Ratings of power transformer,Distribution transformer.

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why some time Railway Fan not Rotate,But after a small rotation by human then it rotate normally? Why?

4 Answers  

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describe the A.C. Generator Testing procedure

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what are all types of cross section in AC cables?

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What are the criteria shall be considers for sizing Fuse and MCB? If the rated current is 10Amps what should be the fuse size / MCB Size?

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practicalLY what is impedence ...?

2 Answers  

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how to improve IR value in HT motors?

3 Answers   ABB, AMW, Macleods,

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can we use 220 volt 15 w a.c. lamp on 220 volt d.c.

6 Answers   TCL,

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A circuit breaker is a

9 Answers  

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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 is the problem when i want to close a circuit breaker by local position it closes well.but when i close it in remote position it trips

0 Answers   KPCL, MDIM,

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power 148kw i need exat cable size in 148 kw in 3phase what size of cable can i used.

3 Answers  

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