what is the advantage of DC Motor over AC motor & Where its
applicable ?
Answers were Sorted based on User's Feedback
Answer / udhaya kumar
DC motors provide excellent speed control for acceleration
and deceleration with effective and simple torque control.
applications:- traction motor,marine lift,Train
motor.etc
| Is This Answer Correct ? | 25 Yes | 2 No |
The brushed DC motor generates torque directly from DC power supplied to the motor by using internal commutation, stationary permanent magnets, and rotating electrical magnets. Advantages of a brushed DC motor include low initial cost, high reliability, and simple control of motor speed. Disadvantages are high maintenance and low life-span for high intensity uses. Maintenance involves regularly replacing the brushes and springs which carry the electric current, as well as cleaning or replacing the commutator. These components are necessary for transferring electrical power from outside the motor to the spinning wire windings of the rotor inside the motor.
| Is This Answer Correct ? | 17 Yes | 2 No |
Answer / ram ganeshia
it is harmonics less high starting torque, easy speed
variation less distortion at brush contacts.
uses: traction, lifts etc.
| Is This Answer Correct ? | 8 Yes | 5 No |
Answer / phanendra babu
it is completely depends on the application i.e where we are
using the motor.if we require high starting torque dc series
motor is applicable or we require better speed vs current
chars. dc shunt motor is suitable,like wise depending upon
the application it will change. and the main advantage of dc
motor over ac is speed controlling ig very very easy
compared to ac motors.
| Is This Answer Correct ? | 6 Yes | 3 No |
Role of active and reactive Power sharing in between two synchronized Generators, Droop Setting role ?
What are the procedures followed for underground cable laying.....???
A powerplant has 8 gensets operating in grid parallel mode. In one genset sometimes there is pf variation and kvar variation. The plant operates in pf mode. When this variation is observed the load is stable, voltage is also stable, freq and genset speed is also stable. How will you check the functioning of pf card. What shall be the ideal output vdc of the pfc, from there it is input to AVR?
How does an induction motor start?
what is skin effect? why is it absentin dc system
How can calculate ups battery back up time?
25 Answers Cisco, Cooper, Pronet, Wipro,
why generaotr rating is in kva and dc motor in kw?
why the transformer secondary voltage is more than the load end voltage like t/f 11KV/433V for 415V(terminal voltage)
WHAT IS THE DIFFERNCE BETWEEN AIS AND GIS IN SWITCH GEAR?
why we use the fuse in only one wire? althrough in ac current the current flows in both directions. why the neutral wire can be taken half the magnitude of phase wire while same current returns from neutral wire?
Write the difference between OCB,VCB ?
In which reason, one end of CT secondry get connected with Earthed? Normaly S1 of CT. Why????
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)