Answer / ali

Hi ,

My 50/60MVA ONAN/ONAF power transformers tripped at 47MW power , but no windding temp alarm or trip , no any other indication, just PRV trip, what is the reason ?

What are the advantage of free wheeling diode in a full wave rectifier?

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How one can check the charger of the mobile phone or any other charger .......... that is it working ? if , working is it delivering the required supply which is needed by the battery to charge properly ?

4 Answers  

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Why derating factor os applied on Cables?

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What happen if LV supply is fed to a HT motor?

19 Answers   ITC Infotech, Jindal,

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whose the first invented AC voltage or DCvoltage

4 Answers  

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when we connect a CT in the line will there be any loses in the line due to the mutual inductance of the CT.

1 Answers  

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What is high frequency grounding????Applications........

1 Answers   Emerson,

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what is residuel magnetism

1 Answers  

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what is MFD value in capacitor?I have 201 Kva load & reactive power is 150 Kvar. so how it is calculated?

2 Answers   IIT,

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Dear sir, iam completed iti ncvt electrician 2000-2002 & diploma electrical eng completed 2008-2010 distance education in rvd university, still i got B licences only but my working company want C licences, how to i get c licencese pls reply me iam in critical situation thank you karthick 9841637803

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in conventional fan regulators how the current varies with speed?

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Which of the following are ill suited for energy efficient motors application?

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