why does chattering take place in ac contactors? can it be avoided & what care does the manufacturer take to eliminate this phenomenon????

10 Answers  

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What size cable is used for HT cable to the transformer of 630kVA, and the supply voltage is 11kV

2 Answers  

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Do you know the alignment of a motor?

8 Answers   Reliance,

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Why the Voltage rises when Leading Power Factor is occurs?

2 Answers  

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what is the procedure to carry out BDV test of a transformer ?

3 Answers   BirlaSoft,

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Without seeing the nameplate descriptions of a rotating machine,Is it possible to say which one is a motor and which one is a generator? How would you certain this?

3 Answers  

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how system fault level is calculated?

1 Answers   HCL,

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what are advantage and disadvantage of hvdc transmission . please tell us technic of hvdc technology

2 Answers  

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can we increase our frequency rate in INDIA?

4 Answers  

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we touch other end of the tester supply, why do not get shock?

7 Answers   L&T,

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why the transformer has no starter

2 Answers   NTPC,

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what is the potential of 11kv A.B.Switch

1 Answers   Power Grid,

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