why the transformer primary and secondary windins vector groups vary? why it is something like Dy11 and not as Dy or Yy...

2 Answers  

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what is hystersis loss?

3 Answers  

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Pls mail me utility & Dg related question with answer

0 Answers  

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What is sequence network? Discuss all three types of sequence network.

1 Answers  

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what is the basic difference between capacitor and condenser ?

17 Answers   ABB, Essar,

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Why is it not possible to operate a star-delta transformer in parallel with delta-delta transformer?

1 Answers  

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what is ferranti effect?

9 Answers  

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What are the advantages and disadvantages of oil filled transformers?

2 Answers   Mercantile Marine Department, Studio College,

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all electricals questions

2 Answers  

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Why 60Hz frequency is used in America what are all the benifits?

5 Answers  

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When neutral is grounded in electrical circuit?

9 Answers   Balco,

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What will happen if i connect two 3-phase tranformers secondary supply on one bus bar that is R-Y-B-N?

2 Answers   GMR,

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