what is the difference between earthed system and unearthed system.. where do we use unearthed system because in electrical catalogues always cable for earthed and unearthed system is given..pls elaborate

3 Answers  

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what are the shades for mimic diagram i.e for 3.3kv,6.6kv,11kv,22kv and 33kv? which is the IS for mimic diagram?

2 Answers  

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what is power

6 Answers   ABB,

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How the CT and PT ratings are calculated

5 Answers  

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Is a DC Transformer Possible? if Yes, Then Why, if not Then Why?

9 Answers  

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how to find transformation ratio of squirrel cage induction motor

0 Answers   BITM, WER,

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what is meant by IGBT how they differ from tyristor ?

0 Answers  

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If the generator will not synchronize, what will you do?

3 Answers  

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what is use of stater and choke in tube light.?

2 Answers   Aditya Birla,

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can we run all LT motors at 360 volts which are normally rated 415+/-10% voltage rating

2 Answers   Meinhardt,

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Why R ph of Hv and Lv is shorted or joined together while taking vector group?

1 Answers   IOCL,

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bus bar design conditions and sizing pls tell me quickly

0 Answers  

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