Answer / k.senthil kumar

HAi Mr Ankush Miglani i have doubt about transformer kept
Star-Star (Y-Y)(YNynO vector group) conections how we can
earth the primary side .

Answer / prashant

no one is correct
even also i don't know the answer.

Answer / balu

If you take the case of Y/Delta step down t/f , it don't have neutral thats why no earthing req.

please, Send me last technical test question paper in my email id..

0 Answers  

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I am working in 600MW power plant currently in erection phase. I came along this term and want to know its meaning in simple language, consider me naive!?? All motors shall be of energy efficient type EFF-2 as per IS:12615/ equivalent IEC / International Standard.

1 Answers   Punj Lloyd Ltd,

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How to find the maximum load, that can be supplied by a transformer.....

2 Answers   ME,

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why dc source used for HV breakers and Relays operation?

2 Answers   Cethar,

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two transformers of the same type, using the same grade of iron and conducting material, are designed to work at same flux and current densities, but the linear dimension of one are two times of the other in all respects. The ration of kVA of the two transformer closely equal to................? options: 16, 8, 4, 2

2 Answers   Vizag Steel,

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what is mean by dry frequency

0 Answers   Siemens, TCS,

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Does human body can effect the electric shock when stand on Insulated material?

2 Answers  

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What is difference between 220v/50Hz & 120V/60Hz?

8 Answers  

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what is relation of rpm with Power supply? rpm directly Proposational to power ?

2 Answers  

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1.wat is the negative slip region in the motor?

1 Answers  

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How to calculate rated currennt Of Mcb for 2hp motor...

3 Answers  

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what is the relation between currebt & voltage.

8 Answers  

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