Answer / maruth sk

Earth fault,
Short circuit,
Over current,
Over voltage

How to calculate Battery back up time for a 400 AH Battery bank having a load of 20 Amps and charging time required to fully charge this battery bank?

2 Answers  

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What is transmittance?

0 Answers  

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What is the power factor of an alternator at no load?

0 Answers  

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if 20 hp motor starts directly stars and contenious run . what will be the effect.

11 Answers   HP, Ohsung Electronics,

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Brief working principle of fluorcent tubelight,function of starter & choke.

3 Answers   Havells,

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1.what is bus cuplour and main funtions. 2.what is main function of alternator. 3.how many types of dg oils.

11 Answers   Bhel,

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why ELCB can't work if N input of ELCB do not connect to ground?

5 Answers  

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v=I*R, i.e V is directly proportional to I. now P=V*I. so V=P/I. thus v is inversely proportional to I. so what is the correct one? If both are correct than for which kind of condition this 2 differ

3 Answers  

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how to calculate knee point voltage of current transformer?

20 Answers   Bhel, Bhilai, Jackson,

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what is the difference between Earthing,Grounding and neutral?

3 Answers   Biocon, Tata Steel Limited,

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the single phase voltage is 230 volts and threee phase is 430 v.why three phase is not 660 v?

2 Answers  

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howmany types of compresor is there? and how to calculate compresor capacity?

3 Answers  

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