Sunday, September 27, 2020

Types Of DC Motor / Induction Motor & Characterstics

Posted by Pranshu Bahuguna on September 27, 2020 Electrical knowledge No comments

Dc Motor:

Motors which runs on the dc supply.

Motors	Definations	Characterstics & Applications
Dc Series Motor	When the field winding is connected in series with the armature winding is known as Dc Series Motor.	Have Highest Starting Torque than other Dc motor. Variable Speed is possible
Dc Shunt Motor	When the field winding is connected in parallel with the armature winding is known as Dc Shunt Motor.	Have medium Starting Torque Constant Speed
Dc Compound		Have High Starting Torque variable Speed is possible.

Induction Motor:

Three phase Induction Motor runs on three phase alternating Current are self starting,current is provided to the stator,a rotating magnetic field is produce and the rotor starts moving.

Squirrel Cage IM	In squirrel cage,Due to rotating field current starts flowing in short circuit rotor bars.These current produce self magnetic field which opposes main flux and rotor starts moving whose speed is less than synchronous speed.	High overload Capacity Nearly constant speed Low cost Havc low starting Torque
Slip Ring IM	In Slip ring,stator construction is same as SCIM	High Starting Torque Always operates at synchronous speed under varying load