Elaborate the term "rotating magnetic field"

2 Answers   APTransco,

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During regenerative breaking= A rotating magnetic field is reversed B slip is positive C torque is positive D slip is negative

0 Answers   Core Solutions,

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-What shall be short circuit current of LV switchgear for a 1000 kva, 11.415kv, 3 phase tranformer with 5% reactance.

0 Answers  

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why in some trains in India Electric equipment such as Fans , tube light not work until locomotive or engine is attached to the train ??

1 Answers  

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what is ATS & RING MAIN UNIT in Distribution System?And its Function.

2 Answers  

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How does CT can measure the high value DC current?

4 Answers  

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what is the function of AVR in generator? how the generator maintain the frequency while varies the load?

1 Answers  

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how can we know cable size for a given current? if any one have catalogue plz mail to vijay_raju369@yahoo.co.in

5 Answers  

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i am swathi, b.tech 4th year. In smps(switched mode power supply)we are using diodes,mosfets,igbts for controling of current. And my question is why we did not use thyristors(scr)? it is also act as a switch,then what is the drawback of scr as compared to above transisters> if we use the scr,then what is happening ? plz give reply as soon as possible bcoz i am doing project on smps. plz frnds i want ans for that. if anybody know the ans plz send to my e-mail id /swathi.tadakapally@gmail.com/

5 Answers   EEE, TCS,

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Which pump set is more suitable and economical for liftingwater from 300Mtr borewell? A. Compressor Pump B. Submersible Pump C. Jet Pumps D. 25HP Centrifugal Pump Q. from PSC Test 22-11-2008 Meter reader

8 Answers  

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The inexpensive way to improving energy efficiency of a motor which operates consistently at below 40% of rated capacity is by _____.

2 Answers   IFFCO, Sanmar,

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What is the name of process In VFD frequency are increase then voltage increase & frequency decrease then voltage decrease?

0 Answers  

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