Application of dc motor

There are five types of DC motor

• PERMANENT MAGNET DC MOTOR
• SEPARATELY EXCITED DC MOTOR
• SERIES DC MOTOR
• SHUNT DC MOTOR
• COMPOUND DC MOTOR

• Permanent magnet dc motor 

1. All motors except permanent magnet dc motor (PMDC) are used in industry. PMDC is mainly used in automobiles to operate windshield wipers and washers.
2. To raise the lower windows.
3. To drive blowers for heaters and air conditioners etc.
4. They are also used in computer drives.
5. These types of motors are also used in toy industries.

• Separately excited dc motor 

1. Separately excited DC motors are often used as actuators in train and automotive traction applications.
2. Because of their ability to give a wide range of voltage output, they are generally used for testing purpose in the laboratories
3. It can be used for variable speed applications.
4. It can be used in low-speed applications and independent of torque, such as paper mills, rolling mills, etc.

• Series dc motor 

1. DC series motors are used where high starting torque is required and variation of speed is possible.

      Series motor is used in

1. Traction system
2. Cranes
3. Air compressors
4. Vacuum compressors
5. Sewing machine

• Shunt dc motor 

Shunt motors are used where constant speed is required and starting conditions are not severe.

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      Shunt motor is used in

1. Lathe machine
2. Centrifugal pumps
3. Fans
4. Blowers
5. Conveyors
6. Lifts
7. Weaving machine
8. Spinning machine

• COMPOUND DC MOTOR 

The compound DC motors are used where higher starting torque and fairly constant speed are required.

   Compound motors are used in

1. Presses
2. Elevators
3. Rolling mills
4. Heavy planners