DC Motors EEE

Dc Motorsl_Series motor and Shunt motor.

1. Welcome to our presentation

2. DC motors- series and shunt motors

3. Introduce to group members Sha Abu Nasaer ATM Badrul Hasan Arif Azizul Hakim : 213903001 : 213903010 : 213903013

4. Content Introduction to DC Motors Types of DC Motors Construction of DC Motors DC series Motor Series motor applications DC Shunt Motor DC Shunt Motor Characteristics Application of DC shunt motor

5. The term 'DC motor' is used to refer to any rotary electrical machine that converts direct current electrical energy into mechanical energy. Introduction to DC Motors

6. Types of DC Motors The are three types of DC motors: DC Series motor DC Shunt motor DC Compound Motor

7. Construction of DC motor

8. DC series Motor A series motor is a direct current motor that has two windings that are in series, with the same current flowing through each. Use of series motors is generally limited to cases where a heavy power demand is necessary to bring the machine up to speed, as in the case of certain elevator and hoist installations.

9. The applications are: Cranes Air compressor Lifts Elevators Winching system Electric traction Hair drier Vacuum cleaner and in speed regulation application  power tools Sewing machine Electric footing Application of DC series Motor

10. DC Shunt Motor In a DC Shunt motor the field winding is connected in parallel (shunt) with the armature. The shunt winding is wound from many turns of small copper wire and since it is connected across the DC field supply, its field current will be constant.

11. The following are some of the properties of a shunt DC motor: • This DC motor works at a constant speed once the voltage supply is adjusted; • This DC motor is upturned by turning the motor connections around, similar to a series motor; • In this type of DC motor, torque may be increased without sacrificing speed by increasing the motor cur- rent. DC Shunt Motor Characteristics

12. The applications are : Wiper Automatic windscreen Drills Conveyors Fans Boring mills Shapers Blowers Spinning and weighing machine Centrifugal pumps Application of DC shunt Motor