Types of Electrical Motors

Classification Based On Power Supply:

1. Alternating Current (AC) Motors.
2. Direct Current (DC) Motor.

Types of AC Motors :

⇒Classification Based On Principle of Operation:

(a) Synchronous Motors.

1. Plain

2. Super

(b) Asynchronous Motors.

1. Induction Motors:

(a) Squirrel Cage

(b) Slip-Ring (external resistance).

2. Commutator Motors:

(a) Series

(b) Compensated

(c) Shunt

(d) Repulsion

(e) Repulsion-start induction

(f) Repulsion induction

⇒Classification Based On Type of Current:

1. Single Phase

2. Three Phase

⇒Classification Based On Speed of Operation:

1. Constant Speed.

2. Variable Speed.

3. Adjustable Speed.

⇒Classification Based On Structural Features:

1. Open

2. Enclosed

3. Semi-enclosed

4. Ventilated

5. Pipe-ventilated

6. Riveted frame-eye etc.

Types of DC Motor :

1. Permanent-magnet motors
2. Brushed DC Motor 

a.       DC shunt-wound motor

b.      DC series-wound motor

c.       DC compound motor

                                      i.      Cumulative compound

                                      ii.      Differentially compounded

d.      Permanent magnet DC motor

e.       Separately excited

3. Brushless DC Motor
4. Coreless or ironless DC motors
5. Printed armature or pancake DC motors
6. Universal motors


⇒Read Basic of Electric Motors