why we use dc motor instead of ac motor?
Answers were Sorted based on User's Feedback
Answer / navnit bhimani
Because dc motor have high starting torque than ac motor
|Is This Answer Correct ?||53 Yes||6 No|
Answer / e venkat reddy
due to high starting torque and smooth speed control these
motors are preferred in many application but in present
scenario all dc motors are replacing by electrical drives
due to development of power electronics like IGBT etc. the
DC motor requires high maintenance compare to AC motors and
with IGBT driven ac motors we can get smooth speed and
|Is This Answer Correct ?||42 Yes||2 No|
Answer / sunil guru
EVEN NOW DC MOTORS ARE PROFFERED BECAUSE.....
1.HIGH STARTING TORQUE.
2.EASY CONTROL OF FIELD EXCITATION SO SPEED CAN BE
3.HIGH SPEED VARIATION IS POSSIBLE
4.BETTER STARTING AND BRAKING CHARACTERISTICS
used in lifts,hoists,cranes,traction systems........
|Is This Answer Correct ?||28 Yes||5 No|
Answer / sudhir patil
Because of high starting torque at verioues speed.
|Is This Answer Correct ?||17 Yes||3 No|
Answer / john davidson
With the advancement of AC drive technology AC motors can
do just about anything a DC motor can do. They can develop
full torque at zero RPM, once the holy grail of DC,have a
wider speed range, and amost zero maintenance requirments.
And to top all that from an intial cost stand point AC
motor/drive combinations are much cheaper. As for
industrail application, in the vast majority AC is the
|Is This Answer Correct ?||5 Yes||0 No|
Answer / priyadarshi pritam
Because it can be operated using rechargeable batteries, its easy availability and small size.
|Is This Answer Correct ?||2 Yes||5 No|
Answer / venki
along with poibilty of carrying small dc batteries
|Is This Answer Correct ?||1 Yes||5 No|
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