CN204256114U - GIS partial discharge detects with wireless superfrequency sensor - Google Patents
GIS partial discharge detects with wireless superfrequency sensor Download PDFInfo
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- CN204256114U CN204256114U CN201420807127.XU CN201420807127U CN204256114U CN 204256114 U CN204256114 U CN 204256114U CN 201420807127 U CN201420807127 U CN 201420807127U CN 204256114 U CN204256114 U CN 204256114U
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Abstract
A kind of GIS partial discharge detects with wireless superfrequency sensor, comprise: metal shell, be arranged on the signal processor in described metal shell, be arranged on the wireless signal transmission antenna of described metal shell surface side, the partial-discharge ultrahigh-frequency being arranged on the inside surface of the opposite face on the described surface of described metal shell detects antenna, and described partial-discharge ultrahigh-frequency detects antenna, described wireless signal transmission antenna is electrically connected with described signal processor.The sensor of the utility model embodiment utilizes ultrahigh-frequency signal to carry out the detection of GIS partial discharge, effectively can utilize the strong anti-interference performance of ultrahigh-frequency signal, and adopt the form of wireless transmission, substantially reduce on-the-spot installation work amount, improve the order of accuarcy of work on the spot efficiency and detection.
Description
Technical field
The utility model relates to local discharge of electrical equipment experimental technique field, and particularly a kind of GIS partial discharge detects with wireless superfrequency sensor.
Background technology
Closed gas insulation in combined electric appliance (Gas Insulated Switchgear, GIS) is widely used in electrical network because it has little, the good insulating property of floor area.But due to its totally enclosed design feature, once there is accident, the consequence score caused is much serious from opening-type equipment, and its fault restoration is particularly complicated.
Shelf depreciation is considered to the omen of insulation fault usually, and the appearance of shelf depreciation often illustrates that combined electrical apparatus exists the defect of installation, manufacture, even design aspect.The inner shelf depreciation sustainable development of combined electrical apparatus easily causes Fault of Insulating Breakdown, thus there is power outage, cause damage to national economy, just seem particularly important so detect the shelf depreciation of combined electrical apparatus, Partial Discharge Detection for combined electrical apparatus insulation fault discovery early and process significant.
Significant for the detection of tiny flaw in combined electrical apparatus to the measurement carrying out shelf depreciation in combined electrical apparatus operational process.It is the most effective detection method for local discharge of combined electrical apparatus that superfrequency detects, but the pick-up unit of routine is complicated, often needs to arrange a lot of line during on-the-spot multimetering, is not easy to on-the-spot multiple spot and detects.
Utility model content
Based on this, the purpose of this utility model is to provide a kind of GIS partial discharge to detect with wireless superfrequency sensor, can carry out Partial Discharge Detection online in combined electrical apparatus operational process, improves the order of accuarcy of GIS partial discharge detection and convenient degree.
For achieving the above object, the utility model embodiment by the following technical solutions:
A kind of GIS partial discharge detects with wireless superfrequency sensor, comprise: metal shell, be arranged on the signal processor in described metal shell, be arranged on the wireless signal transmission antenna of described metal shell surface side, the partial-discharge ultrahigh-frequency being arranged on the inside surface of the opposite face on the described surface of described metal shell detects antenna, and described partial-discharge ultrahigh-frequency detects antenna, described wireless signal transmission antenna is electrically connected with described signal processor.
GIS partial discharge based on the utility model embodiment detects with wireless superfrequency sensor, be provided with partial-discharge ultrahigh-frequency and detect antenna, wireless signal transmission antenna, partial-discharge ultrahigh-frequency detects antenna and receives the inner partial-discharge ultrahigh-frequency signal produced in combined electrical apparatus operational process, partial-discharge ultrahigh-frequency signal after signal processor digitizing is carried out wireless transmit by wireless signal transmission antenna, it utilizes ultrahigh-frequency signal to carry out the detection of shelf depreciation, effectively can utilize the strong anti-interference performance of ultrahigh-frequency signal, and adopt the form of wireless transmission, substantially reduce on-the-spot installation work amount, improve the order of accuarcy of work on the spot efficiency and detection.
Accompanying drawing explanation
Fig. 1 is the structural representation that GIS partial discharge of the present utility model detects with wireless superfrequency sensor embodiment;
Fig. 2 is the structural representation of signal processor in a concrete example.
Embodiment
For making the purpose of this utility model, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the utility model is described in further detail.Should be appreciated that embodiment described herein only in order to explain the utility model, do not limit protection domain of the present utility model.
Illustrate in Fig. 1 that GIS partial discharge of the present utility model detects the structural representation with wireless superfrequency sensor embodiment.As shown in Figure 1, the sensor in the present embodiment includes: wireless signal transmission antenna 1, partial-discharge ultrahigh-frequency detect antenna 2, signal processor 4, metal shell 5.
Signal processor 4 is arranged in metal shell 5, wireless signal transmission antenna 1 is arranged on the side on the surface of metal shell 5, partial-discharge ultrahigh-frequency detects the inside surface that antenna 2 is arranged on the opposite face on the above-mentioned surface of metal shell 5, and partial-discharge ultrahigh-frequency detects antenna 2, wireless signal transmission antenna 1 is electrically connected with signal processor 4.Wherein, wireless signal transmission antenna 1 can be arranged in the mode running through metal shell 5, and partial-discharge ultrahigh-frequency detects antenna 2 and can be arranged on metal shell inside, arrange in the mode being close to metal shell 5 inside surface.And the detection of this GIS partial discharge can be the integrated design with wireless superfrequency sensor, to make more compact structure.
When combined electrical apparatus partial-discharge detection is carried out at scene, GIS partial discharge of the present utility model is detected and is close on combined electrical apparatus disc insulator with partial-discharge ultrahigh-frequency detection antenna 2 side of wireless superfrequency sensor, carry out the measurement of local discharge signal.Partial-discharge ultrahigh-frequency detects antenna 2 and receives the inner partial-discharge ultrahigh-frequency signal produced of combined electrical apparatus, this partial-discharge ultrahigh-frequency signal carries out digitized processing through signal processor 4, and the partial-discharge ultrahigh-frequency signal after signal processor 4 digitizing is carried out wireless transmit by wireless signal transmission antenna 1.
As shown in Figure 1, the sensor in the present embodiment can also include more than one epoxy insulation 3, and partial-discharge ultrahigh-frequency detects antenna 2, wireless signal transmission antenna 1 is insulated by epoxy insulation 3 with metal shell 5, to improve insulating property.
Wherein, partial-discharge ultrahigh-frequency in the utility model embodiment detects antenna 2 can adopt miniaturization double helix Archimedes antenna, bandwidth can be designed to 300MHz (megahertz) ~ 3GHz (GHz), and the signal that partial-discharge ultrahigh-frequency detection antenna 2 measures is sent into signal processor 4 and carried out digitized processing.The mode that signal processor 4 pairs of partial-discharge ultrahigh-frequency signals carry out digitized processing can adopt existing mode in prior art to carry out.
The structural representation of the signal processor 4 in a concrete example has been shown in Fig. 2.As shown in Figure 2, in this example, this signal processor 4 includes Signal-regulated kinase 41, signal acquisition module 42, signal storage module 43, signal emission module 44, also include powered battery module 40, battery-powered module 40 is Signal-regulated kinase 41, signal acquisition module 42, signal storage module 43, signal emission module 44 provide power supply supply.
During work, the partial-discharge ultrahigh-frequency signal that Signal-regulated kinase 41 pairs of partial-discharge ultrahigh-frequencies detection antennas 2 detect is nursed one's health, envelope process is got to partial-discharge ultrahigh-frequency signal, obtain the local discharge signal after frequency reducing, local discharge signal after signal acquisition module 42 pairs of frequency reducings gathers, the sampling rate of 100MHz can be adopted to gather, and by the signal storage that collects to signal storage module 43, the signal that signal storage module 43 stores by signal emission module 44 is launched by wireless signal transmission antenna 1.The receiver of far-end further can be analyzed this signal after receiving the signal that wireless signal transmission antenna 1 sends.In the utility model embodiment, signal emission module 44 can adopt conventional wireless module to realize, and transmitting boundary can be greater than 20 meters.
The above embodiment only have expressed several embodiment of the present utility model, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the utility model the scope of the claims.It should be pointed out that for the person of ordinary skill of the art, without departing from the concept of the premise utility, can also make some distortion and improvement, these all belong to protection domain of the present utility model.Therefore, the protection domain of the utility model patent should be as the criterion with claims.
Claims (9)
1. a GIS partial discharge detects with wireless superfrequency sensor, it is characterized in that, comprise: metal shell, be arranged on the signal processor in described metal shell, be arranged on the wireless signal transmission antenna of described metal shell surface side, the partial-discharge ultrahigh-frequency being arranged on the inside surface of the opposite face on the described surface of described metal shell detects antenna, and described partial-discharge ultrahigh-frequency detects antenna, described wireless signal transmission antenna is electrically connected with described signal processor.
2. GIS partial discharge according to claim 1 detects with wireless superfrequency sensor, it is characterized in that, also comprise epoxy insulation, described partial-discharge ultrahigh-frequency is detected antenna, described wireless signal transmission antenna and described metal shell and is insulated by epoxy insulation.
3. GIS partial discharge according to claim 1 detects with wireless superfrequency sensor, it is characterized in that, it is miniaturization double helix Archimedes antenna that described partial-discharge ultrahigh-frequency detects antenna.
4. GIS partial discharge according to claim 3 detects with wireless superfrequency sensor, and it is characterized in that, the bandwidth of described miniaturization double helix Archimedes antenna is 300MHz ~ 3GHz.
5. GIS partial discharge according to claim 1 detects with wireless superfrequency sensor, it is characterized in that, described wireless signal transmission antenna runs through described metal shell and arranges.
6. GIS partial discharge according to claim 1 detects with wireless superfrequency sensor, it is characterized in that, described GIS partial discharge detects and is the integrated design with wireless superfrequency sensor.
7. GIS partial discharge according to claim 1 detects with wireless superfrequency sensor, it is characterized in that, described signal processor comprises Signal-regulated kinase, signal acquisition module, signal storage module, signal emission module, described Signal-regulated kinase to described partial-discharge ultrahigh-frequency detect antenna detection to partial-discharge ultrahigh-frequency signal get envelope process, obtain the local discharge signal after frequency reducing, described signal acquisition module gathers the local discharge signal after described frequency reducing, and by the signal storage that collects to described signal storage module, the signal of described signal storage module stores is gone out by described wireless signal transmission antenna transmission by described signal emission module.
8. GIS partial discharge according to claim 7 detects with wireless superfrequency sensor, it is characterized in that, described signal processor also comprises powered battery module, and described powered battery module is described Signal-regulated kinase, signal acquisition module, signal storage module, signal emission module provide power supply supply.
9. GIS partial discharge according to claim 7 detects with wireless superfrequency sensor, and it is characterized in that, the sampling rate of described signal acquisition module is 100Mhz.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420807127.XU CN204256114U (en) | 2014-12-17 | 2014-12-17 | GIS partial discharge detects with wireless superfrequency sensor |
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| CN201420807127.XU CN204256114U (en) | 2014-12-17 | 2014-12-17 | GIS partial discharge detects with wireless superfrequency sensor |
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| CN204256114U true CN204256114U (en) | 2015-04-08 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105137310A (en) * | 2015-10-10 | 2015-12-09 | 沈阳工业大学 | GIS partial discharge on-line detection system and method |
| CN106054046A (en) * | 2016-08-17 | 2016-10-26 | 国家电网公司 | GIS ultrahigh frequency partial discharge online monitoring system |
| CN106841959A (en) * | 2017-04-06 | 2017-06-13 | 上海交通大学 | For the intelligent high frequency local discharge sensor of power cable Partial Discharge Detection |
| CN105548841B (en) * | 2016-01-05 | 2018-07-17 | 国家电网公司 | A kind of built-in uhf sensor for GIS partial discharge detection spreads structure |
| CN109270417A (en) * | 2018-10-31 | 2019-01-25 | 江苏骏龙光电科技股份有限公司 | A kind of extra-high video sensor of the GIS partial discharge on-line checking of wireless transmission |
| CN109613404A (en) * | 2018-12-06 | 2019-04-12 | 国网电力科学研究院武汉南瑞有限责任公司 | A kind of superfrequency partial discharge detecting system for transformer equipment |
-
2014
- 2014-12-17 CN CN201420807127.XU patent/CN204256114U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105137310A (en) * | 2015-10-10 | 2015-12-09 | 沈阳工业大学 | GIS partial discharge on-line detection system and method |
| CN105548841B (en) * | 2016-01-05 | 2018-07-17 | 国家电网公司 | A kind of built-in uhf sensor for GIS partial discharge detection spreads structure |
| CN106054046A (en) * | 2016-08-17 | 2016-10-26 | 国家电网公司 | GIS ultrahigh frequency partial discharge online monitoring system |
| CN106841959A (en) * | 2017-04-06 | 2017-06-13 | 上海交通大学 | For the intelligent high frequency local discharge sensor of power cable Partial Discharge Detection |
| CN109270417A (en) * | 2018-10-31 | 2019-01-25 | 江苏骏龙光电科技股份有限公司 | A kind of extra-high video sensor of the GIS partial discharge on-line checking of wireless transmission |
| CN109613404A (en) * | 2018-12-06 | 2019-04-12 | 国网电力科学研究院武汉南瑞有限责任公司 | A kind of superfrequency partial discharge detecting system for transformer equipment |
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