phase colour is indicated by R Y B (red yellow blue) but in transformer i have seen U V W instead of (R Y B) have any meaning of this

3 Answers   Areva, Kim Yew,

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why a pilot exciter is used in combination with the main exciter? why not only a main exciter is used for excitation to an alternator?

1 Answers   Electrical,

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what is meaning of Power factor?????????

3 Answers  

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How is a 100 MVA transformer cooled?

9 Answers  

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what is function of centrifugal switch in single phase induction motor..?

3 Answers  

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HOW TO DRAW THE VECTOR DIAGRAMS OF A Dyn 11,YdN 1 transformers?

0 Answers  

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what's burden resistor, why it's used?

1 Answers   Bhel, TVS Group,

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on a three-winding transformer relationship delta-delta-star, on third winding why the relationship is a star? what are the advantages and disadvantages? Thank you and please help

0 Answers  

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what are cable earthing and bus earthing trucks?when and where they are used?

1 Answers  

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can we do the star delta connection of capacitor for 3- phase motor starter.

0 Answers  

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what is the advantages og idmt relay over magnetic relay??

0 Answers   Bhel,

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Why we use the D-curve MCBs in critical power distrubution.

4 Answers   Sodexo,

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