Parameter | DC motors | Induction motors |
---|---|---|
Supply | DC | AC |
Maintenance | Frequent | Less frequent |
Speed | Low | High |
Size and weight | Large | Small |
Speed control | Rheostatic control, field control | Stator voltage control, stator frequency control. |
Applications | Lathe machine,drilling and milling machine, printing machinary, pumps, blowers and fans. | Fans,pumps,extruders,conveyors,in paper and sugar industries, traction, chemical and textile industry. |