CN102353685A - Insulator defilement detection method based on microwave radiation principle - Google Patents
Insulator defilement detection method based on microwave radiation principle Download PDFInfo
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- CN102353685A CN102353685A CN2011101799910A CN201110179991A CN102353685A CN 102353685 A CN102353685 A CN 102353685A CN 2011101799910 A CN2011101799910 A CN 2011101799910A CN 201110179991 A CN201110179991 A CN 201110179991A CN 102353685 A CN102353685 A CN 102353685A
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- insulator
- microwave radiation
- defilement
- detection method
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Abstract
The invention discloses an insulator defilement detection method based on a microwave radiation principle. The method comprises the following steps of: a. detecting microwave radiation energy under different defilement degree of insulators of a same type and with accurate known microwave radiation characteristics by a microwave radiation apparatus and forming a calibration value; b. calculating two limiting values based on the calibration value according to statistics, wherein one limiting value represents that the insulator has reached a certain defilement degree but still can be used for a short period, and the other limiting value represents that insulator has reached a limit defilement degree specified by electrical network operation and should be cleaned or flushed by water; c. detecting defilement degree of an operating insulator without power cut by the microwave radiation apparatus, comparing a detected value with the calibration value and figuring out a cleaning or flushing period for the insulator. The detection method of the invention is accurate, fast, convenient easily practiced without power cut, especially suitable for insulator maintenance in an electric power system of a high pollution region and easily popularized and implemented.
Description
One, technical field: the present invention relates to the filthy detection method of a kind of power system insulation, particularly relate to a kind of insulator contamination detection method based on the microwave radiation principle.
Two. background technology: in transmission system, insulator usually reduces dielectric strength because receiving the filth influence of materials such as salinity, earth, coal ash, and then pollution flashover takes place, and causes power outage.According to incompletely statistics; Increase the weight of along with what transmission line of electricity polluted, the insulator contamination accident is only second to thunderbolt, accounts for second of power grid accident sum; And loss is 10 times of lightning strike accident, and the insulator contamination that particularly industry, agricultural, coastland take place causes expensive power loss.
The filth of removing on the insulator is one of important measures that prevent pollution flashover; Electric system at present generally all adopts and regularly removes filthy method; Having a power failure or not under the power-off condition; Insulator is cleaned or the water flushing, still, is that the flushing of hand sweeping or water all exists a common problem to need to solve: how to confirm the most appropriate cleaning or water flushing cycle.This not only relates to cost issues, the prior safe operation that relates to electrical network.
Three. summary of the invention:
Technical matters to be solved by this invention is: overcome the deficiency of prior art, a kind of insulator contamination detection method based on the microwave radiation principle accurate, convenient and swift, that implement and need not to have a power failure easily that detects is provided.
Technical scheme of the present invention is: a kind of insulator contamination detection method based on the microwave radiation principle may further comprise the steps:
A, utilize microwave radiation device to detect the accurately known microwave radiation energy of insulator under different pollution levels of same type and microwave radiation characteristics, formation calibration value;
B, utilization statistics; Calibration value is counted two ultimate values; One of them ultimate value is represented that the pollution level of insulator has acquired a certain degree but still can short-term be continued to use; Another ultimate value representes that the pollution level of insulator has reached the limit of operation of power networks regulation, should clean or the water flushing;
C, utilize microwave radiation device under situation about not having a power failure, to detect the pollution level of the insulator that is moving, detected value is compared with calibration value, draw the cleaning or the water flushing cycle of this insulator.
Said microwave radiation device contains signal processor, microwave antenna, wave detector, peripheral operating circuit and host computer.Said signal processor is DSP signal processing chip or ARM series microprocessor.
The invention has the beneficial effects as follows:
1, the present invention use the Microwave Measurement technology can be at a distance, noncontact, obtain the running state information of tested insulator in real time; Under the situation that does not have a power failure, does not take a sample, do not disintegrate, detect the pollution level of insulator; The result who detects in real time compares with calibration value, when reaching capacity, can clean or the water flushing; Best cleaning or water flushing cycle have so just been confirmed, the security of reduction expense and raising operation of power networks.
2, the present invention detects under different pollution levels the insulator of same type, is arranged to calibration value, judges the pollution level of the insulator of The real time measure as benchmark, and is simple and precision is high.
3, the present invention's statistics calibrates two ultimate values, limits the pollution level of insulator with this, and is so that dynamically momentarily confirm cleaning or water flushing cycle, in time convenient.
4, the present invention detect accurate, convenient and swift, implement and need not to have a power failure easily, its wide accommodation is particularly useful for the maintenance of high pollution regional power system insulator, has good economic benefit after the popularization.
Four. embodiment:
Embodiment: the insulator contamination detection method based on the microwave radiation principle may further comprise the steps:
A, utilize microwave radiation device to detect the accurately known microwave radiation energy of insulator under different pollution levels of same type and microwave radiation characteristics, formation calibration value;
B, utilization statistics; Calibration value is counted two ultimate values; One of them ultimate value is represented that the pollution level of insulator has acquired a certain degree but still can short-term be continued to use; Another ultimate value representes that the pollution level of insulator has reached the limit of operation of power networks regulation, should clean or the water flushing;
C, utilize microwave radiation device under situation about not having a power failure, to detect the pollution level of the insulator that is moving, this detected value is compared with calibration value, draw the cleaning or the water flushing cycle of this insulator.
Microwave radiation device contains signal processor, microwave antenna, wave detector, peripheral operating circuit and host computer.Signal processor is DSP signal processing chip or ARM series microprocessor.
The present invention uses the Microwave Measurement technology under the situation that does not have a power failure, does not take a sample, do not disintegrate, to detect the pollution level of insulator; The result who detects in real time compares with calibration value; So that confirm best cleaning or water flushing cycle, the security of reduction expense and raising operation of power networks.
Claims (3)
1. insulator contamination detection method based on the microwave radiation principle may further comprise the steps:
A, utilize microwave radiation device to detect the accurately known microwave radiation energy of insulator under different pollution levels of same type and microwave radiation characteristics, formation calibration value;
B, utilization statistics; Calibration value is counted two ultimate values; One of them ultimate value is represented that the pollution level of insulator has acquired a certain degree but still can short-term be continued to use; Another ultimate value representes that the pollution level of insulator has reached the limit of operation of power networks regulation, should clean or the water flushing;
C, utilize microwave radiation device under situation about not having a power failure, to detect the pollution level of the insulator that is moving, detected value is compared with calibration value, draw the cleaning or the water flushing cycle of this insulator.
2. the insulator contamination detection method based on the microwave radiation principle according to claim 1 is characterized in that: said microwave radiation device contains signal processor, microwave antenna, wave detector, peripheral operating circuit and host computer.
3. the insulator contamination detection method based on the microwave radiation principle according to claim 2 is characterized in that: said signal processor is DSP signal processing chip or ARM series microprocessor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101799910A CN102353685A (en) | 2011-06-30 | 2011-06-30 | Insulator defilement detection method based on microwave radiation principle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101799910A CN102353685A (en) | 2011-06-30 | 2011-06-30 | Insulator defilement detection method based on microwave radiation principle |
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| CN102353685A true CN102353685A (en) | 2012-02-15 |
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| CN2011101799910A Pending CN102353685A (en) | 2011-06-30 | 2011-06-30 | Insulator defilement detection method based on microwave radiation principle |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114834325A (en) * | 2022-03-28 | 2022-08-02 | 西南交通大学 | Subway third rail insulator washs and detection device |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101661076A (en) * | 2009-09-04 | 2010-03-03 | 重庆大学 | Method for detecting pollution grade of insulator |
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2011
- 2011-06-30 CN CN2011101799910A patent/CN102353685A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101661076A (en) * | 2009-09-04 | 2010-03-03 | 重庆大学 | Method for detecting pollution grade of insulator |
Non-Patent Citations (4)
| Title |
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| 国家电力公司发输电运营部: "《电力工业技术监督标准汇编 绝缘监督 下册》", 30 September 2003, 中国电力出版社 * |
| 芦杉: "绝缘子污秽的8mm波辐射测量方法研究", 《中国优秀硕士学位论文全文数据库》 * |
| 高强: "基于微波辐射理论瓷绝缘子污秽检测方法研究", 《中国博士学位论文全文数据库》 * |
| 黄敬尧 等: "基于微波辐射原理的污秽绝缘子检测仪研制", 《电测与仪表》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114834325A (en) * | 2022-03-28 | 2022-08-02 | 西南交通大学 | Subway third rail insulator washs and detection device |
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Application publication date: 20120215 |