H Class Insulation Paper-6650NHN composite paper

Insulation paper is a small but critical insulation material in motor products. It is used for slot insulation, inter...

Insulation paper is a small but critical insulation material in motor products. It is used for slot insulation, interlayer insulation of windings, and phase insulation of three-phase motors. Motors with different heat resistance levels should use different insulation papers. Commonly used composite insulation papers include DMD, NMN, NHN, etc.

For insulation materials, they should have high toughness, excellent dielectric properties, high thermal conductivity, easy insertion, certain hardness, resilience, and suitable heat resistance. Different use environments have different requirements for insulation materials. For corrosive environmental conditions, the corresponding insulation materials must have a certain degree of corrosion resistance.

NHN insulation paper (H-class insulation). It is a soft composite material composed of a middle layer of polyimide film and Nomex paper on both sides, with a heat resistance grade of H (180℃). It has good mechanical properties, such as tensile strength and edge tear resistance, as well as good electrical strength. Its surface is smooth, which can ensure trouble-free when using automatic offline machines to produce low-voltage motors. NHN is mainly used for slots, slot covers and phase insulation of high heat-resistant motors. In addition, it can also be used as interlayer insulation for transformers or other electrical appliances.

In actual use, efforts should be made to keep the original state of the insulating material, and no wrinkles, delamination, blistering and other phenomena that affect the insulation performance should occur. Good insulating materials can effectively increase the service life of the motor. On the contrary, insulating materials that do not meet the requirements will greatly reduce the life of the motor. Insulating paper is a general term for electrical insulating paper. It is used as an insulating material for various electrical equipment such as cables and coils. In addition to having good insulation properties and mechanical strength, each has its own characteristics.