What happens when ac supply is given as excitation voltage instead of dc supply

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How Grading Rings & spacers in transmission lines works?working principle?

1 Answers  

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why US countries maintains 110v and 60HZ

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What is the most essential condition for the voltage build up for a d.c. Shunt generator?

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Can we use generator transformer as step down transformer? How?

3 Answers  

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from generating station If 400v LT line length is 1000m how much voltage is drop and how do i calculate it? which cable will be use for this line?

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I have a 3 phase 600 volt prim. feed and a 120/208 sec. Isolateing tranformer .We are using this system for safety against shock . What is the proper grounding ?? Does the common on sec. get earth ground ???

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1))why we run three phase or three different circuit from a single conduit 2)) why not two circuit of different phase run in same conduit?? and why we run same three cicuit of same phae run in single conduit??

0 Answers   ACC,

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5. What is PMG in Alternators?

11 Answers   L&T,

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Differentiate between ideal and non-ideal voltage sources?

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1.why are not using acb 33kv ht side? is there any problem 2.what is difference between acb,vcb,sf6 breackers? 3.what is the function of invertor and convertor in ups?

0 Answers   L&T,

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What is a feedback in control system?

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