CN201466838U

CN201466838U - Insulating structure for wind-driven generator

Info

Publication number: CN201466838U
Application number: CN2009200830100U
Authority: CN
Inventors: 邓凤舞; 张修兵
Original assignee: Sichuan Dongfeng Electric Machinery Works Co Ltd
Current assignee: DEC Dongfeng Electric Machinery Co., Ltd.
Priority date: 2009-07-31
Filing date: 2009-07-31
Publication date: 2010-05-12
Anticipated expiration: 2019-07-31

Abstract

The utility model discloses an insulating structure for a wind-driven generator. The outside of a stator coil mica tape wrapped rectangular copper wire (1) is firstly half-wrapped with two layers and then is flatly-wrapped with a layer of poor-adhesive mica tape (2) reinforced by glass cloth; the straight line part of the stator coil mica tape wrapped rectangular copper wire (1) is flatly-wrapped with insulating paper (3); and the outside of a rotor copper busbar (4) is firstly half-wrapped with a layer of poor-adhesive mica tape (5) reinforced by a polyimide film and then is half-wrapped with two layers of anticorona poor-adhesive mica tapes (6). The insulating structure improves the ageing resistance and corrosion resistance of the wind-driven generator, endows the wind-driven generator with better property, more reliable structure, more stable running and longer service life, and solves the problem of difficulties in the examination, repair, maintenance and the like of the wind-driven generator.

Description

The insulation system that a kind of wind-driven generator uses

Technical field

The utility model relates to the insulation system that a kind of generator uses, and particularly relates to the insulation system that uses on a kind of wind-driven generator.

Background technology

Wind energy obtains the whole world national governments and the people's attention at present as a kind of cleaning and the reproducible energy.But wind-driven generator is installed on nearly hundred meters high-altitudes of wind field, and the wind field environment is abominable as dust storm big, ultraviolet ray is strong, so just the maintenance of wind-driven generator, safeguard and become the difficult problem that wind-powered electricity generation exploitation faces.

The utility model content

The purpose of this utility model is to overcome the deficiency of existing wind-driven generator insulation system at aspects such as anticorrosive and stable, useful lifes, and the insulation system that uses on a kind of wind-driven generator is provided.This insulation system is anti-aging, anticorrosive, stable, function admirable, long service life.

For realizing that the technical scheme that the purpose of this utility model adopted is: the insulation system that a kind of wind-driven generator uses, two-layer and then the flat low resin mica tape that wraps the reinforcement of one deck glass cloth at the outer first half-stack package of the wrapped flat type copper wire of stator coil mica tape, the flat bag of straight line portion insulating paper; At the low resin mica tape of the outer first half-stack package one deck polyimide film of rotor coil copper busbar reinforcement, and then the two-layer anticorona low resin mica tape of half-stack package.

Through stator and the rotor after the above-mentioned processing, the whole dipping lacquer of difference VPI (Vacuum Pressure Impregnated, vacuum pressure impregnation) behind the rule.The whole dipping lacquer of VPI makes that motor performance is better, structure is more reliable, more stable, the long service life of operation.Solve wind-driven generator and be installed on nearly hundred meters high-altitudes of wind field, be used in the different wind fields of various environmental conditions, the maintenance that is brought, maintenance problems.The used low resin mica tape of generator coil must have compatibility with insulating varnish.The key property of few adhesive tape is that gel content is few, easily infiltration in the immersing glue process, it is better that impregnation is handled the back integraty, reach higher dielectric strength with thin insulation thickness, this wind-driven generator adopts with few glue cloud bar of glass cloth reinforcement with the low resin mica tape of polyimide film reinforcement, efficiently solve the turn-to-turn insulation shock problem, improved corona resisting characteristics.

The beneficial effects of the utility model are: anti-aging, the corrosion resistance that have improved wind-driven generator, make more excellent performance, the structure of wind-driven generator more reliable, more stable, the longer service life of operation, solved the difficult problems such as maintenance, maintenance of wind-driven generator.

Description of drawings

The structural representation of Fig. 1 stator coil

The structural representation of Fig. 2 rotor coil

Among the figure, 1-flat type copper wire, the low resin mica tape of 2-glass cloth reinforcement, 3-insulating paper, 4-copper busbar, the low resin mica tape of 5-polyimide film reinforcement, the anticorona low resin mica tape of 6-.

Embodiment

Further describe the technical solution of the utility model below in conjunction with accompanying drawing, as Fig. 1, the insulation system that a kind of wind-driven generator uses, two-layer and then the flat low resin mica tape 2 that wraps the reinforcement of one deck glass cloth of first half-stack package outside the wrapped flat type copper wire 1 of stator coil mica tape, the flat bag of straight line portion insulating paper 3; As Fig. 2, the low resin mica tape 5 of first half-stack package one deck polyimide film reinforcement outside rotor coil copper busbar 4, and then the insulating barrier dielectric strength of two-layer anticorona low resin mica tape 6. these schemes of half-stack package is 15KV, and hot dielectric loss≤15% has effectively satisfied the insulating requirements of wind-driven generator.

Claims

1. the insulation system that wind-driven generator uses is characterized in that: the two-layer and then flat low resin mica tape (2) that wraps the reinforcement of one deck glass cloth of first half-stack package outside the wrapped flat type copper wire of stator coil mica tape (1), the flat bag of straight line portion insulating paper (3); The low resin mica tape (5) of first half-stack package one deck polyimide film reinforcement outside rotor coil copper busbar (4), and then the two-layer anticorona low resin mica tape of half-stack package (6).