CN101304187A - Stator line stick of gas turbine generator - Google Patents
Stator line stick of gas turbine generator Download PDFInfo
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- CN101304187A CN101304187A CNA2008100648837A CN200810064883A CN101304187A CN 101304187 A CN101304187 A CN 101304187A CN A2008100648837 A CNA2008100648837 A CN A2008100648837A CN 200810064883 A CN200810064883 A CN 200810064883A CN 101304187 A CN101304187 A CN 101304187A
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- lap
- line
- prevention belt
- resistance corona
- gas turbine
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- Insulation, Fastening Of Motor, Generator Windings (AREA)
Abstract
The invention relates to an insulation structure of a stator bar of a gas turbine generator, which comprises (1) a conductor equipotential layer structure, (2) a novel main insulation structure and (3) a novel end corona protection structure. A bar produced by the invention has the following main technical performance indexes: (1) under 0.2 Un of the normal state, tg Delta is less than 1 percent; (2) under the condition of 50kV for 30 seconds, the stator bar have no visible corona trace; (3) a finished bar has a breakdown strength which reaches 33kV/mm on average; (4) the bar endures an electrical aging test, the service life is more than 10 hours under 3.0 Un of the voltage and the service life is more than 1100 hours under 2.0 Un of the voltage. The insulation structure fills up the blank in china.
Description
Technical field:
The present invention relates to stator line stick of gas turbine generator.
Background technology:
Along with the reinforcement of people, and the fast development of combustion machine combined-cycle technology to ecological environmental protection consciousness, with its simplicity of design, operation and easy to maintenance be the emphasis that the gas turbine generator of characteristics becomes domestic electric power exploitation.The stator bar insulation thickness of the external unit of same type is thin, requirement on electric performance is high, the insulating Design field intensity is 3.047kV/mm, under these circumstances, my company has begun the production domesticization research to gas turbine generator (capacity is that 470MW, rated voltage are 19kV) stator bar insulation system.
Summary of the invention:
The objective of the invention is to make a kind of under the 19kV electric pressure stator line stick of gas turbine generator of good reliability, long service life.Technical scheme of the present invention is: a kind of stator line stick of gas turbine generator, after lead is hot-forming, from the conductor leptoprosopy mind-set two ends equidistant have reveal the copper point, dot spacing 80mm, last two reveal copper points apart from being not more than 30mm.The layer of even conductive paint is arranged on shaped conductors, and flat around one deck low-resistance corona-prevention belt; As main insulation, thickness is monolateral 3.6mm after the main insulation hot curing along at least 19 layers of the novel paulownia horse of conductive line surfaces half-lap epoxy glass mica paper tapes; At straight line position half-lap one deck low-resistance corona-prevention belt, this anticorona coating end arrives distance A=160mm unshakable in one's determination vertically; Resistance corona-prevention belt in the excellent surperficial half-lap along the line then, wrapping size B=70mm, high resistance corona-prevention belt in the excellent surperficial half-lap along the line, wrapping size C=70mm, the high resistance corona-prevention belt of excellent surperficial half-lap along the line, wrapping dimension D=180mm, then from the B initiating terminal make progress 50mmm begin to the terminal 50mm downwards of D only the novel paulownia horse of half-lap one deck epoxy glass mica paper tape as supplementary insulation, anticorona coating overlap distance E=50mm.
Technical characterstic of the present invention is:
(1) stator bar adopts equipotential layer structure
After lead was hot-forming, equidistant the repairing in mind-set two ends revealed the copper point from the conductor leptoprosopy, and even brushing one deck conductive paint holds corona-prevention belt then on shaped conductors, and the equipotential layer is promptly finished.
(2) novel Main Insulation Structure of Electric
Along at least 19 layers of the novel paulownia horse of conductive line surfaces half-lap epoxy glass mica paper tapes as main insulation.
(3) novel end anti dizzy structure
Straight line low-resistance corona-prevention layer adopts low-resistance corona-prevention belt, then resistance corona-prevention belt in the half-lap, in high resistance corona-prevention belt and high resistance corona-prevention belt, coil is brushed the high resistant anticorona varnish through hot-forming back in the end.
The stator line stick of gas turbine generator that adopts the present invention to produce, insulation thickness is thinned to 3.6mm, and puncture voltage is 6 times of rated voltage, and the work field intensity reaches the advanced international standard of 3.047kV/mm.The basic mechanical design feature index is as follows:
Tg δ is less than 1% under the 1 normality 0.2Un.
2 stator bars no visual corona vestige behind the 30s under 50kV.
The average disruptive field intensity of 3 product lines rod reaches 33kV/mm.
The anti-electrical ageing test of 4 lines rod, the 3.0Un following life-span of voltage is greater than 10h; 2.0Un the following life-span of voltage is greater than 1100h.
Every technical indicator of the present invention all reaches domestic and international advanced level, and various technologies are fit to vapour and send out the unit use, and the present invention is with a wide range of applications.Send out the insulating Design and the research of unit for other vapour and established solid foundation.
Description of drawings:
Fig. 1 is the anticorona structural representation in stator bar end
Embodiment:
As shown in Figure 1, the present invention is a stator line stick of gas turbine generator: after lead is hot-forming, from the conductor leptoprosopy mind-set two ends equidistant have reveal the copper point, dot spacing 80mm, last two reveal copper points apart from being not more than 30mm.The layer of even conductive paint is arranged on shaped conductors, and flat around one deck low-resistance corona-prevention belt; As main insulation, thickness is monolateral 3.6mm after the main insulation hot curing along at least 19 layers of the novel paulownia horse of conductive line surfaces half-lap epoxy glass mica paper tapes; At straight line position half-lap one deck low-resistance corona-prevention belt, this anticorona coating end arrives distance A=160mm unshakable in one's determination vertically; Resistance corona-prevention belt in the excellent surperficial half-lap along the line then, wrapping size B=70mm, high resistance corona-prevention belt in the excellent surperficial half-lap along the line, wrapping size C=70mm, the high resistance corona-prevention belt of excellent surperficial half-lap along the line, wrapping dimension D=180mm, then from the B initiating terminal make progress 50mmm begin to the terminal 50mm downwards of D only the novel paulownia horse of half-lap one deck epoxy glass mica paper tape as supplementary insulation, anticorona coating overlap distance E=50mm.
Coil is brushed the high resistant anticorona varnish after hot-forming, room temperature is dried and got final product in 24 hours.
Claims (2)
1, a kind of stator line stick of gas turbine generator is characterized in that: after lead is hot-forming, from the conductor leptoprosopy mind-set two ends equidistant have reveal the copper point, dot spacing 80mm, last two reveal copper points apart from being not more than 30mm.The layer of even conductive paint is arranged on shaped conductors, and flat around one deck low-resistance corona-prevention belt; As main insulation, thickness is monolateral 3.6mm after the main insulation hot curing along at least 19 layers of the novel paulownia horse of conductive line surfaces half-lap epoxy glass mica paper tapes; At straight line position half-lap one deck low-resistance corona-prevention belt, this anticorona coating end arrives distance A=160mm unshakable in one's determination vertically; Resistance corona-prevention belt in the excellent surperficial half-lap along the line then, wrapping size B=70mm, high resistance corona-prevention belt in the excellent surperficial half-lap along the line, wrapping size C=70mm, the high resistance corona-prevention belt of excellent surperficial half-lap along the line, wrapping dimension D=180mm, then from the B initiating terminal make progress 50mmm begin to the terminal 50mm downwards of D only the novel paulownia horse of half-lap one deck epoxy glass mica paper tape as supplementary insulation, anticorona coating overlap distance E=50mm.
2, a kind of stator line stick of gas turbine generator according to claim 1 is characterized in that: there is the high resistant anticorona varnish on the end winding surface after hot-forming.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100648837A CN101304187B (en) | 2008-07-08 | 2008-07-08 | Stator line stick of gas turbine generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100648837A CN101304187B (en) | 2008-07-08 | 2008-07-08 | Stator line stick of gas turbine generator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101304187A true CN101304187A (en) | 2008-11-12 |
| CN101304187B CN101304187B (en) | 2010-06-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008100648837A Expired - Fee Related CN101304187B (en) | 2008-07-08 | 2008-07-08 | Stator line stick of gas turbine generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101304187B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101594032B (en) * | 2009-05-19 | 2011-04-06 | 山东齐鲁电机制造有限公司 | Straight line solidification process for large-capacity air-cooled turbogenerator stator bars |
| CN103904806A (en) * | 2012-12-25 | 2014-07-02 | 中国长江动力集团有限公司 | 15.75 kV grade generator stator multi-gel mold pressing thinning optimization structure |
| CN116581916A (en) * | 2023-05-22 | 2023-08-11 | 上海品星防爆电机有限公司 | High-temperature-resistant stator winding structure and production process |
| CN116683682A (en) * | 2023-07-27 | 2023-09-01 | 北京金风科创风电设备有限公司 | Stator, generator, wind generating set and encapsulation method |
-
2008
- 2008-07-08 CN CN2008100648837A patent/CN101304187B/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101594032B (en) * | 2009-05-19 | 2011-04-06 | 山东齐鲁电机制造有限公司 | Straight line solidification process for large-capacity air-cooled turbogenerator stator bars |
| CN103904806A (en) * | 2012-12-25 | 2014-07-02 | 中国长江动力集团有限公司 | 15.75 kV grade generator stator multi-gel mold pressing thinning optimization structure |
| CN116581916A (en) * | 2023-05-22 | 2023-08-11 | 上海品星防爆电机有限公司 | High-temperature-resistant stator winding structure and production process |
| CN116581916B (en) * | 2023-05-22 | 2024-04-30 | 上海品星防爆电机有限公司 | High-temperature-resistant stator winding structure and production process |
| CN116683682A (en) * | 2023-07-27 | 2023-09-01 | 北京金风科创风电设备有限公司 | Stator, generator, wind generating set and encapsulation method |
| CN116683682B (en) * | 2023-07-27 | 2024-02-23 | 北京金风科创风电设备有限公司 | Stator, generator, wind generating set and encapsulation method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101304187B (en) | 2010-06-09 |
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| C06 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: CHINA THREE GORGES CORPORATION Effective date: 20131218 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| C53 | Correction of patent of invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Wang Guohai Inventor after: Liang Hongtao Inventor after: Li Xiangwei Inventor after: Tan Guowei Inventor after: Hu Chunxiu Inventor after: Zhang Yang Inventor after: Miao Wanguo Inventor after: Hector Inventor after: Yuan Xiaohong Inventor after: Suiyinde Inventor after: Yang Zhenzhu Inventor after: Shi Xiaofeng Inventor after: Liu Hongwei Inventor after: Yang Tao Inventor after: Jian Wei Jiao Inventor before: Hector Inventor before: Li Xiangwei Inventor before: Tan Guowei Inventor before: Hu Chunxiu Inventor before: Zhang Yang Inventor before: Miao Wanguo Inventor before: Yuan Xiaohong Inventor before: Suiyinde Inventor before: Yang Zhenzhu Inventor before: Shi Xiaofeng Inventor before: Liu Hongwei Inventor before: Yang Tao Inventor before: Jian Wei Jiao Inventor before: Liang Hongtao |
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| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: HAO SHEN YUAN XIAOHONG SUI YINDE YANG ZHENZHU SHI XIAOFENG LIU HONGWEI YANG TAO JIAO JIANWEI LIANG HONGTAO LI XIANGWEI TAN GUOWEI HU CHUNXIU ZHANG YANG MIAO WANGUO TO: WANG GUOHAI HAO SHEN YUAN XIAOHONG SUI YINDE YANG ZHENZHU SHI XIAOFENG LIU HONGWEI YANG TAO JIAO JIANWEI LIANG HONGTAO LI XIANGWEI TAN GUOWEI HU CHUNXIU ZHANG YANG MIAO WANGUO |
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| TR01 | Transfer of patent right |
Effective date of registration: 20131218 Address after: 150040 Harbin Motor Factory No. three, 99 power road, Harbin Power District, Heilongjiang, China Patentee after: HARBIN ELECTRIC MACHINERY Co.,Ltd. Patentee after: CHINA THREE GORGES Corp. Address before: 150040 Harbin Motor Factory No. three, 99 power road, Harbin Power District, Heilongjiang, China Patentee before: HARBIN ELECTRIC MACHINERY Co.,Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100609 |
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| CF01 | Termination of patent right due to non-payment of annual fee |