what is the working principle of DC generator ?

10 Answers   DRDL, HCL,

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what is main reason for grid earthing for any industry

4 Answers  

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How to calculate the value of capacitance of a capacitor used in power factor improvement plant if we know KVAR and voltages?

1 Answers  

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In India the supply voltage is 230 volt A.C. During the negative half cycle phase becomes neutral and neutral become phase? or what will happen during negative half cycle? how the electrons flow during positive and negative half cycle?

0 Answers   ITI,

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What is the distance b/w R&Y phase in 33kv T.line,11kv &440v

1 Answers   NTPC,

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What are the different protection systems takes place on control panel board?

7 Answers   BSNL,

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single phase power supply give to separate one steel coup with water, what reaction create

0 Answers   Turbo,

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If you don’t have coal, salt and copper, then how would you earth your connection temporarily at a campus site?

2 Answers  

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What is the Power factor of DC Power system ?

9 Answers  

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what will happen if delta - star , 400V to 6.6KV step up transformer neutral is not grounded, Neutral is not used but transformer is provided with neutral.

2 Answers  

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what is the meaning of electrical maintenance?

3 Answers   GE Healthcare, MAHINDRA,

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why nearly all the voltage levels are in the multiples of 11 like 3.3 ,6.6 ,33 ,11 kv.....

8 Answers   Suzlon,

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