Answer Posted / sanjay kumar

lighting transformer is a transformer witch is required for lighting load near to supply source end to limit the fault current due to very low impedance near the main source. it also reduce the high voltage spikes & EMI in the primary to transfer in the secondary.It also used where the primary supply is 3-phase & 3-wire to get neutral point in secondery.

What is the formulae of Megger value for a A.C.Motor

2811

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Explain how you decide what size of electrical wire do you need?

1063

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In india, according to trade theory above 5 HP motor reqired star delta starter. But we R connect 11 KV motor with 14MW in Direct to line ( With VCB starter combination) Can U Guess, How it is possible ?????

2075

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application s to shunt coil

1865

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why the electrolyte level in lead acid battery is maintained 2.5 cms above electrodes?

1808

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why motor range is available 22kv,30kv,37kv,45kv and so on? why motor range is not available 21kv,24,25,26,27kv and so on?

2743

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what is the diff. between x'mer , isolation x'mer & ultra-isolation x'mer ?????????????

2264

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What is ignition module of a CAT Gas Genset G-3508 Engine, Alternator SR4B Series. HOw its checked for correct functioning.Is it repiarable or replacable?

2122

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how to select battery for 15 KVA UPS with formula

2495

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What is a dominant pole?

1105

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What is center gravity load in substation?

2355

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is it possible to say motor horsepower number without seeing name plate(when name plate damaged)

2021

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how to calculate regulation constants for over head lines? and what are the regulation constant for raccoon conductor at different voltage level and different P.F?

1914

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How to calculate the fuel consumption for 600kva DG genset which connecting with 25%load?

2072

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How many double suspension hardware fittings are required on a double circuit transmission tower?

2035

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