Answer Posted / anil chopra

we use four earthing for this purpose . two for
alternator's star point earthing and using as neutarl.

and two for body earthing .

what is meant by IGBT how they differ from tyristor ?

2426

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draw the full wave and half wave circuit of 3 phase system and inverter circuit used in ups 

2379

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How Can You Relate Power Engineering With Electrical Engineering?

1218

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what are the steps involved in generator load test?

1537

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i have faced a problem in ro plant grunfos make bm30type pump it is 22kw pump. We start this pump using siemens 3rw 4423-ibc44, 30kw softstarter but this soft starter will frequently failier so we planed to change dol starter. So pls tell anybudy its possible or not.

1914

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why the perameters of secondary circuit are more important then that of the primary circuit of induction motor?

1891

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why the making current is more than then the breaking current and if its true then its about a controling circuit or breaker power contact points

2055

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What is pi controller?

1164

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what is interpose? where it is used and why it is used?

1041

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What is d main advantage of using double circuit 3 phase transmission ?

1922

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what are the interview question asked in wind mill about electrical

2352

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can i use ups power as a raw power for another ups

1962

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How to do fabrication , busbar and wiring cost for : 1. LT Panels 2. C& R Panel

1899

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I am designing new project sub station with 220 kV / 11 kV, 40 MVA capacity. This project have many recifier sets, which can generate 3rd harmonics. Now I have to select vector group of This transformer. To minimise 3rd harmonics, what care should I take in selection of Transformer Vecrtor group? If it is Y-Y with open Delta tertiary then what should be the rating & voltage of Tertiary Winding?

1860

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Write the analogous electrical elements in force current analogy for the elements of mechanical translational system.

1241

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