why we are giving D.C. supply to field of an alternator, why can't we give the a.C. supply

12 Answers   APTransco, Proman,

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What is the basis for framing the rules of block diagram reduction technique?

0 Answers  

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What is K-rated transformer? What is the use of it? What can be the size(pls provide calculation if possible) of K- factor transformer for 550kW,690V motor operating with drive (VFD)?

0 Answers  

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If a generator of generating station produces 100MW rated output then what will be the rating of the step-up transformer connected to it?

5 Answers  

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can we find the inductance of a induction motor?

0 Answers   Trident,

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What is the difference between Derived earth Fault and measured earth fault.How it works.

1 Answers  

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Pls mail me utility & Dg related question with answer

0 Answers  

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What is the necessary condition for stability.

0 Answers  

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Differentiate AC and Dc resistance

0 Answers  

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what is the tolerance for the magnetic balance test conducted on the distribution transformer?

0 Answers  

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The electromagnetic torque developed is proportional to what in a D.C series motor?

0 Answers   HPCL,

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what is reluctance?

11 Answers   TCS,

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