Anti-corona special enameled wire for wind power generation and production method

[0013] The present invention will be further described below in conjunction with the drawings and embodiments, but it is not a basis for limiting the present invention.

[0014] Examples. Anti-corona special enameled wire for wind power generation, composed as figure 1 As shown, it includes a round copper wire 1. The surface of the round copper wire 1 is successively provided with a polyester imine paint layer 2, a corona-resistant paint layer 3, and a polyamide-imide paint layer from inside to outside. Thickness of paint layer 2: thickness of corona-resistant paint layer 3: thickness of polyamide-imide paint layer=4:4:2.

[0015] The total thickness of the polyester-imine paint layer 2, the corona-resistant paint layer 3 and the polyamide-imide paint layer is 0.067mm-0.072mm.

[0016] According to the aforementioned production method of anti-corona special enameled wire for wind power generation, it is characterized in that: the copper round wire is annealed, and then three kinds of paint layers are applied, namely polyester imine paint as the bottom layer and corona resistant paint layer The middle layer and polyamide-imide paint are the surface layer, bottom layer: middle layer: surface layer = 4:4:2, and finally baking and lubrication treatment. The thickness of the three paint layers is 0.067mm-0.072mm.

[0017] Preferably, the corona-resistant paint layer 3 uses A981-M-30TAN corona-resistant paint from ALTS. The polyamide-imide paint layer is also made by ALTS Company, which can better adhere to the corona-resistant paint layer and has better flexibility.

[0018] The present invention forms a composite insulating layer by sequentially arranging a polyester-imide paint layer, a corona-resistant paint layer and a polyamide-imide paint layer on the surface of the copper round wire from the inside to the outside, while limiting the ratio of the mutual paint layers , It has good adhesion, good flexibility, high breakdown voltage, excellent anti-corona performance, and excellent chemical performance. It greatly reduces the maintenance cost of wind turbines and prolongs the working life of wind turbines. It is for high-power wind power generation. The large-scale use of the unit provides a good quality assurance. The invention also limits the total thickness of the polyester imine paint layer, the corona-resistant paint layer and the polyamide-imide paint layer, so as to reduce the material cost as much as possible while ensuring excellent performance.