity

1887

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can we use engine degreaser for electrical motors?

1764

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what is the difference between delta delta and star delta connection transformer? why we use delta delta transformer since it need earthing transformer for grounding?

2091

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How the over load setting for HT Motors calculated-provided in Numerical Relay

1816

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In PFI plant one stage capacitor connection is directly connected(with out megnetic contact controll). but why?

2296

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what is the major difference between LIBBP & HIBBP.. which one is most preferable..

2994

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When a square wave is applied to primary of a transformer then what will be output wave form of secondary ?

2079

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If a air condition consume 2.50 to 3.00 amp then how much it will consume in watts if it is running 10 hours out of 24 hours????

1867

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What are the advantages of skewing of cage rotor conductors?

1229

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explain single phase series motor

1948

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May I know how much values to be set for earth fault, over current and short circuit values at 11kv side? I have 11kv van 1250amps rating. Present it's taking load 80amps?

1497

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wow to calculate the transformer rating(KVA)

2271

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defult setting in p220 micom motor proction relay for 11kv,640kw,f.l.a.-40a,1440rpm ht motor?

3705

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I want to design a heating coil of 80/20 nicrome for 3.5KW please give me the calculations choosing for physical dimensions assume coil voltage will be 110V AC assume necessary conditions

1611

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