why HT wire making noise?

3 Answers  

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I am getting above 60 V as open delta voltage against single phase unit ICT at tertiary delta formed and ICT getting trippped on NDR. ICT tested and found in order. PTs provided on tertiary are tested and in order. what may be the reason?

0 Answers  

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sir i ve applied for hindustan petroleum and power grid india ltd..and the exams on feb 22.can you pls send model papers and tell how to prepare for those.i need to get into any of these for sure.....

0 Answers  

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why we do occ & scc test in transformer ?how we can do it ?

2 Answers  

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In auto transformer if power transferred inductively and conductively are same, the ratio of output/input voltage is A 1 B 0.7 C 0.5 D none of above

2 Answers   Getco,

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voltage of a ckt is measured by volt meter having an input impedence camparable with the out put impedance of the ckt Eror caused is 1. Gross Error 2. Errors due to lloading effect

2 Answers   GATE,

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how can we run the induction motor at 9000 rpm ,by keeping frequency constant??

2 Answers  

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What is type of transformers?

3 Answers  

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Define CT & its function

6 Answers   Essar,

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Classify drilling machines.

0 Answers   Ashok Leyland,

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if we install two earth pits with a clear space of 5m without any interconnection,by checking the digital multimeter will it show continuity between earth pits? If so what would be the approx. value

0 Answers  

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how to changeover ups in this power failur time?

0 Answers   Essar,

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