CN102866332A - On-line corona discharge detection system for cable terminal - Google Patents
On-line corona discharge detection system for cable terminal Download PDFInfo
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- CN102866332A CN102866332A CN2012103647029A CN201210364702A CN102866332A CN 102866332 A CN102866332 A CN 102866332A CN 2012103647029 A CN2012103647029 A CN 2012103647029A CN 201210364702 A CN201210364702 A CN 201210364702A CN 102866332 A CN102866332 A CN 102866332A
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Abstract
The invention relates to an on-line corona discharge detection system for a cable terminal, which comprises a partial discharge ultraviolet detection unit, a central control processing unit, a GSM (global system for mobile communication) data communication unit and a display unit, wherein ultraviolet radiation signals which are generated when a cable is partially discharged are collected by the partial discharge ultraviolet detection unit on site, an output end of the partial discharge ultraviolet detection unit is connected with an input end of MCU1 (micro-programmed control unit) of the central control and processing unit, data processed by the central control and processing unit are uploaded to a GPRS (general packet radio service) communication network and are transmitted to the display unit by the GSM data communication unit, and data results are output by the display unit. Compared with the prior art, the on-line corona discharge detection system has wide application scope, and can carry out conductor damage detection, pollution detection of high-voltage equipment, insulator discharge detection, insulation detect detection and the like. The on-line corona discharge detection system is more accurate and sensitive in the detection, and is almost free from interference.
Description
Technical field
The present invention relates to a kind of cable detection system, especially relate to a kind of cable termination corona discharge on-line detecting system.
Background technology
The status monitoring of power cable is related to the security of operation of electric system.Compare with overhead transmission line, underground power cable has incomparable superiority, but the prominent question of inconvenient maintenance is also arranged.Therefore, become the Important Problems of domestic and international expert, focus of attention and research for the fault detect of underground power cable.Present products such as existing underground cable fault locating instrument, reflectoscope, measure buried cable trend and the degree of depth, open circuit, the position of short circuit, trouble spot.But these methods are single, can not the comprehensive detection cable temperature, current-carrying capacity of cable, shelf depreciation, medium is aging and the cable operational factor such as surrounding enviroment, can not carry out the assessment of power cable on-line condition monitoring, can't adapt to the needs of the preventive management of modern power network development and science, can't satisfy the requirement of setting up underground power cable safe early warning infosystem.Therefore, a kind of device that can the on-line monitoring power cable state need to be arranged now.
Summary of the invention
Purpose of the present invention be exactly provide a kind of in order to overcome the defective that above-mentioned prior art exists and have wide range of applications, highly sensitive cable termination corona discharge on-line detecting system.
Purpose of the present invention can be achieved through the following technical solutions:
A kind of cable termination corona discharge on-line detecting system, this detection system comprises shelf depreciation ultraviolet detecting unit, center-control processing unit, GSM data communication units and display unit, the UV radiation signal that produces during described shelf depreciation ultraviolet detecting unit collection in worksite cable generation shelf depreciation, its output terminal is connected with the MCU1 input end of center-control processing unit, the data upload that described GSM data communication units obtains the center-control processing unit processes is to the GPRS communication network and be transferred in the display unit, through display unit output data result.
Described shelf depreciation ultraviolet detecting unit comprises ultraviolet imagery object lens, ultraviolet light optical filtering, day blind optical filter, ultraviolet image intensifying system and CCD camera, the UV radiation signal source is shone through bias light, be transferred to the ultraviolet imagery object lens from signal source, by ultraviolet light optical filtering filtering part bias light, again by day blind optical filter shine the ultraviolet image intensifying system, light signal is exaggerated and is converted into visible light signal output, and visible light signal carries out being transferred in the center-control processing unit after signal is processed through the CCD camera.
Be provided with photocathode E in the described ultraviolet image intensifying system, the UV radiation signal of blind optical filter shines photocathode E by day, is exaggerated and is converted into visible light signal output through strengthening signal.
Described shelf depreciation ultraviolet detecting unit, center-control processing unit, GSM data communication units can also be controlled supply voltage through electric power management circuit, described electric power management circuit converts supply voltage the supply voltage of 3.3V to, and its output terminal is connected with the power end of shelf depreciation ultraviolet detecting unit, center-control processing unit and GSM data communication units respectively.
Compared with prior art, the present invention has wide range of applications, can carry out the detection of wire wound, high-tension apparatus pollution inspection, insulator arc-over detection and insulation defect detection etc., also can be used in addition the outdoor terminal corona discharge situation of 110kV and above cable is detected online, for cable operation department provides more cable system operation information, in addition, the present invention is more directly perceived sensitiveer on detecting than pulse current method and electromagnetic field method traditionally, can be interfered hardly.
Description of drawings
Fig. 1 is structural representation of the present invention.
Embodiment
The present invention is described in detail below in conjunction with the drawings and specific embodiments.
Embodiment
A kind of cable termination corona discharge on-line detecting system, its structure as shown in Figure 1, this detection system comprises shelf depreciation ultraviolet detecting unit 1, center-control processing unit 2, GSM data communication units 3 and display unit 4, the UV radiation signal that produces during shelf depreciation ultraviolet detecting unit 1 collection in worksite cable generation shelf depreciation, its output terminal is connected with the MCU1 input end of center-control processing unit 2, GSM data communication units 3 is processed the data upload that obtains to the GPRS communication network with center-control processing unit 2 and is transferred in the display unit 4, through display unit 4 output data results.
Shelf depreciation ultraviolet detecting unit 2 comprises ultraviolet imagery object lens, ultraviolet light optical filtering, day blind optical filter, ultraviolet image intensifying system and CCD camera, the UV radiation signal source is shone through bias light, be transferred to the ultraviolet imagery object lens from signal source, by ultraviolet light optical filtering filtering part bias light, again by day blind optical filter shine the ultraviolet image intensifying system, and shine the photocathode E of ultraviolet image intensifying system, light signal is exaggerated and is converted into visible light signal output, and visible light signal carries out being transferred in the center-control processing unit 2 after signal is processed through the CCD camera.Center-control processing unit 2 is used for data pre-service, data transmission, realize overall control, make the unit co-ordination, independently MCU and relevant auxiliary circuit consist of by three, the TMS320LF2407 that MCU adopts TI company to produce, its output terminal is connected with the input end of GSM data communication units 5.
In addition, shelf depreciation ultraviolet detecting unit 1, center-control processing unit 2, GSM data communication units 3 can also be controlled through 5 pairs of supply voltages of electric power management circuit, electric power management circuit 5 converts supply voltage the supply voltage of 3.3V to, and its output terminal is connected with the power end of shelf depreciation ultraviolet detecting unit 1, center-control processing unit 2 and GSM data communication units 3 respectively.
Claims (4)
1. cable termination corona discharge on-line detecting system, it is characterized in that, this detection system comprises shelf depreciation ultraviolet detecting unit, the center-control processing unit, GSM data communication units and display unit, the UV radiation signal that produces during described shelf depreciation ultraviolet detecting unit collection in worksite cable generation shelf depreciation, its output terminal is connected with the MCU1 input end of center-control processing unit, the data upload that described GSM data communication units obtains the center-control processing unit processes is to the GPRS communication network and be transferred in the display unit, through display unit output data result.
2. a kind of cable termination corona discharge on-line detecting system according to claim 1, it is characterized in that, described shelf depreciation ultraviolet detecting unit comprises the ultraviolet imagery object lens, the ultraviolet light optical filtering, day blind optical filter, ultraviolet image intensifying system and CCD camera, the UV radiation signal source is shone through bias light, be transferred to the ultraviolet imagery object lens from signal source, by ultraviolet light optical filtering filtering part bias light, again by day blind optical filter shine the ultraviolet image intensifying system, light signal is exaggerated and is converted into visible light signal output, and visible light signal carries out being transferred in the center-control processing unit after signal is processed through the CCD camera.
3. a kind of cable termination corona discharge on-line detecting system according to claim 2, it is characterized in that, be provided with photocathode E in the described ultraviolet image intensifying system, the UV radiation signal of blind optical filter shines photocathode E by day, is exaggerated and is converted into visible light signal output through strengthening signal.
4. a kind of cable termination corona discharge on-line detecting system according to claim 1, it is characterized in that, described shelf depreciation ultraviolet detecting unit, center-control processing unit, GSM data communication units can also be controlled supply voltage through electric power management circuit, described electric power management circuit converts supply voltage the supply voltage of 3.3V to, and its output terminal is connected with the power end of shelf depreciation ultraviolet detecting unit, center-control processing unit and GSM data communication units respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103647029A CN102866332A (en) | 2012-09-26 | 2012-09-26 | On-line corona discharge detection system for cable terminal |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103647029A CN102866332A (en) | 2012-09-26 | 2012-09-26 | On-line corona discharge detection system for cable terminal |
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| CN102866332A true CN102866332A (en) | 2013-01-09 |
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| CN2012103647029A Pending CN102866332A (en) | 2012-09-26 | 2012-09-26 | On-line corona discharge detection system for cable terminal |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103592585A (en) * | 2013-11-19 | 2014-02-19 | 西安永电电气有限责任公司 | Judging method and system for partial discharge position of IGBT power module |
| CN111628557A (en) * | 2020-04-29 | 2020-09-04 | 国网浙江省电力有限公司湖州供电公司 | Multifunctional integrated charging device for electric power detection instrument |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101540838A (en) * | 2009-04-24 | 2009-09-23 | 广州星博科仪有限公司 | Ultraviolet digital camera |
| CN101706548A (en) * | 2009-11-06 | 2010-05-12 | 宁波大学 | Optical detection device for corona discharge |
| CN102279352A (en) * | 2011-06-14 | 2011-12-14 | 中国电力科学研究院 | Corona test method for effect of direct current transmission line on adjacent trees |
| CN102331540A (en) * | 2011-05-26 | 2012-01-25 | 江苏科技大学 | On-line monitoring device and method for corona discharge of ultra-high voltage power transmission line |
-
2012
- 2012-09-26 CN CN2012103647029A patent/CN102866332A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101540838A (en) * | 2009-04-24 | 2009-09-23 | 广州星博科仪有限公司 | Ultraviolet digital camera |
| CN101706548A (en) * | 2009-11-06 | 2010-05-12 | 宁波大学 | Optical detection device for corona discharge |
| CN102331540A (en) * | 2011-05-26 | 2012-01-25 | 江苏科技大学 | On-line monitoring device and method for corona discharge of ultra-high voltage power transmission line |
| CN102279352A (en) * | 2011-06-14 | 2011-12-14 | 中国电力科学研究院 | Corona test method for effect of direct current transmission line on adjacent trees |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103592585A (en) * | 2013-11-19 | 2014-02-19 | 西安永电电气有限责任公司 | Judging method and system for partial discharge position of IGBT power module |
| CN111628557A (en) * | 2020-04-29 | 2020-09-04 | 国网浙江省电力有限公司湖州供电公司 | Multifunctional integrated charging device for electric power detection instrument |
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Application publication date: 20130109 |