why are we using resistor in NGR ?

1 Answers  

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what is the difference between current rating and breaking current of an MCCB? and for a known load how to calculate the current rating of a MCCB?

1 Answers   HPL,

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wht is the purpose of the earth electrode other then earthing

1 Answers  

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star delta starter single line digram

1 Answers  

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i work as a technician at a private company.. i used to take amp reading for certain appliances such as air con.. the problem is when i clamp the neutral, wire there is a current reading.. from my understanding for single phase system neutral should not have current unless if the circuit is not complete.. yet the air con still work

3 Answers  

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what is meant by mimic diagram ?where it is used ?plz explain briefly

2 Answers  

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what is mean by D.O. in distribution line poles?

0 Answers  

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Can the efficiency of transformer be measured with the help of wattmeter readings taken at primary and secondary side? Support the answer.

2 Answers  

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what is the mho relay

3 Answers  

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what is relay

15 Answers   HPCL, IOCL,

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If we impress a dc voltage of 230 V on an unloaded 230 V, 50 Hz transformer it wi A give high secondary voltage B burn out C give secondary voltage as per K D none of these

1 Answers  

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Why do we use only Sinusoidal Wave in AC supply why not the Square,Triangle or Sawtooth etc?

2 Answers  

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