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

A production method and enameled wire technology, applied in power cables, circuits, insulated cables, etc., can solve problems such as poor anti-corona performance, low breakdown voltage, poor adhesion, and poor flexibility, and achieve excellent anti-corona performance, Good chemical properties, high breakdown voltage effect

Inactive Publication Date: 2014-11-26
ZHEJIANG GREATWALL ELECTRIC SCI & TECH
6 Cites 1 Cited by

AI-Extracted Technical Summary

Problems solved by technology

Since enameled wires for wind turbines are mainly suitable for wind power generation equipment exposed to oil pollution, seawater corrosion, high temperature and salt, and high altitudes, wind turbines have special requirements fo...
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Method used

The present invention is provided with polyesterimide varnish layer, corona-resistant varnish layer and polyamideimide varnish layer successively to form composite insulating layer by the surface of round copper wire from inside to outside, while limiting the mutual lacquer layer The proportion between them makes it have adhesion, good flexibility, high breakdown voltage, excellent anti-corona performance, and excellent chemical properties, which greatly reduces the maintenance cost of wind turbines and prolongs the working life of wind turbines. Large-scale use of high-po...
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Abstract

The invention discloses a 200-level anti-pulse voltage composite enameled wire which comprises round copper wires (2). The surfaces of the round copper wires (2) are provided with a variable frequency paint layer (3) and a polyamide imide paint layer (1) in sequence from inside to outside, wherein the variable frequency paint layer (3) includes eight polyester imide paint layers, and the thickness of each polyester imide paint layer is 0.005 [mu]m. The 200-level anti-pulse voltage composite enameled wire in the invention has good corona-resistant performance, thereby prolonging the service life of a variable frequency motor.

Application Domain

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

Examples

  • Experimental program(1)

Example Embodiment

[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.
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PUM

PropertyMeasurementUnit
Thickness0.067 ~ 0.072mm
tensileMPa
Particle sizePa
strength10

Description & Claims & Application Information

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