Answer / gs rajan

I thinking MCCB 200Amp, Rccb 40 Amp.

You are given 220 V supply source, four wires, an ammeter and voltmeter. There is no any indication or description on meters. How will you identify which is ammeter or voltmeter?

7 Answers   ABB,

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why are we using multiples of 11 in substation.

2 Answers  

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Why not instal the NGR in 11kv/433kv trasformer?

3 Answers  

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What will be the resultant out put voltage when two different voltage rating batteries are vconnected in parallel? pls. answer with example if available.

1 Answers  

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What is the d/f between DOL & star delta starter & automatic star delta starter?

23 Answers   ACC, Dalkia, Engineering, Indeco, NINL, Novotel, RMH Control Systems, Wipro,

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why transformer are rated in KVA not in watt?

7 Answers   DMRC, L&T, TCS,

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How much the fault level of 11 k.v.,22 k.v., 33 k.v. (in Maharashtra- M.S.E.D.C.L) for calculation of short circuit current & selection of h.t.cable.

1 Answers  

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what is the d/f b/w iverter & converter.

5 Answers   Indeco,

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what you mean by frequency of an igbt& how to find it?

1 Answers  

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what is defference by mcb,mccb and mpcb

4 Answers   Bhel,

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How to calculate energy stored in an inductance?

0 Answers  

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Why is transformer a machine

1 Answers   Grasim,

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