CN204044197U - A kind of GIS external sensor - Google Patents
A kind of GIS external sensor Download PDFInfo
- Publication number
- CN204044197U CN204044197U CN201420450447.4U CN201420450447U CN204044197U CN 204044197 U CN204044197 U CN 204044197U CN 201420450447 U CN201420450447 U CN 201420450447U CN 204044197 U CN204044197 U CN 204044197U
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- CN
- China
- Prior art keywords
- metal shielding
- circuit board
- collecting circuit
- gis
- external sensor
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Abstract
The utility model discloses a kind of GIS external sensor, comprise the metal shielding of a bottom opening, and be installed on the collecting circuit board in metal shielding; Described metal shielding inside scribbles one deck silver-bearing copper conductive paint; Shirt rim is enclosed in the formation one that stretches out of described metal shielding bottom opening place; Described shirt rim is covered with one deck conducting foam; N-type output interface is provided with at the top of described metal shielding; Described collecting circuit board is provided with antenna, wave filter, radio frequency preamplifiers and wave detector; Described antenna is bottom metal shielding; The inherent described collecting circuit board of described metal shielding be all provided with epoxy resin layer up and down, by epoxide resin material, described collecting circuit board is encapsulated; Described collecting circuit board connects described N-type output interface by transmission line.The utility model is rational in infrastructure, and antijamming capability is strong, and security performance is good.
Description
Technical field
The utility model relates to sensor field, particularly relates to a kind of GIS external sensor.
Background technology
GIS is the english abbreviation of gas-insulating and fully-enclosed combined electrical apparatus, for the high, precision and frontier power transmission and transforming equipment grown up nearly decades, utilize the insulating property that SF6 gas is good, fit together closed to isolating switch, disconnector, grounding switch, PT, CT, lightning arrester, bus, inlet-outlet sleeve, cable termination etc., this occupation area of equipment is little, advanced technology, and maintenance workload is little, operational reliability is high, will be the developing direction of following converting equipment.GIS fault is little, but just in case the consequence that breaks down is quite serious.GIS service work is more numerous and diverse, and the time is long, and its power failure range relates to non-faulting element sometimes; And maintenance craft requires very meticulous, careless slightlyly just may cause repair quality problem.GIS sensor is mainly used in GIS device.GIS sensor can be divided into built-in and external two kinds according to mounting means.Built-in sensors is arranged in GIS cavity, can obtain higher detection sensitivity, but also has higher requirements to the reliability of sensor.For the GIS device put into operation, great majority do not install built-in sensors, now then need to take outer sensor.Outer sensor is arranged on GIS disc insulator usually, the electromagnetic wave signal leaked by detecting insulator realizes the detection of shelf depreciation, its detection sensitivity not as built-in sensors, but has feature flexible for installation, is widely used in GIS partial discharge on-line checkingi.But the current general antijamming capability of GIS external sensor is poor.
Utility model content
The purpose of this utility model there are provided a kind of GIS external sensor, solves the problem that traditional general antijamming capability of GIS external sensor is poor.
For achieving the above object, the technical solution of the utility model is as follows:
A kind of GIS external sensor, comprises the metal shielding of a bottom opening, and is installed on the collecting circuit board in metal shielding; Described metal shielding inside scribbles one deck silver-bearing copper conductive paint; Shirt rim is enclosed in the formation one that stretches out of described metal shielding bottom opening place; Described shirt rim is covered with one deck conducting foam; N-type output interface is provided with at the top of described metal shielding; Described collecting circuit board is provided with antenna, wave filter, radio frequency preamplifiers and wave detector; Described antenna is bottom metal shielding; The inherent described collecting circuit board of described metal shielding be all provided with epoxy resin layer up and down, by epoxide resin material, described collecting circuit board is encapsulated; Described collecting circuit board connects described N-type output interface by transmission line.
Preferably, the surface of contact of described shirt rim and GIS disc insulator is arc-shaped surface.
Preferably, described shirt rim is provided with installation fixed screw.
Preferably, also metal mask tape is comprised; Metal shielding hoop is tied on GIS disc insulator by described metal mask tape, and is fixed by described installation fixed screw.
Preferably, the signal acquisition range of described collecting circuit board is 500 ~ 1500MHz.
Preferably, described metal shielding is that silicon steel material is made.
Pass through technique scheme, a kind of GIS external sensor that the utility model provides, following technique effect can be realized: it is outside that the utility model is installed on GIS disc insulator, prick with on GIS disc insulator by metal-insulator strap, the high-frequency signal gathered is from the inner first-hand signal out of GIS, metal-insulator band can effectively prevent external interference signal from entering the utility model from disc insulator simultaneously, ensure that degree of purity and the confidence level of collection signal; The utility model adopts silicon steel material to make at metal shielding, and shield effectiveness is good, and simultaneously inside scribbles one deck silver-bearing copper conductive paint and can improve shield effectiveness further; The surface of contact of shirt rim of the present utility model and GIS disc insulator is arc-shaped surface, and can fit with the perfection of GIS disc insulator during installation, and shirt rim be covered with one deck conducting foam, shield effectiveness is good, and antijamming capability is strong; The utility model is encapsulated collecting circuit board by epoxy resin, and security performance is good.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the utility model embodiment, below the accompanying drawing used required in describing embodiment is briefly described.
Fig. 1 is the structural representation of a kind of GIS external sensor disclosed in the utility model embodiment.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is clearly and completely described.
Embodiment
Composition graphs 1, a kind of GIS external sensor of the utility model, signal acquisition range of the present utility model is 500 ~ 1500MHz.Comprise the metal shielding 1 of a bottom opening, and be installed on the collecting circuit board 2 in metal shielding 1; Metal shielding 1 is made for silicon steel material.Metal shielding 1 inside scribbles one deck silver-bearing copper conductive paint; Shirt rim 3 is enclosed in the formation one that stretches out of metal shielding 1 bottom opening place; Shirt rim 3 is preferably arc-shaped surface with the surface of contact of GIS disc insulator; Shirt rim 3 is covered with one deck conducting foam 5; Can arrange on shirt rim 3 and fixed screw 4 is installed, by metal mask tape, the utility model hoop is tied on GIS disc insulator, and fix by installing fixed screw 4.N-type output interface 6 is provided with at the top of metal shielding 1; Collecting circuit board 2 is provided with antenna, wave filter, radio frequency preamplifiers and wave detector; Antenna is bottom metal shielding 1; The inherent collecting circuit board 2 of metal shielding 1 be all provided with epoxy resin layer up and down, by epoxide resin material, collecting circuit board 2 is encapsulated; Collecting circuit board 2 connects N-type output interface 6 by transmission line.
It is outside that the utility model is installed on GIS disc insulator, by the electromagnetic wave signal that the inner shelf depreciation of the utility model detection GIS excites, the signal detected after filtering, after radio frequency preamplifiers and wave detector, carry out sampling, store, digital signal processing and analysis, the data after external monitoring cell processing are uploaded to main processor unit by optical fiber; Main processor unit by the fault diagnosis expert system that runs thereon according to send here from field monitoring unit data, set up fault mode database, the state of insulation of GIS diagnosed, and show the fingerprint characteristic data that discharges in many ways; The shelf depreciation historical measurement data that main processor unit stores can for staff and long-distance management system inquiry.
To be apparent for those skilled in the art to the multiple amendment of embodiment, General Principle as defined herein when not departing from spirit or scope of the present utility model, can realize in other embodiments.Therefore, the utility model can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (6)
1. a GIS external sensor, is characterized in that, comprises the metal shielding of a bottom opening, and is installed on the collecting circuit board in metal shielding; Described metal shielding inside scribbles one deck silver-bearing copper conductive paint; Shirt rim is enclosed in the formation one that stretches out of described metal shielding bottom opening place; Described shirt rim is covered with one deck conducting foam; N-type output interface is provided with at the top of described metal shielding; Described collecting circuit board is provided with antenna, wave filter, radio frequency preamplifiers and wave detector; Described antenna is bottom metal shielding; The inherent described collecting circuit board of described metal shielding be all provided with epoxy resin layer up and down, by epoxide resin material, described collecting circuit board is encapsulated; Described collecting circuit board connects described N-type output interface by transmission line.
2. GIS external sensor according to claim 1, is characterized in that, the surface of contact of described shirt rim and GIS disc insulator is arc-shaped surface.
3. GIS external sensor according to claim 1, is characterized in that, described shirt rim is provided with installation fixed screw.
4. GIS external sensor according to claim 3, is characterized in that, also comprise metal mask tape; Metal shielding hoop is tied on GIS disc insulator by described metal mask tape, and is fixed by described installation fixed screw.
5. GIS external sensor according to claim 3, is characterized in that, the signal acquisition range of described collecting circuit board is 500 ~ 1500MHz.
6. GIS external sensor according to claim 3, is characterized in that, described metal shielding is that silicon steel material is made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420450447.4U CN204044197U (en) | 2014-08-11 | 2014-08-11 | A kind of GIS external sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420450447.4U CN204044197U (en) | 2014-08-11 | 2014-08-11 | A kind of GIS external sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204044197U true CN204044197U (en) | 2014-12-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420450447.4U Expired - Fee Related CN204044197U (en) | 2014-08-11 | 2014-08-11 | A kind of GIS external sensor |
Country Status (1)
| Country | Link |
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| CN (1) | CN204044197U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105606976A (en) * | 2016-03-09 | 2016-05-25 | 国家电网公司 | Anti-interference method for GIS partial discharge ultrahigh-frequency on-line monitoring |
| CN105676087A (en) * | 2016-02-02 | 2016-06-15 | 国家电网公司 | Sensing system for detecting ultrahigh-frequency partial discharging of GIS pouring hole |
| CN105676094A (en) * | 2016-04-22 | 2016-06-15 | 国网浙江省电力公司电力科学研究院 | External sensor for GIS partial discharge detection |
-
2014
- 2014-08-11 CN CN201420450447.4U patent/CN204044197U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105676087A (en) * | 2016-02-02 | 2016-06-15 | 国家电网公司 | Sensing system for detecting ultrahigh-frequency partial discharging of GIS pouring hole |
| CN105606976A (en) * | 2016-03-09 | 2016-05-25 | 国家电网公司 | Anti-interference method for GIS partial discharge ultrahigh-frequency on-line monitoring |
| CN105606976B (en) * | 2016-03-09 | 2018-09-18 | 国家电网公司 | A kind of anti-interference method for GIS partial discharge superfrequency on-line monitoring |
| CN105676094A (en) * | 2016-04-22 | 2016-06-15 | 国网浙江省电力公司电力科学研究院 | External sensor for GIS partial discharge detection |
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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: 20141224 Termination date: 20150811 |
|
| EXPY | Termination of patent right or utility model |