How many battery required for an 3kva online ups with 3 hrs back up with usage of 3 fans,3tube lights

1 Answers  

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any body can give me idea or sketch of fuel(Diesel) level controller for genset.

1 Answers  

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HOW MUCH CURRENT CAN A 3 -1/2 CORE 100 MM WIRE CARRY

2 Answers   Focus Energy, San,

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True or false question. 1.The fuse provide phase and neutral 2.power loss in electrical circuit can take place in (resistance or inductance or capacitance). 3.two phase system each phase has separated by a phase difference of (90 or 180 or 270 or 45). 4.3 phase balanced star connected load neutral current shall be (line current or phase current or zero or unity)

0 Answers  

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how to calculate lux level in out door (yard lighting) please expalin with a example

1 Answers   IVRCL,

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How to check phase R,Y,B

3 Answers  

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what the different between earthing and grounding?

4 Answers  

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When we give supply to a transformer 11 kv and we get 415v from it, so when we give supply to same transformer 415v on ht side what we get? and When we gives supply to any transformer to L.T. side 415v or 220v What supply is on H.T. side?

2 Answers   Ashoka Electricals,

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what is the difference between Power and Distribution transformers ?

0 Answers  

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i need the details about bhel exam.how to apply for that.please send to my email-id.thenmozhi2k7@gmail.com

0 Answers  

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Why don't we use ground free electricity to avoid electric shock.As birds are do not get shock.

3 Answers  

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Which are Electrical componet and Electronics componet??

2 Answers   KarMic,

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