How to connect a single-phase series motor

The wiring of a single-phase series-excited motor is relatively simple. Usually, you only need to connect the positive and negative poles of the power supply to the two brushes of the motor. The wiring method of a single-phase series-excited motor is shown in the figure below:

Among them, AC power source represents single-phase AC power supply, brush represents brush, rotor represents rotor winding, stator represents stator winding, and load output represents the output end of the motor.

The following points should be noted when wiring:

The motor brushes need to be correctly connected to the positive and negative poles of the power supply, otherwise the motor will not work properly.

The rotor and stator windings of the motor need to be arranged correctly, otherwise the performance of the motor will be affected.

A single-phase series-excited motor can only be connected to a single-phase AC power supply and cannot be connected to a three-phase power supply.

Since the torque and current of a single-phase series-excited motor are proportional, it is necessary to pay attention to controlling the current and load of the motor in practical applications to avoid motor overload and reduced efficiency.

In short, the wiring of a single-phase series-excited motor is relatively simple, but some details need to be paid attention to to ensure the normal operation and performance of the motor.

Notes on wiring of single-phase series-excited motors:

The quality requirements for brushes are relatively high, and carbon brushes or metal brushes are generally used. The choice of brush material should be determined according to the power and working environment of the motor.

The motor brushes need to be replaced and maintained regularly to ensure the performance and life of the motor.

The speed of a single-phase series-excited motor is relatively low, generally below 1500 rpm. Therefore, in practical applications, it is necessary to select an appropriate speed based on the working conditions and load conditions of the motor.

Since there is a large relationship between the current and load of a single-phase series-excited motor, a motor controller or electric regulator is required to achieve speed and load regulation of the motor.

When wiring, you need to pay attention to the insulation of the motor and use wires and insulating materials with better insulation performance as much as possible to ensure the safety and reliability of the motor.

In short, the single-phase series-excited motor is a simple and reliable motor with relatively simple wiring, but in actual application, attention should be paid to the maintenance and control of the motor to give full play to its performance and function.