| Other Electrical Engineering Interview Questions |
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|what are corona losses
|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.
|Who we calculate the generator NGR resistant, generator
voltage 11 KV ?
|a transformer can have zero voltage regulation
a)o pf b)1 pf c)lagg pf d)lead pf
|how we check vector group dyn7
|1.what is difference between line,neutral and earth
2.IF single phase voltage is 230v ac and what should be the
voltage between line to neutral,neutral to earth and earth to
|What happens with squirrel induction machines if the ends of
rotor conductors are kept open? Explain
|what is "PE" earthing? and what do u know abt 16mm cable?
|what type of motor are there in megger how they work.
|when a hand crancked meggar is used to check most three
phase induction motors, how many tests r rquired? Why?
|what is the use of neutral displacement relay
|what is difference between power & distrubution
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