When to use Oil Transformer type and When to use Dry type? What is the difference between both?

2 Answers   ABC,

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what is demagnetising effect & crossmagnetising effect and how it is related to electrical system?is there any more effects are available or only these two??

1 Answers   Telco,

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whats the advandage of PMG in alternator?

2 Answers  

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how we are measuring the import and export power?

1 Answers  

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Which motor connection is preferable star-delta or delta-star?

0 Answers   IOCL,

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What are the advantages of thermal power plant?

0 Answers  

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1.Why we use choke?If we use for high starting voltage then different type choke gives different voltage. Is it correct?

2 Answers   Dalkia, Luminous,

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witch pump used in wtp

0 Answers   Dalkia,

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condider as 100 w lamps glowing . for completing a one unit how much time it should glow

3 Answers   Avalon,

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why is power supplied in 3 phase only? why not in 2 or 4 phases?

11 Answers  

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oltc of a transformer, how it works? and what are the equipment consist of describe briefly?

0 Answers  

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Hi, what is 100 % stator earth fault protection and how it can be achieve by 3rd harmonics and low frequency injection principle ?

1 Answers  

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