Dc motor excitation method

Separately excited dc motor,excitation winding and armature winding connection relations,while the other dc power supply for power supply of dc motor excitation winding,called separately excited dc motor wiring as shown in figure (a).Diagram,M said motor for generators,is expressed in G.Permanent magnet dc motor can also be seen as a separately excited dc motor.2.Shunt dc motor,shunt excitation winding dc motor in parallel with the armature winding,electricalmotor1.blogspot.com wire as shown in figure (b).As a shunt generator,is itself to the terminal voltage of excitation winding machine power supply;As a shunt motor,the field winding and armature sharing the same power,tell from the performance of the same as the separately excited dc motor.

3.The series dc motor,series dc motor excitation winding and single phase electric motor armature winding in series,meet again in dc power supply,wire as shown in figure (c).The excitation current of dc motor's armature current.4.The compound dc motor,shunt and series compound dc motor two exciting winding,wire as shown in www.dongfeng-motor.com

figure (d).If the series and the magnetomotive force produced by winding magnetomotive force produced by the shunt winding in the same direction is called cumulative compound.If two magnetomotive force in the opposite direction,it is called a differential compound.Dc motor has different characteristics of different excitation methods.In general,the main excitation mode of dc ac electric motor motor is a shunt type,series type and compound type,the main excitation method is separately excited dc generator,shunt type and compound type.