CN201662603U - Acoustoelectric combined sensor - Google Patents
Acoustoelectric combined sensor Download PDFInfo
- Publication number
- CN201662603U CN201662603U CN2009203164525U CN200920316452U CN201662603U CN 201662603 U CN201662603 U CN 201662603U CN 2009203164525 U CN2009203164525 U CN 2009203164525U CN 200920316452 U CN200920316452 U CN 200920316452U CN 201662603 U CN201662603 U CN 201662603U
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- sensor
- sonac
- acoustic
- fiberglass pole
- coupling sleeve
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Abstract
The utility model relates to an acoustoelectric combined sensor, which belongs to the technical field of the power system. The acoustoelectric combined sensor comprises a fiberglass rod, an ultra-high-frequency sensor, an ultrasonic sensor, a connecting sleeve and a high-voltage insulating rod, wherein the ultrasonic sensor and the ultra-high-frequency sensor are respectively fixed in the connecting sleeve, the high-voltage insulating rod is connected with the rear end of the connecting sleeve, the fiberglass rod is fixedly arranged at the front end of the connecting sleeve, one end of the fiberglass rod is contacted with the ultrasonic sensor, the other end of the fiberglass rod is contacted with a power cable body, and the ultra-high-frequency sensor is arranged in the connecting sleeve and is sleeved on the fiberglass rod. Since the ultrasonic sensor and the ultra-high-frequency sensor are integrated in one sleeve, and the fiberglass rod can transmit ultrasonic signals produced in local discharge of the power cable to the ultrasonic sensor, the ultra-high-frequency sensor can effectively detect ultra-high-frequency signals produced in local discharge of the power cable once the fiberglass rod with the appropriate length is selected.
Description
Technical field
The utility model relates to a kind of pick-up unit of technical field of power systems, specifically is a kind of acoustic-electric combination sensor.
Background technology
The Partial Discharge Detection method is used in current online detection to power cable more, and the Partial Discharge Detection method has: electromagnetic coupled method, ultrahigh frequency method, ultrasonic Detection Method etc.When using supercritical ultrasonics technology to detect the power cable shelf depreciation, sonac and uhf sensor are difficult to use band that sonac is tied up on cable usually admittedly on the power cable body, have brought very burden to detection, and very dangerous.Simultaneously, when traditional acoustoelectric combined method detected the power cable shelf depreciation, uhf sensor and sonac all were separately independently, used inconvenient.
Find through retrieval prior art, sonac and uhf sensor that traditional detection cable office puts are discrete, Chinese patent literature CN2083297 put down in writing a kind of " the electrical equipment shelf depreciation is pasted ultrasonic photoelectric sensor outward ", but this technology is only used supersonic testing method; In addition, Chinese patent literature CN101527221 has put down in writing a kind of " ultrahigh frequency monitoring sensor of the GIS shelf depreciation of external ", and this technology is equally only used the ultrahigh frequency detection method, the sensor of not combining.When detecting the power cable insulation situation, in order to guarantee the accuracy of input, use sonac and uhf sensor to detect in the time of will seeking common ground, in order to guarantee the synchronism of signal, traditional method just necessarily requires to have simultaneously two above staff's co-operate, and this has brought very big trouble for detecting.
The utility model content
The utility model is at the prior art above shortcomings, a kind of acoustic-electric combination sensor is provided, sonac and uhf sensor are integrated in the sleeve pipe, the ultrasonic signal that produces when using fiberglass pole conduct power cable local discharge is given sonac, under the situation of the length of suitably selecting fiberglass pole, the ultra-high frequency signal that uhf sensor produces in the time of can effectively detecting the power cable shelf depreciation.This sensor can be finished by operating personnel.
The utility model is achieved through the following technical solutions, the utility model comprises: fiberglass pole, uhf sensor, sonac, coupling sleeve and High-Voltage Insulation bar, wherein: sonac and uhf sensor are fixedly set in the coupling sleeve respectively, the High-Voltage Insulation bar is connected with the rear end of coupling sleeve, fiberglass pole is fixedly set in the front end of coupling sleeve, one end of fiberglass pole contacts with sonac, the other end contacts with the power cable body, and uhf sensor is arranged in the joint sleeve soldier and is socketed on the fiberglass pole.
The length of described fiberglass pole is 1m;
Described coupling sleeve comprises: body and housing, wherein: body is fixedlyed connected with housing and is hollow-core construction, the internal diameter of housing and the external diameter of fiberglass pole are complementary, and the external diameter and the uhf sensor of housing are complementary, and sonac places the inside of body.
Described uhf sensor is circular, its external diameter 75mm, and internal diameter 10mm, thick 2mm is made of copper.
Described sonac is cylindric piezo-electric type calibrate AE sensor, and its diameter is 25mm, and height is 30mm.
The High-Voltage Insulation bar that described High-Voltage Insulation bar is an epoxide resin material, long is 1m.
The ultrasonic signal that the utility model produces when using fiberglass pole conduct power cable local discharge, ultrasonic signal attenuation rate in fiberglass pole is very low, is 6.5 * 10
-7DB/m can ensure that ultrasonic signal effectively is transmitted to sonac; By sonac and uhf sensor are integrated in the sleeve, make things convenient for the scene to use two sensor simultaneously.
Description of drawings
Fig. 1 is the utility model structural representation.
Fig. 2 is the sleeve synoptic diagram.
Fig. 3 is the housing synoptic diagram;
Wherein: a is a front schematic view, and b is a schematic rear view.
Fig. 4 is the body synoptic diagram.
Fig. 5 is an embodiment uhf sensor synoptic diagram.
Embodiment
Below embodiment of the present utility model is elaborated; present embodiment is being to implement under the prerequisite with technical solutions of the utility model; provided detailed embodiment and concrete operating process, but protection domain of the present utility model is not limited to following embodiment.
As shown in Figure 1, present embodiment comprises: fiberglass pole 1, uhf sensor 2, coupling sleeve 3, sonac 4 and High-Voltage Insulation bar 5, and wherein: sonac 4 and uhf sensor 2 are fixedly installed in respectively in the coupling sleeve 3; High-Voltage Insulation bar 5 fixedly is positioned on the rear end of coupling sleeve 3; Fiberglass pole 1 is installed on the front end of coupling sleeve 3; One end of fiberglass pole 1 contacts with sonac 4, and the other end contacts with the power cable body; Uhf sensor 2 is positioned in the housing 7 of coupling sleeve 3, is socketed on the fiberglass pole 1.
The length of described fiberglass pole 1 is 1m;
As shown in Figure 5, described uhf sensor 2 is circular, be convenient to be installed in the coupling sleeve 3, and its external diameter 75mm, internal diameter 10mm, thick 2mm is made of copper.
Described sonac 4 is the piezo-electric type calibrate AE sensor, and is cylindric, is installed in the coupling sleeve, and its diameter is 25mm, and height is 30mm.
As described in Fig. 2-Fig. 5, described coupling sleeve 3 comprises: body 6 and housing 7, wherein: body 6 is fixedlyed connected with housing 7 and is hollow-core construction, the external diameter of the internal diameter of housing 7 and fiberglass pole 1 is complementary, the external diameter of housing 7 and uhf sensor 2 are complementary, and sonac 4 places the inside of body 6.
Claims (6)
1. acoustic-electric combination sensor, it is characterized in that, comprise: fiberglass pole, uhf sensor, sonac, coupling sleeve and High-Voltage Insulation bar, wherein: sonac and uhf sensor are fixedly set in the coupling sleeve respectively, the High-Voltage Insulation bar is connected with the rear end of coupling sleeve, fiberglass pole is fixedly set in the front end of coupling sleeve, one end of fiberglass pole contacts with sonac, the other end contacts with the power cable body, and uhf sensor is arranged in the joint sleeve soldier and is socketed on the fiberglass pole.
2. acoustic-electric combination sensor according to claim 1 is characterized in that, the length of described fiberglass pole is 1m.
3. acoustic-electric combination sensor according to claim 1 is characterized in that, described uhf sensor is circular, its external diameter 75mm, internal diameter 10mm, thick 2mm.
4. acoustic-electric combination sensor according to claim 1 is characterized in that, described sonac is cylindric piezo-electric type calibrate AE sensor, and its diameter is 25mm, and height is 30mm.
5. acoustic-electric combination sensor according to claim 1 is characterized in that, the High-Voltage Insulation bar that described High-Voltage Insulation bar is an epoxide resin material, and long is 1m.
6. acoustic-electric combination sensor according to claim 1, it is characterized in that, described coupling sleeve comprises: body and housing, wherein: body is fixedlyed connected with housing and is hollow-core construction, the internal diameter of housing and the external diameter of fiberglass pole are complementary, the external diameter and the uhf sensor of housing are complementary, and sonac places the inside of body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203164525U CN201662603U (en) | 2009-12-03 | 2009-12-03 | Acoustoelectric combined sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203164525U CN201662603U (en) | 2009-12-03 | 2009-12-03 | Acoustoelectric combined sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201662603U true CN201662603U (en) | 2010-12-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009203164525U Expired - Fee Related CN201662603U (en) | 2009-12-03 | 2009-12-03 | Acoustoelectric combined sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201662603U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102226830A (en) * | 2011-04-11 | 2011-10-26 | 云南电力试验研究院(集团)有限公司 | Electric power acoustoelectric combination insulation monitoring track integration apparatus |
| CN103267878A (en) * | 2013-04-24 | 2013-08-28 | 国家电网公司 | Connector for super-high frequency partial discharge detection |
| CN104614648A (en) * | 2015-02-02 | 2015-05-13 | 西安交通大学 | Electroacoustic combined DC local discharging detecting device |
| CN107037342A (en) * | 2017-06-15 | 2017-08-11 | 国网四川省电力公司电力科学研究院 | A kind of compound sensor for cable insulation defects detection |
| CN110780166A (en) * | 2019-11-08 | 2020-02-11 | 国网浙江省电力有限公司温州供电公司 | Partial discharge detection system for medium-voltage cable |
-
2009
- 2009-12-03 CN CN2009203164525U patent/CN201662603U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102226830A (en) * | 2011-04-11 | 2011-10-26 | 云南电力试验研究院(集团)有限公司 | Electric power acoustoelectric combination insulation monitoring track integration apparatus |
| CN102226830B (en) * | 2011-04-11 | 2015-08-19 | 云南电力试验研究院(集团)有限公司 | A kind of electric power acoustoelectric combination insulation monitoring track integration apparatus |
| CN103267878A (en) * | 2013-04-24 | 2013-08-28 | 国家电网公司 | Connector for super-high frequency partial discharge detection |
| CN103267878B (en) * | 2013-04-24 | 2016-01-20 | 国家电网公司 | A kind of connector for super-high frequency partial discharge detection |
| CN104614648A (en) * | 2015-02-02 | 2015-05-13 | 西安交通大学 | Electroacoustic combined DC local discharging detecting device |
| CN107037342A (en) * | 2017-06-15 | 2017-08-11 | 国网四川省电力公司电力科学研究院 | A kind of compound sensor for cable insulation defects detection |
| CN110780166A (en) * | 2019-11-08 | 2020-02-11 | 国网浙江省电力有限公司温州供电公司 | Partial discharge detection system for medium-voltage cable |
| CN110780166B (en) * | 2019-11-08 | 2022-01-25 | 国网浙江省电力有限公司温州供电公司 | Partial discharge detection system for medium-voltage cable |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101201 Termination date: 20181203 |