why need of ac exietation in alternater.

2 Answers  

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It is advisable 2 use auto-transformer if transformation ratio is-a)110KV/11KV,b)230kv/110kv,c)110kv/66kv,d) 400kv/230kv

2 Answers  

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what is cogging? how it can be controlled?

1 Answers   HCL,

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difference b/w bus bar and tie line?if possible explain with eg:

2 Answers  

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What is the function of a capaitor in 1-phase IM?

1 Answers  

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How to calculate 5hp 415v 3phase 2800rpm Ac motor full load current with out tourgh

1 Answers   Siemens, Spatel,

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What will happen to the protection and metering, if the polarity of a single or two PT/PTs in three phase system is reversed? Please provide reference if any.

0 Answers   Mind Tree,

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how the grounding[earting] is achieved on ships.

1 Answers  

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what is VFD and how to save the power by using VFD?

7 Answers  

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why distribution transformer are of DY11 type?

4 Answers  

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what is frequency response?

0 Answers  

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why is used for starters for staring motors?

6 Answers   Amrapali, L&T,

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