CN105301455A - All-weather large-scale turbonator stator winding corona accurate positioning method - Google Patents
All-weather large-scale turbonator stator winding corona accurate positioning method Download PDFInfo
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- CN105301455A CN105301455A CN201510740437.3A CN201510740437A CN105301455A CN 105301455 A CN105301455 A CN 105301455A CN 201510740437 A CN201510740437 A CN 201510740437A CN 105301455 A CN105301455 A CN 105301455A
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Abstract
The invention provides an all-weather large-scale turbonator stator winding corona accurate positioning method, which is characterized by comprising steps of setting a gain of an UV detector as an appropriate value, arranging the UV detector at the position which is 3-4 meter away from the terminal part of the stator winding, observing the number of background quantum photons of the stator winding to be tested through the UV detector before voltage boosting of the stator winding, wherein the number of the background quantum photons is not greater than 100, executing rated wire voltage on the stator winding to be tested, observing the number of the corona quantum photons of the winding to be tested by the UV detector, and, meanwhile, clearly shooting and accurately positioning the corona. The invention discloses the all-weather large-scale turbonator generator stator winding corona accuracy positioning method, which is high in positioning accuracy, simple and efficient, direct and vivid, safe and convenient and does not affect the running of the device. The invention is applicable to the corona observation on the large scale generator stator winding, and is accurate, safe, simple, efficient and time saving.
Description
Technical field
The present invention relates to a kind of round-the-clock under the large turbo-type generator stator winding corona accurate positioning method of carrying out.
Background technology
Along with the development of science and technology, one of problem that the production of generator and having manufactured is paid close attention in commercial production the most, in the production of turbodynamo, generator unit stator winding is the heart of turbodynamo.In stator built-in line process, inner coil rule terminates and stator always dry after all need to carry out discharge inception test, discharge inception test is generally carried out in winding AC voltage withstand test process.
If when existing darkroom ocular estimate is carried out by day, must by generator unit stator vapour, encourage end set up with large cloth bag, formation people is darkroom.Because generator unit stator is larger, cloth bag is easily local damage often, can not seal completely, and local light can impact observed result.There is following defect in generator unit stator complete machine corona test darkroom ocular estimate: 1) must test in dark ambient conditions; 2) overlap cloth bag workload large, bother very much; 3) cloth bag easily damages; 4) need be whether qualified with tester's micro-judgment with ocular estimate observation; 5) testing crew is observed in cloth bag, narrow space, dangerous; 6) can only qualitatively judge corona.
In a word, not only time-consuming by the method for naked-eye observation corona, and dangerous.
Summary of the invention
The object of this invention is to provide and a kind ofly under round-the-clock, do not rely on the method that naked eyes accurately locate corona.
In order to achieve the above object, technical scheme of the present invention there is provided a kind of round-the-clock large turbo-type generator stator winding corona accurate positioning method, and its feature comprises the following steps:
Step 1, by the gain of Ultraviolet Detector arrange to desired value, and Ultraviolet Detector is arranged in distance stator winding end 3 ~ 4 meters of;
Step 2, before stator winding up voltage, observed the bias light subnumber of tested stator winding by Ultraviolet Detector, its bias light subnumber can not be greater than 100;
Step 3, rated line voltage is applied to tested stator winding, observes the corona photon number of tested winding with Ultraviolet Detector, simultaneously to corona position take pictures clear, accurately locate.
The invention provides and round-the-clockly carry out large turbo-type generator stator winding corona accurate positioning method, it has accurate location, simple efficient, visual pattern, and do not affect the plurality of advantages of equipment operation, safe ready, be particularly suitable for carrying out corona observation on Generator Stator winding, can accomplish accurately, safely, simply, effectively, save time.
Embodiment
For making the present invention become apparent, be hereby described in detail below with preferred embodiment.
The invention provides a kind of round-the-clock large turbo-type generator stator winding corona accurate positioning method, the steps include:
Step 1, the gain of Ultraviolet Detector is set to 100, and Ultraviolet Detector is arranged in distance stator winding end 3 ~ 4 meters of;
Step 2, before stator winding up voltage, observed the bias light subnumber of tested stator winding by Ultraviolet Detector, its bias light subnumber can not be greater than 100;
Step 3,1.0 times of rated line voltages are applied to tested stator winding, observe the corona photon number of tested winding with Ultraviolet Detector, simultaneously to corona position take pictures clear, accurately locate.
The corona photon number observed by method provided by the invention answers≤2000.
The present invention adopts Ultraviolet Detector, carries out round-the-clock lower discharge inception test to Generator Stator winding, and under the gain and measuring distance of regulation, observe corona photon number, line item of going forward side by side is located, and judges whether discharge inception test meets the requirements.
Claims (1)
1. a round-the-clock large turbo-type generator stator winding corona accurate positioning method, is characterized in that, comprise the following steps:
Step 1, by the gain of Ultraviolet Detector arrange to desired value, and Ultraviolet Detector is arranged in distance stator winding end 3 ~ 4 meters of;
Step 2, before stator winding up voltage, observed the bias light subnumber of tested stator winding by Ultraviolet Detector, its bias light subnumber can not be greater than 100;
Step 3, rated line voltage is applied to tested stator winding, observes the corona photon number of tested winding with Ultraviolet Detector, simultaneously to corona position take pictures clear, accurately locate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510740437.3A CN105301455A (en) | 2015-11-04 | 2015-11-04 | All-weather large-scale turbonator stator winding corona accurate positioning method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510740437.3A CN105301455A (en) | 2015-11-04 | 2015-11-04 | All-weather large-scale turbonator stator winding corona accurate positioning method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105301455A true CN105301455A (en) | 2016-02-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510740437.3A Pending CN105301455A (en) | 2015-11-04 | 2015-11-04 | All-weather large-scale turbonator stator winding corona accurate positioning method |
Country Status (1)
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| CN (1) | CN105301455A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106646159A (en) * | 2016-12-12 | 2017-05-10 | 华北电力科学研究院有限责任公司 | Generator stator end winding corona detection method and device |
| CN111596187A (en) * | 2020-06-28 | 2020-08-28 | 云南电力技术有限责任公司 | Practical generator stator winding end corona detection method |
| CN113514740A (en) * | 2021-07-09 | 2021-10-19 | 哈尔滨理工大学 | Space positioning method for corona of generator stator winding |
Citations (5)
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| US6104297A (en) * | 1999-01-20 | 2000-08-15 | Danilychev; Vladimir A. | Corona discharge detection system |
| CN102540025A (en) * | 2011-12-30 | 2012-07-04 | 武汉市兑尔科技有限公司 | Ultraviolet photon counting method based on width ratio module |
| KR101358086B1 (en) * | 2013-08-19 | 2014-02-12 | 한국 전기안전공사 | Apparatus for detecting discharge uv on power facility using ar coating of optic lens |
| CN103675626A (en) * | 2013-12-25 | 2014-03-26 | 深圳市同步银星电气有限公司 | Photonic positioning ultraviolet detection method |
| CN104280670A (en) * | 2014-09-26 | 2015-01-14 | 北京环境特性研究所 | Corona detection method based on solar-blind ultraviolet imager |
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2015
- 2015-11-04 CN CN201510740437.3A patent/CN105301455A/en active Pending
Patent Citations (5)
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|---|---|---|---|---|
| US6104297A (en) * | 1999-01-20 | 2000-08-15 | Danilychev; Vladimir A. | Corona discharge detection system |
| CN102540025A (en) * | 2011-12-30 | 2012-07-04 | 武汉市兑尔科技有限公司 | Ultraviolet photon counting method based on width ratio module |
| KR101358086B1 (en) * | 2013-08-19 | 2014-02-12 | 한국 전기안전공사 | Apparatus for detecting discharge uv on power facility using ar coating of optic lens |
| CN103675626A (en) * | 2013-12-25 | 2014-03-26 | 深圳市同步银星电气有限公司 | Photonic positioning ultraviolet detection method |
| CN104280670A (en) * | 2014-09-26 | 2015-01-14 | 北京环境特性研究所 | Corona detection method based on solar-blind ultraviolet imager |
Non-Patent Citations (1)
| Title |
|---|
| 国家能源局: "DL/T298-2011 发电机定子绕组端部电晕检测与评定导则", 《中国人民共和国电力行业标准》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106646159A (en) * | 2016-12-12 | 2017-05-10 | 华北电力科学研究院有限责任公司 | Generator stator end winding corona detection method and device |
| CN111596187A (en) * | 2020-06-28 | 2020-08-28 | 云南电力技术有限责任公司 | Practical generator stator winding end corona detection method |
| CN113514740A (en) * | 2021-07-09 | 2021-10-19 | 哈尔滨理工大学 | Space positioning method for corona of generator stator winding |
| CN113514740B (en) * | 2021-07-09 | 2022-08-02 | 哈尔滨理工大学 | Space positioning method for corona of generator stator winding |
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Application publication date: 20160203 |