The control system is used for?

3 Answers   CCP, NTPC,

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How single phase & 3 phase motor select rotating direction ie clockwise/anticlockwise

6 Answers   DRJ ARDE,

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what is the difference between squirrel cage & slip ring induction motor by construction & working principle ?

1 Answers   Sail,

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What is meant by Active and reactive power?

5 Answers   Siemens,

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whatis mean by voltage?

7 Answers  

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HOW CAN YOU CALCULATE PRACTICAL EFFICIENCY OF A ASYNCHRONOUS INDUCTIONMOTOR OF 7.5KW,& MOTOR IS RUNNING WITH AVOLTAGE OF 410 VOLTS,& TAKING CURENT OF 13 AMPS

0 Answers  

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What are the necessary conditions for production of rotating magnetic field.

4 Answers   BARC,

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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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draw waveform of capacitor or inductor in a d.c ckt(during transient) with zero resistance with it(in series or parallel)also neglect resistance of wire

2 Answers   L&T,

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you are a electrical student, why are you coming for software job.

4 Answers   TCS,

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what is hysterisis loss and eddy current loss? how it occurs?

2 Answers   Aurobindo, MAHINDRA,

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How does a system control centre in a utility plant gets the grid frequency of the electrical network (50 Hz or 60 Hz)by the SCADA system?

1 Answers  

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