HOW WE CHOOSE EARTH'S POTENTIAL AS ZERO V?

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why there is a humming noise in transformer

6 Answers  

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Why the cores of large transformers build up of circular cross section?

0 Answers  

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we can run 2phase as 3phase .what will be the differnce with respect to phase angle, power, current between the two modes

0 Answers  

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what happens if generator is running leading power facotor?

9 Answers   century,

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What is the difference between surge arrestor and surge capacitor?

2 Answers   Shreem Electric Ltd,

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is it possible to export & import power in a same transformer.how

2 Answers  

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I want to know in body earthing which material can be use either copper plate or GI plate please guide us which is best option.

3 Answers  

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plz tell me Motor IP formula

0 Answers  

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which type of cabel

0 Answers   DMRC,

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How Can I calculate for the photometrics requirements for a street lighting? Data given are: 45 units of 6 meter light pole with 150 watts metal halide lamp, 220 volts and installed in a promenade area.

0 Answers  

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how do we calculate cable sq mm size,that if 50 A load

2 Answers   GTL, PowerTech,

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