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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pleasee tell me the risks and hazards of a Cable Jointer job? Thank you.

1 Answers  

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why do we prefer alternating current in india where as in USA prefers DC?

3 Answers   Bhel, GMR, Texmo,

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why the transformer is not operates on two phase?

1 Answers   APGenco, Atkins, FFBL,

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Why 11KV PT Secondaries [(11000/1.732)/(110/1.732)/ (110 / 3)]are in star connection ? And why the same should not be in delta ?

1 Answers  

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what is L.T?specify the range?

7 Answers  

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What are the various methods for effecive earthing in a factory in a rocky terrain, where soil resistivity is extraordinarily high? The usual method of 3 m deep earth pits is not serving the purpose.

4 Answers  

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why we use RYB phase sequence? and somewhere we use UVW ? why?

6 Answers   CSPDCL-Chhattisgarh State Power Distribution Company Limited, MUET, TCS,

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What should be ideal IR value for 11kV, un earthed, 1 MW motor?

3 Answers   Sail,

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What voltage is used in Directional earth fault relay? and why?

5 Answers   L&T,

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how can we chacke adiod in a circuit

2 Answers  

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power is the product of voltage and current.so we can measure the value of power just by using ammeter and voltmeter.......then why do we use a wattmeter?

5 Answers  

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