what happens when ac supply is given to D.C motor.
Answers were Sorted based on User's Feedback
Answer / mallikarjun n
nothing doing...if we give dc supply,o/p will be 24vplts..
if ac,o/p will be 230 volts.if we give ac,motior will run
at const speed.if we give dc,it wil start at 50rpm and
gradully increase 2 160rpm,if it crosses rated rpm winding
will burn will more spark induction takes place..
so dont give ac supply 2 dc motor.be careful
| Is This Answer Correct ? | 2 Yes | 1 No |
Answer / maulik
motor willl run but it will run with reduce speed and also there is a spark in the motor
| Is This Answer Correct ? | 1 Yes | 0 No |
Answer / karthik.n
Because of the presence of low resistance in DC motors. The
motor will not with stand the AC current voltage so the
motor burns after working for some desired period.
| Is This Answer Correct ? | 1 Yes | 3 No |
Answer / mahender
if dc motor is shunt type, then it will rotate.But, if it is
separately excited dc motor then, the motor will not rotate
due to quick change in its direction per every cycle.
| Is This Answer Correct ? | 0 Yes | 4 No |
Answer / aniruddh
AC apply to DCmotor frequency dependent losses increse
(eddycurrent&core)losses
motor gives less output
| Is This Answer Correct ? | 4 Yes | 18 No |
Answer / sam khanji
The Motor will run only on the positive side of the Ac
wave .so it will run and stop then run again and stop again.
but if the volume of the AC is high, then the winding will
be burned due to the high frequency exposed to
| Is This Answer Correct ? | 5 Yes | 20 No |
what is the principle of switchgear and its function
What is the dc grounding system and what is diff between AC/DC grounding system?
Whats the minimum value for I.R. that can be allowed for HT & LT alternators for operation?
why a motor overheated stops to rotate ?????
What is ideal IR values for ground and neutral.
0 Answers Hindustan Power Projects,
draw 3 phase rectifier diagram
what is brushless generator.How does work it..??
1)How much current can a 3-1/2 core 100 mm wire carry? 2)What are the special cables required for explosion proof wiring? 3)In case you do not have coal and salt for earthing, how can you achieve good temporary earthing? 4)One horse power single phase motor is more likely to get hot than a one horse power 3 phase motor. Is it true or false, if true why? 5)What are the different types of soft starters for large motors?please explain?
What is the difference between Droop vs Isoch Control?
WHAT IS FAULT CAPACITY OF HT MOTOR TERMINAL BLOCK? ANY BODY HAVE ANSWER PLZ....POST IT.
Dear Sir / Madam, Actually we requied 64 A MCB, But i have 32 A MCB = 2 No's this two i have to make series connection and we usw any place? isit possible or not......
4 Answers Hindustan Unilever Limited,
what is the bus bar size of 2700 amp ACB breaker ? and what is the cable size ?pls detailed answer ?
Civil Engineering (5086)
Mechanical Engineering (4456)
Electrical Engineering (16639)
Electronics Communications (3918)
Chemical Engineering (1095)
Aeronautical Engineering (239)
Bio Engineering (96)
Metallurgy (361)
Industrial Engineering (259)
Instrumentation (3014)
Automobile Engineering (332)
Mechatronics Engineering (97)
Marine Engineering (124)
Power Plant Engineering (172)
Textile Engineering (575)
Production Engineering (25)
Satellite Systems Engineering (106)
Engineering AllOther (1379)