what is ratio test?

1 Answers  

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What is the reason for low voltage in houses?

19 Answers   Maytas,

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in ceiling fan and table fan what is the rotating part and what is the stationary part?

5 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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how inductance related to number of turns in a choke

3 Answers  

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What happen when neutral point connected to core balance current transformer? (Neutral point of an alternator of a 180KVA DG. Neutral point connected to CBCT means enter to the CBCT)

0 Answers   Great Eastern Energy Corporation Ltd,

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1. Why a DC motor starter is called 3 point starter

21 Answers   ABB, CG, College School Exams Tests, Crompton Greaves, Infosys, Siva,

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WHICH SIZE A.B.CABLE IS USED FOR 11KV.

0 Answers   Novel Tech Park, Power Grid,

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Why do we avoid electrical conduits in floors at apartments?

0 Answers  

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what is difference between power & distrubution transformer ?

3 Answers  

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Why machines are avoided to work is saturation region of B- H curve?

3 Answers  

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What is different between DOL(Direct on line starter), VSD, S/S(Soft starter), and A/T(Auto Transformer)

2 Answers  

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