Application of DMD insulation material in motor

DMD is a high temperature laminated insulation material, composed by two layers of non woven polyester and one central layer of polyester. The temperature resistance grade is F, that is, 155℃. The executive standard for ‌DMD insulation paper is JB/T 4060-1991 and the product color is usually white. Its thickness is between 0.10mm and 0.50mm and its width is between 980mm and 990mm.

What are features of DMD?

1. Excellent insulation performance: DMD insulation paper has good electrical insulation performance, which can effectively isolate the conductive part of electrical equipment to prevent leakage or breakdown.

2. Chemical corrosion resistance: DMD insulation paper has good chemical resistance and can maintain stable performance in a certain corrosive medium.

3. Good mechanical strength: DMD insulation paper has good mechanical strength and wear resistance and can withstand certain mechanical stress and wear.

4. High temperature resistance: DMD insulation paper has high temperature resistance. It usually can withstand temperatures above 130 ° C and is suitable for electrical equipment in high temperature environment.

Application of DMD insulation material in motor

Slot insulation

DMD insulation materials are often used for groove insulation of motors, especially in situations where high dielectric strength and heat resistance are required. It can effectively prevent the current from flowing from one coil to another coil and avoid the occurrence of short circuit faults.

Interturn insulation

In the winding of the motor, DMD insulation material is also often used as interturn insulation. It can ensure the electrical isolation between each turn coil, prevent current leakage and short circuit between turns, thus protecting the motor winding from damage.

Gasket insulation

DMD insulation materials can also be used as motor gasket insulation, such as end cover gasket, bearing gasket, etc. These gaskets ensure electrical isolation and mechanical support between the internal components of the motor, improving the overall stability and reliability of the motor.

Interlayer isolation

In the multi-layer windings of the motor, DMD insulation material is also used as interlayer insulation to ensure electrical isolation and heat resistance between the various layers of windings.

Other applications

In addition to the above applications, DMD insulation materials can also be used for lead line insulation, terminal board insulation and other parts of the motor, as well as as a separation and support material inside the motor to improve the stability and reliability of the overall structure.

Application advantages of DMD insulation materials

Excellent electrical properties

DMD insulation material has good dielectric strength and electrical insulation performance, which can ensure the safe operation of the motor in high pressure and high temperature environment.

High temperature resistance

DMD insulation material has high heat resistance and can withstand the high temperature generated during the operation of the motor, thus extending the service life of the motor.

Good mechanical strength

The DMD insulation material has high mechanical strength and can withstand the mechanical stress and vibration inside the motor to ensure the stable operation of the motor.

Easy to process and form

DMD insulation material has good processing and forming properties, and can be cut, bent and pasted according to the different needs of the motor to meet the manufacturing requirements of the motor.