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Jemshah
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JemshahEnlightened
Asked: January 1, 20232023-01-01T09:55:36+00:00 2023-01-01T09:55:36+00:00In: Electrical Installation Questions

List four types of D.C motors. (4 marks)craft1 electrical June/July 2020

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List four types of D.C motors. (4 marks)craft1 electrical June/July 2020

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    Jemshah Enlightened
    2023-01-01T09:57:06+00:00Added an answer on January 1, 2023 at 9:57 am
    1. Series DC motor: A series DC motor has a high starting torque and is able to operate at high speeds. However, it is less efficient than other types of DC motors and is not commonly used.
    2. Shunt DC motor: A shunt DC motor has a relatively low starting torque and is able to operate at a wide range of speeds. It is more efficient than a series DC motor and is commonly used in applications that require precise speed control.
    3. Compound DC motor: A compound DC motor has a combination of series and shunt winding on the stator, which allows it to have a higher starting torque and better speed control than a pure series or shunt motor.
    4. Permanent magnet DC motor: A permanent magnet DC motor has permanent magnets on the stator, which provides the magnetic field required for operation. This type of motor has a high starting torque and is able to operate at high speeds, but is less efficient than other types of DC motors.
    5. Brushed DC motor: A brushed DC motor has a set of brushes that make contact with the rotor and supply the electrical current required for operation. This type of motor is simple and inexpensive, but has a lower efficiency and a shorter lifespan than other types of DC motors.
    6. Brushless DC motor: A brushless DC motor has no brushes and relies on electronic commutation to supply the electrical current to the rotor. This type of motor is more efficient and has a longer lifespan than a brushed DC motor, but is more expensive and requires more complex electronics to control.
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