What is the function of centrifugal switch in split phase motor
Answers
Answer:
Applications. Perhaps the most common use of centrifugal switches is within single-phase, split-phase induction motors. Here, the switch is used to disconnect the starting winding of the motor once the motor approaches its normal operating speed.
Answer:
A centrifugal switch is an electric switch that operates using the centrifugal force created from a rotating shaft, most commonly that of an electric motor or gasoline engine. The switch is designed to activate or de-activate as a function of the rotational speed of the shaft.
Explanation:
How do Centrifugal Switches work?
A centrifugal switch is an electrical switch normally found in signal phase induction motors and split-phase induction motors.
This switch is used to provide a controlled switching operation that is required in the engine when the specified engine speed is generated.
The centrifugal switch is based on the concept of centrifugal force. It’s just an electric switch. These switches are specially designed for induction motors in single and split phases.
As its operation is identical to that of a centrifugal clutch used in vehicles, the centrifugal switch is generally known as a ‘clutch’.
A single-phase AC engine has a centrifugal switch inside its case, which is attached to the engine shaft. When the engine is off and motionless, the switch is closed.
When the engine is switched on, the switch drives electricity to the capacitor and the extra coil winding in the engine, increasing its starting torque. As the engine’s revolutions increase per minute, the switch opens, as the engine no longer needs a boost.
A centrifugal switch solves a problem associated with single-phase AC electric motors. They do not develop enough torque on their own to start turning from a dead stop.
A circuit switches on the centrifugal switch, providing the requisite boost to start the motor. The switch turns off the boost circuit until the motor reaches its running speed, and the motor runs normally.