The classification of A.C motors is mainly showcased in 5 sections. They are:

Grouping as per speed

• Variable speed
• Adjustable speed
• Constant speed

Grouping as per asynchronous motors

1. Commutator motors:
2. Compensated

• Inductively
• Conductivity

1. Series

• Universal
• Single phase

1. Induction motors
2. External resistance or Slip ring
3. Squirrel cage

• Single
• Double

Grouping as per current type

• 3 phase
• Single phase

Grouping as per principle of operation

(Existing together)or Synchronousmotors

• Super
• Plain

Grouping as perstructural features

• Splash proof
• Riveted frame eye
• Fan cooled and totally enclosed
• Water proof
• Explosion proof
• Semi-enclosed
• Enclosed
• Open
• Pipe-ventilated
• Ventilated

Links of Previous Main Topic:-

• Current Electricity Basic Concepts
• Introduction to Alternating Current
• Introduction Three Phase A C Circuits
• Magnetic Field
• General Aspects
• General Aspects Polyphase Induction Motors
• Classification of A C Motors

Links of Next Electrical Engineering Topics:-

• Constructional Details
• Production of Rotating Magnetic Field
• Theory of Operation of an Induction Motor
• Slip
• Frequency of Rotor Current
• Rotor E M F and Rotor Current
• Torque and Power
• Effect of Change in Supply Voltage on Starting Torque
• Effect of Change in Supply Voltage on Torque and Slip
• Torque Slip and Torque Speed Curves
• Operating Characteristics 3 Phase Squirrel Cage Induction Motor
• Shows a Wound Rotor Induction Motor with Controller Rheostat
• Power Stages in an Induction Motor
• Induction Motor as Transformer
• Equivalent Circuit of an Induction Motor
• Starting of Induction Motors
• Factors Governing Performance of Induction Motors
• Effects of Operating Conditions
• Ratings of 3 Phase Induction Motors
• Squirrel Cage Motors Advantages Disadvantages and Applications
• Wound Rotor or Slip Ring Induction Motors Advantages Disadvantages and Applications
• Comparison of a Squirrel Cage and a Slip Ring or Phase Wound
• Comparison Induction Synchronous Motors
• Highlights in Polyphase Induction Motors
• Single Phase Motors
• Characteristics of D C Generators
• Measuring Instruments
• Power Supply System