Answer / mahadev kandagalla

There may be sudden increase in current, due to sudden DEACCELERATION that time drive may trip so my suggestion is that in any VFDS you will get DEACCELERATION time setting so just set it for a proper timing so that drive will not get trip.

Why selected cable colour red yellow and blue in 3 phase Electrical system?

9 Answers   Crompton Greaves, Essar, Gridco,

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Explain the operation principle, advantages and disadvantages of the following converters: a) A 12 pulse converter b) A Switch-mode inverter c) A thyristor inverter

0 Answers  

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If we touch the Capacitor terminals you feel shock after the capacitor was put in operation and not in case of inductor though both are energy storage elements.why?

4 Answers   HAL,

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how to calculate the earthing conductor & no. of earth pits required

3 Answers  

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Does the ferranti effect has some impact on the electricity billing system on high voltage installations?

1 Answers   IISc,

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why do we have spikes enough to burn electronic boards, when generators are not grounded

0 Answers  

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xplain in detail d pr. of synchronous motors? why syn. generators r used for the production of electricity?

4 Answers  

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why there is a phase difference between line voltage & phase voltage ?

4 Answers  

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improve power factor by : 1)shunt reactor 2)shunt capacitor 3)series capacitor 4)series reactor

2 Answers  

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I am working in transmission network, one of my 66kv line having short distance about 6km, when sending end voltage is 67kv receiving end get 69kv, i want to know that, does distance affects in this matter, please explain in this matter & if possible answer me on my mail id, kaushikkumar.vanavi@getcogujarat.com, kaushik.vanavi@gmail.com

5 Answers  

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trasformer ratting

2 Answers   Bhel,

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how to identify the direction flow of electrons in a conductor? if i want to check the sequence in kv lines, is any device is available?

3 Answers  

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