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   S V Sugar,

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what kind of technical test that i need to learn because i have an interview tomorrow.. please someone help me..

0 Answers   Sony,

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Dear All, Pls let me know about ELR.... CBCT is using for singnal purpose... How it works.. any body can explain pls.......

4 Answers  

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what is first pole to clear factor ?

3 Answers  

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What is GIS (Gas Insulated Switchgear)

3 Answers   Power Grid,

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my motor rating is 800HP, 128Amps, 3.3kV. What is capaitor bank i can use for PF improvement to 0.990?

3 Answers  

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what is the difference between brush & brushless dc motor explain its operation ?

1 Answers  

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what is the iron loss in a 11KV/440V transformer?

2 Answers   Bhel, TVS,

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how to calculate the Neutral transformer impedance?

0 Answers   Schneider,

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WHAT IS MEANT BY BTU OF AIR CONDITIONERS.

2 Answers  

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why transformer has more efficiency compare to rotating machine?

3 Answers  

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what is the difference between synchronization and paralleling?

13 Answers   BARC,

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