Introduction of Motor Insulation Materials

The main function of the motor insulation material is to isolate the conductors of different parts in the electrical equipment so that the current can flow in a predetermined direction. Motor insulation materials are the weakest link in electrical equipment. Many faults occur in the green part. Therefore, the insulation materials should have good dielectric properties, high insulation resistance and compressive strength, and heat resistance should not be caused by long Caused by heat. Can change good moisture resistance, lightning protection, high mechanical strength, and easy processing.
Motor Insulation Materials
In the long-term use of motor insulation material , under the effects of temperature, electrical, mechanical and other aspects, the green insulation performance will gradually deteriorate, which is called insulation aging. Temperature has a great influence on the service life of insulation materials and insulation aging. Therefore, in order to ensure the long-term safe operation of electrical equipment, the heat resistance level and the maximum operating temperature of insulation materials are clearly specified. If the operating temperature of electrical equipment exceeds the limit operating temperature of the insulation material used, the service life of the insulation material will be shortened. Generally, the service life of the motor insulation material will be shortened by about half every 6 ° C.
The motor insulation material commonly used in motors can be divided into gas, liquid and solid according to their physical status. Gas insulation materials such as air, nitrogen, carbon dioxide, sulfur hexafluoride and other liquid insulation materials such as mineral oil such as transformer oil, capacitor oil, cable oil, and synthetic oil such as silicone oil and triphenyl biphenyl. , Can be divided into 6 categories. In order to fully reflect the type, variety and heat resistance level of solid insulation materials, 4-digit numbers are used for solid insulation materials
Kraft insulation paper
To indicate the model, there are many different varieties of similar motor insulation material , such as 0, which means dipping paint, 2 means covering paint, 3 means enamel paint, 4 means viscose paint, 6 means silicon steel sheet paint, 8 means glue. For another example, in the second category, .0.1, 2 represents cotton fiber cloth, 4.5 represents glass fiber cloth, 6 represents semiconductor varnished cloth and adhesive tape, 7 represents insulating tube, 8 represents film, and 9 represents insulating film product. For example, 1031 is a base phenol leather alkyd paint, which belongs to class B 1032 is three
Polyamine toxic acid paint. The motor insulation material  polyamine toxic acid paint belongs to class B. Because there are many types of mica, some other mica products other than muscovite must be followed by 4 digits, 1 for powder mica products and 2 for phlogopite products. E.g. 5438-1 is epoxy glass jar powder mica tape, and 5450-1 is silicone glass mica tape.

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