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.

draw singleline diagram of star to delta and dol starters

0 Answers   JCP,

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when a machine act as genartor and as motor?

2 Answers  

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How calculate cable size & voltage drop for the following requirement connected load 150 KW distance cable length 1000 M voltage 3 phase 415 v.

1 Answers  

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what is the full form of MEMO? name of memo train.

6 Answers   BirlaSoft,

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please tell 1 ton equal to how many kilo watt?? in some converter software's that is 3.5 kw. is it right?

8 Answers   Mitsubishi,

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what is the difference between inrush curent and jurk load.

2 Answers  

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HOW TO IDENTIFY THE RELAYS WHICH APPLICATION IN WHICH RELAY USING

3 Answers  

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Why transformer, generator, ups rating kva?

2 Answers  

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What will happen if supply to three phase motor is given wiyhout inerting rotor in it?How much current it will draw?

5 Answers  

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what diferent amoung three phase supply?

1 Answers  

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why substation ratings are multiple of 11 means 11\33 kv substation

6 Answers  

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whats was the problem if neutral and earth got 2volt from the ups output

1 Answers  

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