Answer / j.nanda kumar

Battery specific gravity is measured with HYDROMETER.The
range of the Battery is 1150 to 1250.Fully charged
hydrometer when immersed in a battery shows 1250.

what happen to the voltage and current in all phases when an earth fault occur in a phase in three phase three wire system(delta connected)...

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sir i am apearing for nic exam.i dont know exam pattern.can you please send me some model papers

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why we use crushed stone in switch yard?

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