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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The D.C. spark test is applicable to single conductor cable & assemblies of insulated single conductor cables without insulation shield,metallic sheath or metalic armor?

0 Answers  

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what is the cause of voltage dipp or swell in the transmission lines?

0 Answers  

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In Star type and Delta type Motors, If one phase will miss/Break then which phase winding will burn and why?

4 Answers  

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what is resistance?

5 Answers  

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if 2500 KVA TRANSFORMER CAPACITY.33KV INCOMING HOW ARE AMPEAR PRIMERY SAID

3 Answers   Cipla,

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why we are using KVA rating for transformer,not KWh rating?

5 Answers   NTS,

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How the electric train gets the supply of electricity? What is the return path of the current?

7 Answers   NTPC,

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How do u analyse protection fault when vcb tripping on load

0 Answers  

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What is the difference between the impedance percent and impedance voltage ?

0 Answers  

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why in generating station generation voltage is 11 kv

1 Answers   L&T, Usha Martin,

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What is the basic rule for block diagram reduction technique?

0 Answers  

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