Answer / sudhanva

If the angle between current phasor and voltage phasor becomes equal to zero then such circuits are called pure resistive and if that angle becomes equal to 90 , it is pure inductive and if the angle becomes -90 , it is pure capacitive. Here current phasor is taken as reference..

In power transformer tappings are provided on A high voltage side B low voltage side C In middle of both the windings D both high and low voltage side

2 Answers   NNN,

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why we use circuit breakers for switching instead of normal switching device?

0 Answers  

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which motor will u use in refinaries?

1 Answers   IOCL,

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I have carried out wiring for lighting in a shed in Industrial area which contains Metal halide lamps & have balanced in 3ph.Now when we put all the lines on in the daytime the current taken at 3phases at MCB comes to be equal i.e.28,29,28Amps respectively but in the night time i.e between 7p.m.to 11p.m. at the same MCb the current is 52,59,62Amp, though I have fit 63A MCB it is tripping in the above period.What may be the reason.? Note: This industry is located in industrial area where majority of steel ingot manufacturing plants are there. Whether this may be due to harmonic? what should I do to overcome above problem.pl suggest urgently.

4 Answers  

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what are the checks of diesel gensets

2 Answers   Hathway,

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why mostly conductor made by 7 nos wire?

1 Answers  

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what is the maximum current carrying capacity of a 95 sqmm cupper under ground cable laid partialy in land and partialy in ground?

4 Answers  

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why tertiary winding is used in transformer with diagram?

0 Answers  

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Why is the earth pin in a 3-pin plug the longest and the thickest?

10 Answers   IBM,

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What are the Safety Steps While Inspection the LT Panel.  

1 Answers  

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Why open circuit test of transformers is conducted at rated voltage??Why not any other voltage??

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How do ACB are maintenance, what are the problem occurred in ACB

1 Answers   KIML,

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