What is NHN insulation paper?

NHN insulation paper is a high-performance composite insulation material widely used in power transformers, motors, generators and other electrical equipment.

Composition structure of NHN insulation paper

"NHN" represents its structural composition: two layers of Nomex paper with a layer of polyimide film in the middle. This unique structure gives NHN insulation paper excellent electrical properties, heat resistance and mechanical strength, making it an ideal choice for high-end electrical insulation.

Polyimide film: As the middle layer, polyimide film has extremely high heat resistance and chemical stability. It can maintain the integrity and performance of the material in a high temperature environment, thereby ensuring the reliability of the insulating paper in long-term work.

Nomex paper: Nomex paper is an aromatic polyamide fiber paper produced by DuPont in the United States, which has excellent fire resistance, high temperature resistance and arc resistance. It is used as the double-sided covering material of NHN insulation paper, further enhancing the mechanical strength and electrical insulation performance of the insulation paper.

Performance characteristics of NHN insulation paper

Excellent mechanical properties: NHN insulation paper has good tensile strength and edge tear resistance. This allows it to withstand greater mechanical stress during processing and use, and is not easily damaged or torn.

Good electrical strength: NHN insulation paper has high electrical insulation performance and can withstand higher voltages without breakdown or leakage. This feature ensures the safety and reliability of electrical equipment during operation.

High heat resistance: NHN insulation paper has a heat resistance grade of H (180°C), which enables it to maintain good insulation performance and mechanical strength in high temperature environments. This feature makes NHN insulation paper particularly suitable for slot-to-slot, slot-cover and phase-to-phase insulation of high heat-resistant motors.

Application of NHN insulation paper

Motor insulation: NHN insulation paper is mainly used for slot-to-slot, slot-cover and phase-to-phase insulation of high heat-resistant motors. It can withstand high temperatures and mechanical stresses during motor operation to ensure the normal operation and safety of the motor.

Transformer insulation: In transformers, NHN insulation paper can be used as interlayer insulation material. It can effectively isolate windings of different voltage levels to prevent electrical breakdown and leakage.

Insulation of other electrical equipment: NHN insulation paper can also be used in the insulation structure of other electrical equipment, such as capacitors, reactors, etc. It can provide reliable electrical insulation and mechanical support to ensure the normal operation and safety of electrical equipment.

Storage recommendations

1. Store in a dry and clean room at room temperature.

2. Keep away from fire, heating and direct sunlight.

3.The storage period is generally 12 months. If the storage period is exceeded, technical standard inspection is required. If qualified, it can still be used.

NHN insulation paper is a high-performance composite insulation material. With its excellent heat resistance, electrical properties, mechanical strength, etc., it is widely used in power transformers, motors, generators, and new energy fields. With the advancement of technology and the development of the market, NHN insulation paper will play a more important role in the future, providing strong support for the stable operation and efficient development of electrical equipment.