NEWS

Electric motor fault judgment and maintenance

When the motor runs or fails, four methods can be used to prevent and troubleshoot in time by seeing, hearing, smelling and touching to ensure the operation of the motor.

Motor fault detection and troubleshooting methods

Measurement methods are as follows: use the multimeter 20A gear, the multimeter red and black meter in series with the power input of the controller. Turn on the power supply, in the case of the motor does not rotate, record the current value of the multimeter A1, turn the handle, so that the motor high-speed no-load rotation for more than 10 seconds, after the motor speed stability, start to observe and record the value of the multimeter A2. motor no-load current = A2 - A1.

Motor maintenance and repair knowledge book

1、What is the motor? A: The motor is a component that converts battery electric energy into mechanical energy to drive the wheels of electric vehicles to rotate. 2、What is the stator? A: Brush or brushless motors do not rotate when working part. Hub type brush or brushless gearless motor motor shaft called stator, such motors can be called internal stator motor.

Monitoring during motor operation

When the motor is in operation, the duty staff can monitor its operation through instruments and sensory organs in order to find out the problem early and reduce or avoid the occurrence of malfunction.

Exports of electrical and mechanical products are showing significant improvement

Statistics from the General Administration of Customs show that in a single month of September, China's exports of mechanical and electrical products 68.54 billion U.S. dollars, a sharp decline to 12.6% year-on-year, far better than the January-August drop of more than 20%.

Preparation before starting the motor

Preparation before starting the motor In order to ensure that the motor starts normally and safely, the following preparations should be made before starting.

Suppression of high voltage motor noise

Take measures to reduce the various sounds emitted during the operation of the motor. Theoretically, there should be no sound when the motor is running, so any sound emitted during the operation of the motor can be classified as noise of the motor. These noises include electromagnetic noise, mechanical noise, aerodynamic noise.

Points to note when starting high voltage motors

(1) If the motor does not rotate after the power is turned on, the power should be cut off immediately, never hesitate to wait, and never check the motor fault with electricity, otherwise it will burn the motor and be dangerous.