The simplest connection of forward and reverse rotation of two-phase motor

The positive and negative wiring diagram of 220v motor is as follows:

Single-phase capacitor motor has two windings, namely starting winding and running winding. The two windings are 90 degrees apart in space. A large-capacity capacitor is connected in series with the starting winding. When the running winding and the starting winding pass through single-phase alternating current, the current in the starting winding leads the current in the running winding by 90 degrees in time and reaches the maximum value first.

Forward and reverse connection method of two-phase motor;

1. The starting winding of a single-phase motor is connected in series with a suitable capacitor, and the two windings of its stator need to obtain two rotating magnetic fields with a difference of 90 degrees by means of phase-shifting capacitors to automatically rotate.

2. To change the direction of the motor, the starting winding can be found at the contact point of the lead-out wire of the motor winding, and one end of the previous series capacitor is switched and connected to the other end wire originally connected to the common point, so that the purpose of changing the direction can be achieved.

3. If the main and secondary windings of the motor are the same, it is necessary to control the steering at will; Just connect the power line of the original capacitor to both ends of the motor capacitor through the double control switch, and operate the switch to change the direction of the power supply connected to the capacitor, so as to control the rotation of the motor.