How to calculate amount of copper used in a motor (AC&DC), generator and transformer? Datasheet provides power rating and mass of the equipment....can we somehow use this available info.

1 Answers  

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why rotor current reading is taken & why not stator?

4 Answers  

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HOW TO TEST A LIGHTENING ARREST ER ?

0 Answers   Bhushan Power Steel,

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Why use prefer Dc drive in place of Ac drive for kiln Operatio in Cement Plant?

4 Answers   Orient,

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why do we prefer a 3-phase delta connected load rather than star connected?

4 Answers  

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Whats difference between a single phase & a three phase motor?

4 Answers  

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A ii kv 1200 A Breaker combination fixed in a cubicle. How many ampere Fuse is required? If fuse is not using, Why?

0 Answers  

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WHAT IS A BASIC DIFFERENCE BETWEEN THYRISTOR,TRIAC AND A DIAC.AND WHAT R THERE APPLICATIONS?

5 Answers   Petronas, TCS,

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Hi, i want to know is meant by power quality? How it can calculated ? How we can improve?

1 Answers  

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what is ballast

1 Answers  

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There are two nos of 33Kv/11Kv 5MVA transformers conecting through HT cable from substation having metering at substation itself.One transformer used at a time another remains stand by.Further 11 nos of 11Kv/440V transformers are attached on it and each transformer is having its own Power factor correction panel.Now one 33/11Kv transformer at no load condition/Stand by condition is having power factor in leading side upto 0.21 and while when another tranformer at same situation have power factor in lagging 0.42. Now one thing is clear that transformer one is having 1.5 Km long 33kv cable due to that PF goes in leading side and another is having only 250 mtr length remains him lagging. Now i want to know that how i can maintain the Power factor at no load/ stand by position though both are behaving in seperate manner.

1 Answers  

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The safest value of current which can pass from human body?

4 Answers   Jindal,

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