what is the function of commutator in dc motor?

3 Answers  

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Why short ckt does not happen when solenoid coil connected to supply. as its a wire only.

1 Answers   Siemens,

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Main Differance between Primary Distribution & Secondary Distribution Of Electricity....?

1 Answers  

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How to check the cable fault / hv test of transformer cable.

0 Answers   KSEB, L&T, Siemens,

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DIFFERNCE BETWEEN DCS AND PLC? HOW IT WORKS?

0 Answers   Essar,

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what is the diffrence between resistive load and capoasitive load.?

4 Answers  

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In power point wiring,often,we use less size of earth wire compared to phase & neutral wire and we use big size pin in pug top. how is it justified? can we use small size cable for earthing?

3 Answers   HAL,

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How Grading Rings & spacers in transmission lines works?working principle?

1 Answers  

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how can maintain the power factor and why and this is how do work tell us

0 Answers   Wipro,

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what is hunting?

2 Answers  

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sir i am apearing for nic exam.i dont know exam pattern.can you please send me some model papers

0 Answers  

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last week we did the REF relay test by closing single pole (R phase) of CB and apply 380V at the primary of delta transformer. we get 33A at the primary of the R phase star end. but we get 380A at both R an B in delta side. how and why?

1 Answers   Siemens,

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