EET-226 Lecture Notes - Lecture 18: Dc Motor, Field Coil
Document Summary
A dc motor is an electrical machines that converts direct current electrical energy into mechanical energy. The most common types rely on the forces produced by magnetic fields. Types of dc motors: dc series motor, dc shunt motor, dc compound motor. The series motor provides high starting torque and can move very large shaft loads. The field winding is connected in series with the armature and will carry the same amount of current that passes through the armature. For this reason, the field is made from heavy-gauge wire that is large enough to carry the load. The field winding is connected in parallel with the armature instead of in series. Winding is placed in parallel with the armature, it is called a shunt winding and the motor is called a shunt motor. The shunt field coil is made up of fine wire, it cannot produce the large current for starting like the series field.
