How many types of lightings are there

2 Answers   ABB, Met Trade,

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WHY IS THE POWER FACTOR NOT MORE THAN UNITY.

6 Answers  

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Kindly Tell me name of the book for electrical estimation and costing ,calculation or web site to download

1 Answers   ABB,

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what is the VVVFD and?

4 Answers  

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how to calculate the mf of kwh meter,if ct the ratio on meter is 100/5A

2 Answers  

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what is function of INVERTER

4 Answers  

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what is the reason for indication of light in the earth lamps of main switchboard.if there is an earth why does one lamp get dim and the other two bright.

0 Answers  

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what is the difference between arc and spark

2 Answers   ABB, Jindal,

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can indirect loading be called as phantom loading?

0 Answers  

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Can anyone explain how the vector diagram of a transformer which doesn't have name plate be found whether it is Dy11/Dy5/Yd11 and so on?

4 Answers   TATA,

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What is class 2 coordination ?

2 Answers  

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what is Diversity factor in electrical installations

3 Answers  

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