which types of relay used in acb and vcb?

0 Answers   IBM,

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ELCBs are installed for protecting humans from AC leakage current.Is there a device which protects humans from DC Leakage current??e.g.leakage from batteries...If not,then why so???

1 Answers  

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What cmos is and its benefits?

0 Answers  

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What is the equivalent circuit of a transformer and its vector diagram?

0 Answers   Bhel, Madhucon,

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nwhat are the main Components of servo motor?

0 Answers   BARC,

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A rotor of an induction machine is delta connected. Now is there any necessacity to short the slip rings?

8 Answers   TCS,

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150 hp moter how many kwh in 1 hour and what forfula 3 phase kwh.

5 Answers   College School Exams Tests, CPCL, Syncom, Thermax,

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What is the function of NGR for the parallel operation of alternator? whats happen when different rating of alternator are running with parallel?

0 Answers   Welspun,

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In iduction motors the current is higher than normal for both the cases when the voltage appllied is more than the rated as well as less than the rated, why?

2 Answers  

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2. If 8.35%Z means the percentage impedance of 132/11kV transformer self,will like to reconfirm the percentage impedance that is supplied from power company?

2 Answers  

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can we use existing 6300V alternator for generating 6600V by increasing excitation,what are advantages & disadvantages to alternator & motors of 6600V.

1 Answers   GMR,

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Can anyone explain how the vector diagram of a transformer which doesn't have name plate be found whether it is Dy11/Dy5/Yd11 and so on?

4 Answers   TATA,

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