For a 6.6kV Motor it is recommended to do megger test with 500 V d.c and not more than 5kV d.c but the Hi voltage withstand test should be performed by 12kV AC. Why the dc voltage test should be limited but AC voltage withstand test could be with such a high voltage?

0 Answers   Hormozgan Steel,

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The shot circuit in any winding of transformer result? Explain

0 Answers  

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while conducting an experiment why we connect the armature rheostat in maximum position and field rheostat in minimum position

1 Answers  

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What is mean by diversity Fator?

7 Answers  

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1 ton AC takes how much current( starting & stable)

15 Answers  

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Why use only DC supply to charge batteries why not AC Supply??

3 Answers   APC, Emerson,

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What is the one main difference between ups & inverter ? And electrical engineering & electronics engineering ?

0 Answers  

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Why carbon brushes are used in motors?

6 Answers   BARC,

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what is the material use in bus bar & why.

3 Answers  

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What is the formula to calculate the KVAR value of a capacitor, while value of capcitor in farads is known.

1 Answers  

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What is the maximum No. of out going mccbs permitted from an LV distribution paqnel? What is the ampere relation between incomer and out going switch gears/mccbs?

0 Answers  

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Application Comparison between 22KV (UE)and 33KV (E) system. Are we allowed to use 33KV (E) cable in lieu of 22KV (UE) cable. What are the technical disadvantages.

0 Answers  

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