Brief Introduction of Nomex Insulation Paper(NMN)
Nomex insulation paper, it is characterized by good heat resistance and high strength. At a temperature of 250°C, the material properties can remain stable for a long time. Its acupuncture products are mainly used as high-temperature filter materials and insulating materials. Wherever electrical insulation is required, you can usually see NOMEX products. It has a unique and appropriate balance of performance. For many years, it has been widely used in transformers, motors, generators and other electrical equipment to improve electrical insulation reliability.
Main features of the Nomex insulation paper
he unique combination of performance makes NOMEX products have excellent characteristics:
Nomex insulation paper(NMN) is a synthetic aromatic amide polymer with the following excellent characteristics:
1, Intrinsic dielectric strength
The calendered NOMEX can withstand short-term voltage field strength of 18～40KV/mm, without further treatment with varnish and resin
Due to the low dielectric constant of Nomex insulation paper(NMN) , the electric field distribution between the insulating and cooling medium is more uniform
2, Mechanical toughness
The product has very high strength, good elasticity, tear resistance and abrasion resistance, and the thinner product is flexible;
3, Thermal stability
4, The product has the approval of UL material temperature class 220°C, which means that it can maintain effective performance for more than 10 years even if it is continuously placed at 220°C;
It is basically not affected by most solvents, and is very resistant to acid and alkali corrosion. It is also compatible with all varnishes, adhesives, transformer fluids, lubricating oils and cooling agents. In addition, NOMEX; will not be destroyed by insects, fungi and molds
5, Low temperature performance
At the boiling point of nitrogen (77K), the tensile strength of NOMEX insulating paper exceed the strength value at room temperature;
6, Insensitive to moisture
When the relative humidity is 95%, its dielectric strength is 90% of that in a completely dry state. At the same time, many mechanical properties are actually improved;
7, Radiation resistant
Even if the intensity of ionizing radiation reaches 800 Mrads (8 Mgrays), NOMEX® products are basically unaffected, and they still maintain their mechanical and electrical properties after 8 times of radiation of this dose
Application of the
Nomex insulation paperNOMEX products can be used in various types of transformers (including open ventilated dry type, cast coil type and liquid-filled type): wire winding, layer isolation edge, section and box insulation, winding end packing, isolation Plates and spacers, etc. In open ventilated dry type (OVDT) transformers, the design of this type of transformer can be greatly improved, reducing power loss, improving standby capacity, increasing safety and reliability, and reducing the amount of steel used in conductors and cores, thereby reducing size and reducing cost
Nomex insulation paper is widely used in motors and generators, for slot wedge insulation, phase insulation, end laminates, etc. Make all kinds of rotating equipment (AC and DC motors, random coils and die wire windings, and even large steam turbine generators) better heat insulation, better mechanical properties, higher safety, and longer service life.
As a professional insulation material manufacturer,
YAAN specializes in manufacturing electrical insulation materials for almost 34 years.
Yanan provide the most complete
nomex insulation paper to the worldwide customers
