Answer / janairoad

Control circuit

Answer / ankit

to control the closed circuit..

Answer / k.prakashchandra

You mean 2 contacts are made in series in a MCB? That is to
make doubly sure of opening the circuit.If parallel ,it is
to make closing doubly sure ,as you can expect one of the
contacts to open or close definitely .

i heard that power factor(PF) is the main concern for industries, if they are maintaining PF around 0.6 they will be fined for that. now the question is, how can they improve the PF ranging between 0.9 to 0.95 which is safe for them i,e escaping from the fine?

5 Answers  

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What safety followup during kWh meter isolation

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Is it legal of using 3 phase motors in 2 phase in Tamilnadu?

2 Answers  

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in case of OC+EF relay, how the burden is divided/calculated/shared by the CTs in case of normal (healthy condition) and during fault conditions.? three coils of OC & ef coil is conected in residual connection across the three CTS.

1 Answers  

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advantages & Disadvantages of Solar power system?

2 Answers  

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what is diffential relay? testing proceure?and transformer reach Over load thet time differencilal relay operate or not ?

5 Answers  

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Difference between earthing & grounding.?

3 Answers   ABB,

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What is tan delta & PPM in transformer? and whats its IS value?

0 Answers  

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i want to put single phase load on scott connected transformer,eventhough how to balance the transformer.

0 Answers  

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what are the ratings of sockets?

10 Answers   L&T,

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i alternator which of genarator used for excitor the what is reason?

3 Answers  

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when transformer in load condition neutral earth testing wheater we can do it or not

1 Answers  

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