Answer Posted / rakesh gupta

when transformer is running with no load.then current flow
in transformer is very high than rated current of
transformer. this current is know as magnetising inrush
current. it is contain different types harmonics i.e dc
component (30% to 40% ) ,secondary harmonic (30% to
70% ),third harmonic
(10% to 30%).

there are cam operated switches - why we call cam operated , What is cam ?

1856

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Hello to all, Please someone can send me HPCL ELECTRICAL Engg. Sample papers to me? Its urjent....my email address is.... raviasiapacific@gmail.com

2080

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i want to put single phase load on scott connected transformer,eventhough how to balance the transformer.

1779

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The size and construction of bushings in a transformer depend upon?

1694

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Why GRR starts from 60% of motor speed why not less than 60%?

1628

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Why the standard of ambient teperature mentioned as 40 degree celcius in machines.

1887

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What is Anemometer used to measure?

1073

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3 phase induction motor connection star or delta while using ac drive motor is .75 to 5.5 kw

1911

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can i connect REF and Differencial relay in 1 CT core for transformer protection?

1864

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tan delta equation test on alternators

2156

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For small size, high frequency coils, the most common core material is- a. )Air b. )Ferrite c.) Powdered ion d.) Steel

2925

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What is pi controller?

1130

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explain different types of d.c motors?

1089

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how will we calculate the copper wire load..

1881

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distribution transformer de-rating formula on over limit iron losses  

2237

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