how does we calculate the capacity of battery

1 Answers   MTS,

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Why r used of cable 50sq.mm and above size cable in 3.5 core. And below size in 4 core ? any technical reason please explain it

2 Answers  

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Why star point of star connected motor is not grounded? Why alternator is operated at lagging power factor?

3 Answers   TCL,

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how to decide the ratings of the busbar in electrification.give me the proper thumb rule or procedure

1 Answers   ABB,

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I have a 5KVA UPS. Total load to be connected almost 3KW. Ordering a battery pack with capacity of 1920VAh. How long will the backup time be?

1 Answers  

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1.In two wattmeter method if one wattmeter shows Negative reading then wat is reason? 2.Wat is the reason for low voltage in houses? 3.Wat is meant by current and voltage? wat is difference between the two?

10 Answers   Engineering,

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Why are the cores of large transformers built up of circular transactions ?

0 Answers  

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At what load maximum effiecency will be obtained Distribution transformer and Genarating transformer Pls clarify?

4 Answers  

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What is Harmonics & what are its efect & which harmonic is dangerous

5 Answers   IBM,

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Whats the frequency used in Rodents Repllant System????? What is the Diff btw Infrasonic & Ultrasonic Frquencies???

1 Answers   Emerson,

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what are the components of a start and stop motor control?

2 Answers  

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gd eve frndz my qstn is how convert sound energy to electrical energy

1 Answers   HCL,

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