AC Motor Relay and Hard Starting kit Capacitor
AC Motor Relay and Hard Starting Kit Capacitor The rotation of an AC motor relies on the rotating magnetic field generated by the current.
AC Motor Relay and Hard Starting Kit Capacitor The rotation of an AC motor relies on the rotating magnetic field generated by the current. The three-phase motor flows through a three-phase current with a phase difference of 120 degrees, which can generate a rotating magnetic field (changing any two-phase wiring can change the motor's forward and reverse rotation). The single-phase current flowing through the single-phase motor cannot generate a rotating magnetic field, and it is necessary to adopt a certain method to generate a rotating magnetic field. The use of the capacitor is one of the methods and the most common method. The AC motor relay is used to phase separate the current in the two groups to produce a phase difference of approximately 90 , to generate a rotating magnetic field. In three-phase power, the current between each two phases has a phase difference, and no phase separation is required.
AC Motor Relay and Hard Starting Kit Capacitor Capacitance induction motors have two windings, the start winding and the running winding. The two windings are spatially different by 90 degrees. The AC hard start capacitor has a large-capacity capacitor connected in series on the starting winding. When the running winding and the starting winding pass through a single alternating current, the current in the starting winding is delayed by 90 degrees from the current of the running winding due to the action of the capacitor. , first reach the maximum. The hard start capacitor forms two identical pulsed magnetic fields in time and space, which creates a rotating magnetic field in the air gap between the stator and the rotor. Under the action of the rotating magnetic field, the induced current, the current and the rotating magnetic field are generated in the rotor of the motor. The interaction produces an electromagnetic field torque that causes the motor to rotate (the two-phase motor can be reversed at either end of the coil to change the forward and reverse rotation of the single-phase motor).
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