What is meant by transformer, why it should be used, with out that equipment what happens if we transformed the supply?

12 Answers   Bhel,

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The synchronous machine excitation system explain

0 Answers  

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How can we calculate the power factor of an electrical appliance ? Is there any formula ? Is there any meter around to calculate it ? And how to use that meter ? thanks

2 Answers   Essar, Philips,

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Differentiate between ideal and non-ideal voltage sources?

0 Answers  

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pls someone send me sample question papers along with the key.thanks in advance

0 Answers   HPCL,

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Can I use distributon class/transmission class Lightning arresots for protecting the building? If not why please explain?

0 Answers  

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How many types of probe used in cro?

0 Answers  

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single phase 230v three phase voltage 415volt why we aren't used line voltage 690v?

7 Answers   Citec,

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Why do we require transformer with less specific weight if supply frequency is increased?

0 Answers  

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Why transformer is rated in kva?

4 Answers   L&T, NDPC,

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for which possible reasons a motor can fail to start??

4 Answers   CEB, Essar,

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Why DG self motor winding burnt out?

1 Answers   Aegis,

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