CN202994964U - UHF partial discharge sensor capable of closely cooperating with GIS basin-type insulator - Google Patents
UHF partial discharge sensor capable of closely cooperating with GIS basin-type insulator Download PDFInfo
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- CN202994964U CN202994964U CN 201220744788 CN201220744788U CN202994964U CN 202994964 U CN202994964 U CN 202994964U CN 201220744788 CN201220744788 CN 201220744788 CN 201220744788 U CN201220744788 U CN 201220744788U CN 202994964 U CN202994964 U CN 202994964U
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- screening
- gis
- discharge sensor
- receiving antenna
- disc insulator
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Abstract
Provided is a UHF partial discharge sensor capable of closely cooperating with a GIS basin-type insulator. The UHF partial discharge sensor comprises a screening housing with an opening on a bottom and a receiving antenna installed in the screening housing. A signal line of the receiving antenna is led out of the screening housing. All of an opening end of the screening housing or a part is formed by a conductive rubber baffle which is convenient to cut out an arc shape matching with the GIS basin-type insulator, so that the UHF partial discharge sensor can fit and install with a surface of the GIS basin-type insulator. The entire opening end of the screening housing or a part is formed by the conductive rubber baffle which is convenient to cut out an arc shape matching with the GIS basin-type insulator, so according to a diameter of the GIS basin-type insulator on site, the arc shape closely cooperating with GIS basin-type insulator can be cut out for a short time, and the receiving antenna disposed in the screening housing can only receive signals sent out from the GIS. External interference signals are effectively screened by the screening housing, and anti-interference capability of the sensor is improved in a large extent.
Description
Technical field
The utility model relates to a kind of state of insulation pick-up unit of power equipment, relates in particular to a kind of local discharge sensor for the transformer partial discharge signal detection.
Background technology
Partial Discharge Detection is the important content of electric power transformer insulated assessment.Superfrequency (ultra-high frequency in recent years, abbreviation UHF) the Partial Discharge Detection method is subject to people's attention day by day, and the ultrahigh-frequency signal that the superfrequency method encourages by the place's shelf depreciation current impulse of superfrequency sensor reception insulation defect judges position and the fault type of defective.
The abbreviation of GIS(Cubicle Gas-Insulated Switchgear) gordian technique of superfrequency Partial Discharge Detection method is sensor, i.e. UHF-antenna.The structure of common external UHF sensor is, it comprises the betal can of a bottom opening and be installed on receiving antenna in described betal can, and the signal wire of described receiving antenna stretches out described betal can.When using above-mentioned external UHF sensor to carry out Partial Discharge Detection to GIS, a problem that faces is exactly, discharge in the interference of external discharge such as transformer station on pole line is disturbed, thereby the interference of mobile phone, radar, electric welding etc. easily enters the betal can inner chamber to the detection signal generation interference of receiving antenna from the gap between above-mentioned betal can and GIS installed surface.
The utility model content
Technical problem to be solved in the utility model is, provide a kind of can with the close-fitting UHF local discharge sensor of GIS disc insulator, with this installation of sensors after on the GIS disc insulator, can fit with the surface of GIS disc insulator, to prevent that outside undesired signal from entering the inner chamber of sensor, the signal that just just spreads out of from GIS inside of the received signal of sensor antenna like this can improve the antijamming capability of sensor significantly.
the utility model solves its technical matters by following technical solution, a kind of can with the close-fitting UHF local discharge sensor of GIS disc insulator, the screening can and the receiving antenna that is installed in described screening can that comprise a bottom opening, the signal wire of described receiving antenna is drawn described screening can, it is characterized in that, the openend of described screening can is all or part of, and the conductive rubber baffle plate of being convenient to cut out with the adaptive arc of described GIS disc insulator of serving as reasons consists of, so that fitting with the surface of described GIS disc insulator, installs described UHF local discharge sensor, prevent that external interference signals from entering the sensor inner chamber.
Described screening can one opposite face is made of described conductive rubber baffle plate, and described conductive rubber baffle plate is inserted in the pickup groove of another opposite face corresponding position setting of described screening can.When needs carry out cutting to described conductive rubber baffle plate, can first it be pulled down, so that can its cutting of handled easily.
Another close screening can bottom position in opposite face outside of described screening can also is provided with the mounting structure of being convenient to attach it on the GIS disc insulator.
Described receiving antenna is set in parallel near the screening can bottom position, the below is provided with the antenna backplate, described antenna backplate and receiving antenna are arranged on the antenna holder that is fixed on the screening can inwall by web member, described screening can upper surface is provided with N connector, and the signal wire of described receiving antenna leads in described N connector by connecting circuit board.
Relative prior art, the utlity model has following beneficial effect 1) all or part of conductive rubber baffle plate of being convenient to cut out with the adaptive arc of described GIS disc insulator of serving as reasons of the openend of the utility model screening can consists of, can be according to the GIS disc insulator diameter at scene, cut out temporarily can with the close-fitting arc of described disc insulator, make the receiving antenna of being located in screening can only receive the signal that spreads out of from GIS inside, external interference signals is the conductively-closed housing shroud effectively, can improve to a great extent the antijamming capability of sensor;
2) conductive rubber baffle plate of the present utility model is arranged in described screening can by the mode of plug-in mounting, can be removed easily, so that carry out the trimming operation of conductive rubber baffle plate;
3) signal wire of the utility model receiving antenna leads to N connector by connecting circuit board, N connector is present the most frequently used UHF sensor connector, can compatible multiple shelf depreciation inspection machine, only need can realize the live testing of GIS shelf depreciation or detect online by the connecting test cable on N connector during use, easy to use.
Description of drawings
Fig. 1 is the cut-open view of the utility model preferred embodiment;
Fig. 2 is the upward view of the utility model preferred embodiment.
Embodiment
As shown in Figure 1, 2,1. and be installed on the receiving antenna of screening can in 1. 6. the screening can that the UHF local discharge sensor of the utility model preferred embodiment comprises a bottom opening, 6. receiving antenna is set in parallel in 1. bottom position of close screening can, 7. the below is provided with the antenna backplate, the antenna backplate 7. with receiving antenna 6. by fixed screw 5. be arranged on be fixed in screening can 1. the antenna holder on inwall 2. go up.4. screening can upper surface 1. is provided with N connector, receiving antenna signal wire 6. by connecting circuit board 3. lead to N connector 4. in, in order to be connected with the shelf depreciation inspection machine (not shown) of outside.
As shown in Figure 2,8. screening can 1. front and back opposite face is made of the conductive rubber baffle plate, can be according to the GIS disc insulator diameter at scene, cut out with the close-fitting arc of disc insulator temporarily and install fitting with the surface of GIS disc insulator, prevent that external interference signals from entering the inner chamber of UHF local discharge sensor.Screening can 1. left and right opposite face marginal position is provided with pickup groove, and 8. the conductive rubber baffle plate is inserted in described pickup groove, is convenient to easily 8. the conductive rubber baffle plate be pulled down carry out cutting.Screening can 1. the left and right opposite face outside near screening can 1. bottom position also be provided with the mounting structure of being convenient to attach it on the GIS disc insulator, described mounting structure is the 1. flanging of left and right opposite face bottom edge place's setting of screening can, and the edge of described flanging extends upward and forms the 1. groove shape structure in the left and right opposite face outside of screening can.Can utilize the stretch cord that is enclosed within the groove shape structure of both sides that described UHF local discharge sensor is fixed on the GIS disc insulator.
The utility model also can have other numerous embodiments, as the openend of screening can all by as described in the conductive rubber baffle plate consist of etc., above-mentioned embodiment is only preferred embodiment of the present utility model, should not limit practical range of the present utility model with the present embodiment.
Claims (4)
1. an energy and the close-fitting UHF local discharge sensor of GIS disc insulator, the screening can and the receiving antenna that is installed in described screening can that comprise a bottom opening, the signal wire of described receiving antenna is drawn described screening can, it is characterized in that, the openend of described screening can is all or part of, and the conductive rubber baffle plate of being convenient to cut out with the adaptive arc of described GIS disc insulator of serving as reasons consists of, and installs so that described UHF local discharge sensor can be fitted with the surface of described GIS disc insulator.
According to claim 1 can with the close-fitting UHF local discharge sensor of GIS disc insulator, it is characterized in that, described screening can one opposite face is made of described conductive rubber baffle plate, and described conductive rubber baffle plate is inserted in the pickup groove of another opposite face corresponding position setting of described screening can.
According to claim 2 can with the close-fitting UHF local discharge sensor of GIS disc insulator, it is characterized in that, another close screening can bottom position in opposite face outside of described screening can also is provided with the mounting structure of being convenient to attach it on the GIS disc insulator.
According to claim 3 can with the close-fitting UHF local discharge sensor of GIS disc insulator, it is characterized in that, described receiving antenna is set in parallel near the screening can bottom position, the below is provided with the antenna backplate, described antenna backplate and receiving antenna are arranged on the antenna holder that is fixed on the screening can inwall by web member, described screening can upper surface is provided with N connector, and the signal wire of described receiving antenna leads in described N connector by connecting circuit board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220744788 CN202994964U (en) | 2012-12-29 | 2012-12-29 | UHF partial discharge sensor capable of closely cooperating with GIS basin-type insulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220744788 CN202994964U (en) | 2012-12-29 | 2012-12-29 | UHF partial discharge sensor capable of closely cooperating with GIS basin-type insulator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202994964U true CN202994964U (en) | 2013-06-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220744788 Expired - Fee Related CN202994964U (en) | 2012-12-29 | 2012-12-29 | UHF partial discharge sensor capable of closely cooperating with GIS basin-type insulator |
Country Status (1)
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| CN (1) | CN202994964U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104898030A (en) * | 2015-05-04 | 2015-09-09 | 国家电网公司 | Extra-high voltage transformer station ultrahigh frequency partial discharge anti-electromagnetic interference testing method and mobile platform |
| CN106018892A (en) * | 2016-05-24 | 2016-10-12 | 国家电网公司 | Ultrahigh frequency test shielding device of GIS |
| CN106226662A (en) * | 2016-07-29 | 2016-12-14 | 国网北京市电力公司 | Superfrequency sensor |
| CN106574943A (en) * | 2014-07-28 | 2017-04-19 | 阿尔斯通技术有限公司 | Device for detecting a partial discharge from gas-insulated high-voltage equipment, and associated high-voltage electrical substation |
| CN107478964A (en) * | 2017-06-21 | 2017-12-15 | 国家电网公司 | Extra-high video sensor |
| CN107505552A (en) * | 2017-10-16 | 2017-12-22 | 云南电网有限责任公司电力科学研究院 | The lower shelf depreciation high-frequency signal extraction element of steep-front impact and measuring system |
| CN107807312A (en) * | 2017-09-26 | 2018-03-16 | 杭州西湖电子研究所 | A kind of superfrequency detection method for local discharge |
| CN114258223A (en) * | 2021-12-24 | 2022-03-29 | 广东电网有限责任公司 | Sensor |
-
2012
- 2012-12-29 CN CN 201220744788 patent/CN202994964U/en not_active Expired - Fee Related
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106574943B (en) * | 2014-07-28 | 2020-06-16 | 通用电气技术有限公司 | Device for detecting partial discharges from a gas-insulated high-voltage apparatus and associated high-voltage substation |
| CN106574943A (en) * | 2014-07-28 | 2017-04-19 | 阿尔斯通技术有限公司 | Device for detecting a partial discharge from gas-insulated high-voltage equipment, and associated high-voltage electrical substation |
| CN104898030A (en) * | 2015-05-04 | 2015-09-09 | 国家电网公司 | Extra-high voltage transformer station ultrahigh frequency partial discharge anti-electromagnetic interference testing method and mobile platform |
| CN104898030B (en) * | 2015-05-04 | 2018-06-12 | 国家电网公司 | Ultra-high voltage transformer station ultrahigh frequency partial discharge anti-electromagnetic interference test method and mobile platform |
| CN106018892A (en) * | 2016-05-24 | 2016-10-12 | 国家电网公司 | Ultrahigh frequency test shielding device of GIS |
| CN106018892B (en) * | 2016-05-24 | 2019-06-07 | 国家电网公司 | A kind of GIS gas-insulated switchgear superfrequency test screening arrangement |
| CN106226662A (en) * | 2016-07-29 | 2016-12-14 | 国网北京市电力公司 | Superfrequency sensor |
| CN107478964A (en) * | 2017-06-21 | 2017-12-15 | 国家电网公司 | Extra-high video sensor |
| CN107478964B (en) * | 2017-06-21 | 2023-04-11 | 国家电网公司 | Ultrahigh frequency sensor |
| CN107807312A (en) * | 2017-09-26 | 2018-03-16 | 杭州西湖电子研究所 | A kind of superfrequency detection method for local discharge |
| CN107807312B (en) * | 2017-09-26 | 2020-01-14 | 杭州西湖电子研究所 | Ultrahigh frequency partial discharge detection method |
| CN107505552A (en) * | 2017-10-16 | 2017-12-22 | 云南电网有限责任公司电力科学研究院 | The lower shelf depreciation high-frequency signal extraction element of steep-front impact and measuring system |
| CN114258223A (en) * | 2021-12-24 | 2022-03-29 | 广东电网有限责任公司 | Sensor |
| CN114258223B (en) * | 2021-12-24 | 2024-04-30 | 广东电网有限责任公司 | Sensor |
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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 |
Granted publication date: 20130612 Termination date: 20151229 |
|
| EXPY | Termination of patent right or utility model |