electric machinery The insulation grade refers to the heat resistance grade of the insulating material used, which is divided into A, E, B, F and H. The allowable temperature rise refers to the temperature limit of the motor compared with the ambient temperature.

Temperature rise refers to the value that the temperature of the stator winding is higher than the ambient temperature under the rated operating conditions of the motor (the ambient temperature is specified as 35 ℃ or below, and 40 ℃ if no specific value is indicated on the nameplate).

In hair motor Insulation material is the weakest link in electrical equipment such as. Insulating materials are particularly vulnerable to high temperature, accelerated aging and damage. Different insulating materials have different heat resistance, and electrical equipment with different insulating materials have different high temperature resistance. Therefore, the maximum operating temperature of general electrical equipment is specified.

According to the high temperature resistance of different insulating materials, seven allowable maximum temperatures are specified: Y A、E、B、F、H、c， Their allowable operating temperatures are 90, 105, 120, 130, 155, 180 and above 180 ℃ respectively. Therefore, Class B insulation indicates that the insulation heat resistance temperature of hair motor is 130 ℃. Users should ensure hair The insulation material of the motor shall not exceed this temperature when the hair motor is working to ensure the normal operation of the hair motor.

The insulating materials with insulation class B are mainly made of mica, asbestos and glass fiber by bonding or dipping with organic glue.

The above information is provided by Bolaite screw air compressor I hope it can help you!