why we use only sine wave in ac why we do not use other wave forms

21 Answers   BARC, NTPC,

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how we check vector group dyn7

1 Answers  

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What is inverse definite minimum time lag relay? Where is it use?

0 Answers   TATA,

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What is difference between Earthing, Ground and Neutral?

1 Answers   ABB, ABC, Indo Asian,

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What is principal to reduce earth leakage current with isolation transformer? When isolation transformer is installed in input stage of system, earth leakage current is reduced. the reason is why the leakage current of 2nd stage of isolation transformer does not affect the 1st stage's leakage current. I would like to know the reason. As you know, earth leakage current is a kind of AC. So, How to reduce earth leakage current in case that isolation transformer is used?

2 Answers  

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Hello to all, Please someone can send me HPCL ELECTRICAL Engg. Sample papers to me? Its urjent....my email address is.... raviasiapacific@gmail.com

0 Answers   HPCL,

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How to find the maximum load, that can be supplied by a transformer.....

2 Answers   ME,

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Why does the power consumed is always constant even if a fan speed is altered?

4 Answers  

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Load 380kva eb 415v,load amps 350.Same load dg 415v,load amps 420 what reason ?

1 Answers   AVT Natural Products,

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how we can calculate power factor without knowing current in 230v 100w load ?

10 Answers  

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I want to ask a question which i faced during testing of Capacitive Voltage Transformer in AIS. We have measured the C1 , C2 individually , but when we start to measure the total C1+C2 , the testing equipment shuts down and says low loading. Kindly is it possible to find the total capacitance by using measuring device. kindly briefly explain the procedure.

0 Answers   AIS,

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how to maintain standard votage in power system?

5 Answers  

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