Why earthing is necessary for any equipment?

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What are the difference between off-load tap changer and on-load tap changer in transformer?

2 Answers   HCL,

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specify the inbuilt protections in DG

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how we will deside the high voltage value

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What are the two basic types of transformers?

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A 3 phase motor operating off 415V system is developing 20Kw at an efficiency of 0.77 and power factor of 0.73. determine:- a)the line current. b)the phase current if winding are delta connected. c)the phase voltage if winding are star connected.

1 Answers  

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what's producer of XLPE cable laying in undergroung

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1 sq mm conductor=? how many amps

3 Answers  

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what is meant by transformer?

11 Answers  

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Which do you think is the most significant cause of energy loss in a factory?

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what happens when current(ac or dc)flowing through a boucket of water?please describe it.

3 Answers  

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what should be 3phase motor capacity or rating to connect in star connection. what should be 3phase motor capacity or rating to connect in delta connection. what should be 3phase motor capacity or rating to connect in star delta connection

1 Answers  

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