why we are testing cables with DC supply not with AC supply?

9 Answers   Aurobindo, DEWA, L&T,

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why rating of transformer is in kva instead of kw?

3 Answers  

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Describe the colour rendering properties of i) tungsten filament lamps ii) tubular fluorescent lamp

0 Answers  

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How is a capacitor bank is designed ?

2 Answers   Asian Paints,

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in 132 kv transformer , in which range of transformer oil bdv required ? if it has around 50-55 , then how it was insulated the winding ?

3 Answers   Voltamp,

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what is the maximum load sutiable from earth to phase and what is the max voltage earth to phase suitable

1 Answers  

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in case of three phase induction motor,when it is connected to three phase supply,why the magnetic field is rotets around the armeture?

5 Answers   Hindalco,

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difference b/w bus bar and tie line?if possible explain with eg:

2 Answers  

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what is the diff between earth leakage relay and earth fault relay?

7 Answers  

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what material is the electrical housing wire made of? is there any difference for the telephone lines?

0 Answers  

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What is the maximum number of swithes that can be connected in series up to down stream point in an LV Distribution system?

0 Answers  

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why is a avtomatic voltage regulator used for?

5 Answers  

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