What is the Operating Powerfactor of UPS??? Why??

3 Answers  

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What is the Difference Between resistance and resistivity?

2 Answers   Sun Pharma,

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What exactly is meant by harmonics and harmonic current?? and what is skewing with regard to this??

2 Answers  

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how the calculation is done if the DG set require for the -- -48 to -51v 4000 ah battery set .

1 Answers   BSNL,

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How many straight through joint is permissible in single core 33kv XLPE cable for a length of 985 mtr.

3 Answers   DMRC,

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WHAT IS SYNCHRONISING?

8 Answers   L&T,

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why we cannot protect 100% winding of an alternator by using differential protection?

0 Answers  

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How to calculate & connection of 900KVA generator 2 sets & load(1500A)? How to choose cable size and ACB size for this load & generator? please explain me detail. Regards, Mr.Han

3 Answers   Powermec, TATA,

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i need circuit star delta connection?

1 Answers   L&T,

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work of choke in florocent tube circuit ?

0 Answers   Bhel,

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CFL lamp is what type of load?

6 Answers  

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what is principle operation of transformer?

9 Answers  

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