Why 50hz and 60hz frequencies are used by the world, why they are not taking 55hz?

3 Answers  

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What is called grain-oriented laminations?

0 Answers  

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What are your future plans for the company if permanently employed?

0 Answers  

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Is it possible to import & export power through the same power transformer? what will be the vector group normally for both different or same?

1 Answers  

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How can be decreased the size of transformer?

6 Answers  

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what is Insulation monitoring device. where it is used? (in switchgear room or control panel or in field equipment)

0 Answers  

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why we have to particulary use ACB for below ratings,even available of MCB,MCCB with that range ?

0 Answers   Siemens,

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If you know per phase current and phase to phase voltage; what is overall KW of the circuit?

1 Answers   ABC, GAS,

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whatdo mean by chopper fed drives.used for ac drives.

0 Answers  

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why we provided electrical earthing?

5 Answers   CPCL,

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How much area is covered by a single lightning arrestor to protect object from lightning strokes ?

1 Answers  

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what's the difference between induction generator and synchronous generator?

1 Answers   IBM,

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