How to calculate no of Lighning arrestors are required for protecting 50mX 50m*20m cubical building and locations of LA?

0 Answers   HAL,

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What is the technical name of minute currents that i have been produced in moving electrical objects?

2 Answers   ITC Infotech,

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what are the needs of electrical earthing.... other than protection?

5 Answers   Eskom,

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WHY WE DO NOT TAKE THE POWER FACTOR MORE NEARER TO UNITY IN AC GENERATOR?

1 Answers  

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how to select earthing conductor size of amy motor/panel etc.

1 Answers   Sony, VBB,

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current transformer cannot measure voltage or not ? then y we use P.T ?

1 Answers   Bhel,

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what is field flash

4 Answers   Bhel,

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How to calculate flow of water delivered by pump when pressure & size of pipe line is given

0 Answers   Knight Frank,

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WHY WE CAN GENERATE POWER IN 3PHASE MODE ONLY NOT IN 4 OR 5PHASE

18 Answers  

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What is battery Limit ?

4 Answers   NDDB,

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What is the difference between earthed & unearthed system?

2 Answers   HCL,

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how to design step down 12 V, 1mA small transformer from 220 V AC? Because according to VI relation and power transfer it results bulky...

0 Answers  

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