Answer / anand

nc is normally contact to common terminal,when gives supply to the relay common contact to no contact

Answer / k.prakashchandra

You mean the aux switches of cb ? There are NO and NC
contacts (determined when the cb is in open position)which
operate when the cb opens or closes.

what is the use of earthing?

1 Answers   CPCL,

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For these 2 devices what their power ratings are ? 1) single phase : AC 220V & starting amps 3Amps (i.e. starting torque) and the stabilized amps 2A ... For deep freezer 2) single phase : AC 220V & starting amps 2.7Amps (i.e. including the starting torque of a CRT monitor) and the stabilized amps 1 Amps thanks

1 Answers  

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Why we are mostly using a single 3-phase transformer instead of three 1-phase transformers?

7 Answers  

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Why corona takes place?

4 Answers   L&T,

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which inert gas is most apt to be used in a fluorescent lamp?? why ??

1 Answers  

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how do we calculate of transformer in va?what is calculation?

2 Answers  

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What is static frequency control used in gas turbines

1 Answers  

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Why pmg used in electrical generators for excitation.is there any other method without pmg ?

1 Answers  

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What do you mean by power transformer?

0 Answers  

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when we increased the current what do ?

0 Answers  

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what is meant by re-rolling motor? how it differs from standard motor?

0 Answers  

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How delta connection in the primary of distribution transformer reduces harmonics?how delta connections reduces harmonics?Please answer me...Hope that question is correct.

0 Answers  

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