Applications of DC Motors

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Applications of DC Motors: A dc motor in spite of its high cost as compared to an induction motor is still competitive in applications requiring control speed as its speed can be varied over a wide range by (i) fi eld control, (ii) armature control, or (iii) a combination of the two.

dc MOTOR APPLICATIONS


The dc motors have high starting torque compared to induction motor; hence, there is faster load
deceleration.

Shunt Motor Applications


Medium starting torque; speed regulation 5–15%.


Application: centrifugal pumps, conveyors, machine tools, printing presses, etc.


Series Motor Applications


High torque at low speed and low torque at high speed; high starting torque (as much as 5 T (fl )); good speed control possible.


Application: traction, hoists, crane, battery-powered vehicles, etc.


Compound Motor Applications


Differentially compound motor is ideally suited for pulsating loads (needing fl ywheel action).
Application: Rolling mill, etc

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