what will happen ac motor give to dc supply

Answer Posted / ashwin g reddy

AC motor works on the principle of induction..
The windings in the ac machine are wound either is delta or
star wound. ( ac machine windings )
Only if there is a rotating magnetic field we have an emf
being induced and hence the current.
So only when these current carrying conductors are placed in
the magnetic field, there is a torque!

So if we give a dc supply.. no emf hence no current and
hence no motion! Its in stand still position!

Is This Answer Correct ?    24 Yes 2 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

when ID fan will immediately stop through VFD what exactly cause and problem the ID fan

976


what are the applications of transistors with low dc gain, high dc gain and medium dc gain( beta)?

1291


how is the incoming cable size calculated for a given current rating of a panel??

1424


Practical condition in 400KV Sub station:- Breaker(open) , isolator(open), Earthing (close) at both end e.g A & B. Now Open A Stn Earthing than Open B stn Earthing (Which have a 50MVA reactor) , AND suddenly show R,Y,B phase 704KV,573KV,118KV respectively. Que is without closing of breaker how it is possible.???? My Whats app No:07621840498 for Further Discussion. Pls experts suggest.

1572


What is size 00, 01, 1 etc., in HRC fuse types?

1836






What is the simplest formula to calculate the rotor diameter of a synchronous generator?

1896


in HT service 3ph 4 wire service Y-phase voltage shows zero . whether it is meter fault? or what be the reason ? if y-ph voltage zero ,can current is recorded? reasons for failure?

1400


Differentiate between Zero and Negative sequence current

1437


How to calculate capacitor bank value to maintain unity power factor with some suitable example?

659


when ac current flows thru d coil of a contactr,it energizes,magnetic field attracts d contact of the coil...nw wont dt ac current in d contct induce current back on to d coil thru mutual inductance leading to high currnt in d coil

1254


please send me the previous year's question papers of jindal GET exams

5504


what happen if generator of micro hydro running at only a small percentage of its capacity, as a comparison, if the diesel generator that runs on only a fraction of its capacity there will be a wet stacking

1434


Explain using drawings what is reverse PID action w.r.t PID controllers.

2743


Explain and give examples about VCB?

2879


Dear sir, I have completed DECE in the year 1995. I have work experience in HT and LT LINE more than five years. Now i am doing BE in EEE from rajasthan university. After completion of BE,can i apply "C" Licence sir? Please reply.

1483