How to know the back up time for a 5KVA UPS which is connected to 15 nos. of computers? Is there any formula for this? pls. tell me.

1 Answers   HAL,

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What is meant by reverse polarity and how it can be fixed?

0 Answers  

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difference between load bus and dead bus?

4 Answers  

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can i use the six sigma method which is used in management area, in state estimation of power systems?

0 Answers  

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why do we have another cartridge filled with oil fitted at the bottom silica gel cartridge in power transforers

1 Answers  

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I want formula to calculate cable size as per load given in length & amp. I searched many sites but didn't right answer. Please reply me asap.

0 Answers  

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Why do you get a typical sound when the transformer is put into operation?

4 Answers   IIT,

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what is basic difference betmeen normal & flame proof motor??

0 Answers  

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How will change the frequency in distribution side?

0 Answers  

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what is EBXl (electron beam cross linked ) cable ?

1 Answers   Polycab,

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how to diffrentiate between ac & dc motors from a distance

5 Answers  

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HOW TO DRAW THE VECTOR DIAGRAMS OF A Dyn 11,YdN 1 transformers?

0 Answers  

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