CN202383241U - Ultrahigh-frequency sensor for detecting GIS partial discharge - Google Patents
Ultrahigh-frequency sensor for detecting GIS partial discharge Download PDFInfo
- Publication number
- CN202383241U CN202383241U CN2011205463285U CN201120546328U CN202383241U CN 202383241 U CN202383241 U CN 202383241U CN 2011205463285 U CN2011205463285 U CN 2011205463285U CN 201120546328 U CN201120546328 U CN 201120546328U CN 202383241 U CN202383241 U CN 202383241U
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Abstract
The utility model relates to an ultrahigh-frequency sensor for detecting GIS partial discharge, belonging to the technical field of power equipment detection instruments. The ultrahigh-frequency sensor comprises an outer shielding shell (1), an inner shielding shell (2), an inner shielding shell cover plate (3), an antenna reflecting plate (4), an antenna (5) and an antenna baffle (6), wherein the inner shielding shell is arranged in the outer shielding shell; the inner shielding shell cover plate is arranged in the inner shielding shell; the inner shielding shell is in a multi-cavity structure; the antenna reflecting plate, the antenna and the antenna baffle are arranged below the inner shielding shell cover plate; the antenna is arranged between the antenna reflecting plate and the antenna baffle; and the outer surface of the antenna baffle is in a cambered surface structure. The ultrahigh-frequency sensor provided by the utility model acquires an ultrahigh-frequency signal generated by GIS in the partial discharge, and can effectively avoid low-frequency interference signals existing on a site; a coupling agent is not required, the measurement is simple and easy to implement, and the working efficiency of GIS polling can be greatly improved; and as a dual-shielding structure is arranged, the anti-jamming capability is strong.
Description
Technical field
The utility model relates to a kind of GIS office to be put to detect and uses uhf sensor, belongs to power equipment detecting instrument technical field.
Background technology
Along with the growth of requirement to electric power, electricity has become various places economic development and the indispensable product of people's lives.For guaranteeing the stability and security of electric power supply, the detection of the especially operating high-tension electricity transmission equipment of power transmitting device local discharge signal has been become the problem of present the supreme arrogance of a person with great power.GIS equipment has been applied in each high voltage substation widely.Owing to lack detection means effectively always, the security of GIS equipment operation becomes a difficult problem always.The ultrasonic method of measuring of background technology owing to need the probe contact good, very easily receives the influence of external environment, and need smear couplant in the testing process, detect that the GIS of a website needs for up to several hours.
The utility model content
The purpose of the utility model provides a kind of GIS office and puts to detect and use uhf sensor; Effectively avoid the on-the-spot low-frequency interference signal that often has, need not to add couplant, measure simple and easy to do; Improve the work efficiency that GIS patrols and examines, solve the problems referred to above that background technology exists.
The technical scheme of the utility model is: a kind of GIS office puts to detect and uses uhf sensor; Comprise external shield shell, inner screening shell, inner screening housing-plate, antenna-reflected plate, antenna, antenna baffle plate; The inside of external shield shell is provided with the inner screening shell; The inside of inner screening shell is provided with the inner screening housing-plate, and the inner screening shell is the multi-cavity body structure, has avoided crosstalking between internal circuit; Antenna-reflected plate, antenna and antenna baffle plate be arranged on the inner screening housing-plate below, antenna is arranged between antenna-reflected plate and the antenna baffle plate, antenna baffle plate outside surface is a globoidal structure, plays the stable support effect.
The antenna baffle plate is the Teflon material, and high pressure resistant high temperature is corrosion-resistant, and antenna places in the external shield shell, and certain directivity is arranged, and can effectively mask the undesired signal of non-detection faces during measurement.
The external shield shell is provided with output BNC.
The external shield shell is provided with fixed via and retaining thread hole, and fixed via respectively has one on four jiaos of the shielding cases outside, can the cross-under fixed bar in order to fixedly bandage or extension spring, be applicable to when sensor is used for on-line monitoring; The retaining thread hole is in order to connecting supporting with it universal joint, during the higher equipment in detection position, can universal joint be fixed on the extension rod.
The beneficial effect of the utility model is: the utility model is gathered the ultrahigh-frequency signal that is produced when shelf depreciation takes place GIS; Can effectively avoid the on-the-spot low-frequency interference signal that often has; And need not to add couplant, measure simple and easy to doly, can greatly improve the work efficiency that GIS patrols and examines; Adopt double shield structure, antijamming capability is strong.
Description of drawings
Accompanying drawing 1 is the structural representation of the utility model;
Among the figure: external shield shell 1, inner screening shell 2, inner screening housing-plate 3, antenna-reflected plate 4, antenna 5, antenna baffle plate 6, output BNC7, fixed via 8, retaining thread hole 9.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described further through embodiment.
A kind of GIS office puts to detect and uses uhf sensor; Comprise external shield shell 1, inner screening shell 2, inner screening housing-plate 3, antenna-reflected plate 4, antenna 5, antenna baffle plate 6; The inside of external shield shell is provided with the inner screening shell; The inside of inner screening shell is provided with the inner screening housing-plate, and the inner screening shell is the multi-cavity body structure, has avoided crosstalking between internal circuit; Antenna-reflected plate, antenna and antenna baffle plate be arranged on the inner screening housing-plate below, antenna is arranged between antenna-reflected plate and the antenna baffle plate, antenna baffle plate outside surface is a globoidal structure, plays the stable support effect.
Antenna places in the external shield shell 1, and the external shield shell is provided with output BNC7.External shield shell 1 is provided with fixed via 8 and retaining thread hole 9, and fixed via 8 respectively has one on four jiaos of the shielding cases outside.
Claims (2)
1. a GIS office puts to detect and uses uhf sensor; It is characterized in that: comprise external shield shell (1), inner screening shell (2), inner screening housing-plate (3), antenna-reflected plate (4), antenna (5), antenna baffle plate (6); The inside of external shield shell is provided with the inner screening shell; The inside of inner screening shell is provided with the inner screening housing-plate, and the inner screening shell is the multi-cavity body structure; Antenna-reflected plate, antenna and antenna baffle plate be arranged on the inner screening housing-plate below, antenna is arranged between antenna-reflected plate and the antenna baffle plate, antenna baffle plate outside surface is a globoidal structure.
2. put to detect according to the said a kind of GIS office of claim 1 and use uhf sensor, it is characterized in that antenna places in the external shield shell, the external shield shell is provided with exports BNC (7); External shield shell (1) is provided with fixed via (8) and retaining thread hole (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205463285U CN202383241U (en) | 2011-12-23 | 2011-12-23 | Ultrahigh-frequency sensor for detecting GIS partial discharge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205463285U CN202383241U (en) | 2011-12-23 | 2011-12-23 | Ultrahigh-frequency sensor for detecting GIS partial discharge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202383241U true CN202383241U (en) | 2012-08-15 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205463285U Expired - Fee Related CN202383241U (en) | 2011-12-23 | 2011-12-23 | Ultrahigh-frequency sensor for detecting GIS partial discharge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202383241U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103529309A (en) * | 2013-10-21 | 2014-01-22 | 国家电网公司 | Ultrahigh-frequency sensor based on high-voltage shunt reactor |
| CN103837227A (en) * | 2014-03-21 | 2014-06-04 | 国家电网公司 | Piezoelectric sensor |
| 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 |
| CN105467286A (en) * | 2015-12-21 | 2016-04-06 | 许继（厦门）智能电力设备股份有限公司 | Local discharge detection device |
-
2011
- 2011-12-23 CN CN2011205463285U patent/CN202383241U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103529309A (en) * | 2013-10-21 | 2014-01-22 | 国家电网公司 | Ultrahigh-frequency sensor based on high-voltage shunt reactor |
| CN103529309B (en) * | 2013-10-21 | 2015-09-16 | 国家电网公司 | Based on the superfrequency sensor of high-voltage shunt reactor |
| CN103837227A (en) * | 2014-03-21 | 2014-06-04 | 国家电网公司 | Piezoelectric sensor |
| 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 |
| CN105467286A (en) * | 2015-12-21 | 2016-04-06 | 许继（厦门）智能电力设备股份有限公司 | Local discharge detection device |
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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: 20120815 Termination date: 20171223 |