What are the inspection methods before the motor starts?

1. For new or long-term out-of-service motors, check the insulation resistance between the windings and the windings to the ground before use. Usually use 500V insulation resistance meter for motors below 500V; use 1000V insulation resistance meter for motors with 500-1000V; use 2500V insulation resistance meter for motors above 1000V. The insulation resistance should not be less than 1MΩ per kilovolt working voltage, and it should be measured under the cooling state of the motor.
2. Check whether there are cracks on the surface of the motor, whether the fastening screws and parts are complete, and whether the motor is in good condition.
3. Check whether the work of the motor drive mechanism is reliable.
4. According to the data shown on the nameplate, whether the voltage, power, frequency, connection, speed, etc. are consistent with the power supply and load.
5. Check whether the ventilation of the motor and the lubrication of the bearings are normal.
6. Pull the motor shaft to check whether the rotor can rotate freely and whether there is noise during rotation.
7. Check whether the brush assembly of the motor and the brush lifting mechanism are flexible, and whether the position of the brush lifting handle is correct.
8. Check whether the grounding device of the motor is reliable.

Zhejiang Lefeng Electric Appliances Co., Ltd. (former Shengzhou Lefeng Electric Appliances) was founded in 1992. With more than 20 years' hard work, as a well-known China blender motors manufacturers and custom custom juicer motors factory, our company has developed a lot on our technical strength and production capability. Now, our factory occupies an area of more than 8,000 square meters and employs more than 200 employees,The main product: washing machine motor, fan motor, air conditioner motor, cooler motor, axial fan motors, juicer and blender motor. Our company insists on the belief of "Good Quality, Definite Credit-Standing and Timely Innovation" and exerts ourselves to build the special culture and good public image of the enterprise. With advanced management idea, we updated the system, employed a lot of professional technologists, purchased advanced production equipment and expanded international market thus have made rapid progress. Our company has obtained the ISO9001 certificate. Our wholesale blender motors have got CE approval in Europe and CCC safety certificate in China. They are sold far to America, Japan, Korea, Australia, Hong Kong and the Middle East, enjoying high reputation among customers both at home and abroad.