lkpjewel.blogg.se

When the relative humidity is 90%, the dielectric strength of insulating paper is 80% of that of completely dry paper, and many mechanical properties are improved.Įven with ionizing radiation of up to 800 megs of electrons, insulating paper is basically unaffected and retains its mechanical and electrical properties after eight radiations.After a motor is rewound, the windings must be further insulated with resin or varnish. In addition, insulating paper will not be damaged by insects, fungi and molds Īt the nitrogen boiling point (77K), the tensile strength of insulation paper T410, 993 and 994 type laminates exceeds the strength value at room temperature. It is suitable for all varnishes, adhesives, transformer oils, lubricants and freezers. This kind of insulating paper for motor winding is basically not affected by solvents, and very resistant to acid and alkali corrosion. Insulation paper for motor winding can maintain effective performance for more than 10 years even if placed continuously at 220℃ Due to the low dielectric constant of the product, the electric field distribution between insulating medium and cooling medium is more even.Īfter the pressing process, the strength of the insulating paper will become relatively high, and its elasticity, tear resistance and wear resistance are better

Motor insulation paper can withstand 15 to 35KV/mm short-time voltage field strength, it doesn’t need to use varnish and resin.

NMN insulating paper is mainly used for the insulation between the slot, slot cover and phase of low-voltage motor, but also can be used for the insulation between transformers and other electrical appliances.įeatures of insulation paper for motor winding: When using automatic winding machine in low-voltage motor production, there will be no fault. The surface of NMN insulation paper is smooth. It has good mechanical properties, such as high tensile strength, edge tear resistance and good electrical strength. NMN insulating paper is a soft composite material consisting of an intermediate layer of polyester film and Nomex paper on both sides, with heat resistance grade F (155℃). Today we'll see if insulation paper for motor winding can withstand voltage. In addition to their good insulation and mechanical strength, they also have their own characteristics.

Insulation paper for motor winding is a general term for electrical insulating paper, which is used as an insulating material for electrical equipment such as cables and coils.