what is prniciple of three phase IM?

3 Answers  

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Can anyone explain how the vector diagram of a transformer which doesn't have name plate be found whether it is Dy11/Dy5/Yd11 and so on?

4 Answers   TATA,

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can i used 400A SFU (for the use of PA fan motor),if my BUSBAR rating is only 315A?????answer me quickly as possible.......thanks

1 Answers  

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state the disadvantages of carbon filament???

0 Answers  

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how to calculate the output power of vfd , please help me.

1 Answers  

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importance of air gap in transformer

5 Answers  

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I have 90KW Motor 60 Hz,380V Pf 0,88. after testing the Motor without Load is the no load Current 36 A,but wenn i put load after 2 hours the current increase more than 156 A. Can anybode tell me waht is the Problem?

4 Answers   ABB,

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how to match 0 -10V with 4 - 20mA

3 Answers  

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two bulbs of 100w and 40w respectively connected in paralel across a 230v supply.which bulb will glow bright and why?

4 Answers  

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Can 2 nos. of 1 ton split ac be used through a 20 am supply meter?

3 Answers  

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why the rating of transformer in k.v.a

4 Answers  

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why the the phase transformer's nuetral has been grounded

2 Answers  

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