What is d diff. btw Online & Offline UPS???

4 Answers   Emerson,

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If Earthing is poor in a DB of of Residential Building, will residents feel a leakage voltage in a Electrical Ssytem? is this statement true?

1 Answers   Dolphin International,

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Can anybody tell me how to calculate(formula) earth flat size(for copper and aluminium).

3 Answers  

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What do you mean by phasors?

0 Answers  

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Calculate the demand in KVA for a three phase 440V power source drawing 1100A current

5 Answers  

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if we install two earth pits with a clear space of 5m without any interconnection,by checking the digital multimeter will it show continuity between earth pits? If so what would be the approx. value

0 Answers  

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1. What are the tests to be carried out for CBCT? 2. can measure the secondary resistances? 3. with respect to secondary maximum how much voltage can be applied for IR test.

0 Answers  

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what types battery chargers are there?wanted with details.

3 Answers   SCS,

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what is deffrent alternatid and gernater

2 Answers  

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WHAT IS B & C CLASS SURGE PROTECTION AND WHAT IS DIFFERENCE BETWEEN B & c CLASS SP

2 Answers   Bharti,

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why is power supplied in 3 phase only? why not in 2 or 4 phases?

11 Answers  

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why asa method ZPF method is more accurate than ASA method?

0 Answers  

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