why for transformer protection we protect tranformer from 3rd hormonics and 5th hormonics and what is the reason of generating these horminics in electrical system?

2 Answers   Essar, LG, OPS,

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What is value of earth resistance required for substation and equipment earthing and what are the reference guidelines

0 Answers   Glenmark,

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ouestion for the post of section engineer

1 Answers   BSNL, RRB,

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can anyone give an idea about dia calculation in cold rolling mill

0 Answers  

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How Calculat the Cable Sizing of HT/LT System & Explian by one Exampal?

1 Answers   Siemens,

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as we see that in our country the power rating for transmission is always rated in multiple of 11 like 11kv,33kv,66kv132kv. So i want to know wht is reason or logic here.

2 Answers  

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Is the theorem applicable to ac sources?

0 Answers  

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I am going to appear for the RRB Chennai Section Engineer online exam. Please send me the question papers from 2001 to date to my mail id: vsujith_rajan@yahoo.co.in

3 Answers   RRB,

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WHY EXCITATION OF SYNCHRONOUS MACHINE IS DC NOT AC

8 Answers   NTPC,

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Grid fault level [KA]?

0 Answers  

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What is electrical charger?

3 Answers   HCL,

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What are series and parallel isolators?

3 Answers  

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