CN202119867U - Built-in coupler for measuring GIS partial discharge - Google Patents
Built-in coupler for measuring GIS partial discharge Download PDFInfo
- Publication number
- CN202119867U CN202119867U CN2011201846654U CN201120184665U CN202119867U CN 202119867 U CN202119867 U CN 202119867U CN 2011201846654 U CN2011201846654 U CN 2011201846654U CN 201120184665 U CN201120184665 U CN 201120184665U CN 202119867 U CN202119867 U CN 202119867U
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- induction electrode
- insulcrete
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- cover plate
- coupling mechanism
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Abstract
The present utility model relates to a built-in coupler for measuring GIS partial discharge. The built-in coupler comprises an induction electrode, and an insulating plate fixed between a barrel cover plate and the induction electrode, the insulating plate is provided with a connecting hole for fixing the insulating plate with the barrel cover plate directly, the center of the induction electrode is provided with an arranging hole for fixing the induction electrode with the insulating plate, the center of the insulating plate is provided with an electrical connecting piece, one end of the electrical connecting piece is connected with the induction electrode, and the other end is connected with a cable joint. In the coupler, the insulating plate and the induction plate are respectively fixed with the barrel cover plate, the insulating plate is provided with the connecting hole, the insulating is directly fixed on the barrel cover plate, the induction electrode is fixed with the insulating plate and electrically connected with the cable joint. The phenomenon of the prior art that a metal bolt is contacted with the induction electrode when the metal bolt passes through the insulating plate and the induction plate at the same time to fix is avoided, the problem that the distance between the metal bolt and the induction electrode is too close is solved, and the detection sensitivity of the UHF coupler is greatly increased.
Description
Technical field
The utility model relates to a kind of measurement GIS apparatus local discharge based on UHF method sensing and measures the built-in coupling mechanism that uses.
Background technology
On the sensing mode of the online detection of GIS shelf depreciation, mainly contained ultrasonic sensing and superfrequency (Ultra High Frequency-UHF) sensing by the effective and feasible sensing mode of actual proof.Ultrasonic sensing can reach certain sensitivity for the defective near device housings, but for the defective of equipment depths, in the signal propagation path decay significantly, detection sensitivity is restricted.The superfrequency sensing is that (it has sensing sensitivity, antijamming capability and positional accuracy preferably to the detection super high band that shelf depreciation produced for UHF, 300MHz-3GMHz) electromagnetic wave signal.For can be the more sensitive small defective of device interior that detects, need built-in coupling mechanism have higher sensitivity.At present, GIS manufacturing firms such as ABB, Siemens, Toshiba all can provide the GIS equipment with inner UHF coupling mechanism.
At present, the built-in coupler structure that the most GIS of measurement shelf depreciations are used is seen Fig. 1, and what fixedly induction electrode was used is two metal set bolts 1; The metal bolts symmetry is flush-mounted in the outer edge of induction electrode 2; And pass insulating mat 3 and be fixed on the cylindrical shell cover plate, because the very thin thickness of insulating mat, cable splice 4 can pass cylindrical shell cover plate 5 and directly link to each other with induction electrode with insulating mat; Insulate through insulating part 6 between bolt 1 and the induction electrode 2; Metal bolts 1 and induction electrode 2 close will cause part UHF signal to be short-circuited to ground by metal bolts in this fixed form, reduce the detection sensitivity of UHF coupling mechanism.
The utility model content
The purpose of the utility model provides the built-in coupler structure that a kind of GIS of measurement shelf depreciation is used; To solve existing built-in coupler structure metal bolts and induction electrode close together; Cause part UHF signal to be short-circuited to ground, reduce the problem of the detection sensitivity of UHF coupling mechanism by metal bolts.
For realizing above-mentioned purpose; The utility model adopts following technical scheme: the built-in coupling mechanism that a kind of GIS of measurement shelf depreciation is used; Comprise induction electrode and be used for fixing the insulcrete between cylindrical shell cover plate and induction electrode; Said insulcrete is provided with and is used for connecting hole that insulcrete and cylindrical shell cover plate directly are fixed together, and said induction electrode center is provided with induction electrode and the insulcrete mounting hole that is fixed together, and the center of said insulcrete is provided with electrical connector; One end of said electrical connector is connected with induction electrode, and the other end is used for being connected with cable splice.
Be provided with the set bolt that induction electrode and insulcrete are fixed together in the said mounting hole.
The diameter of said insulcrete is greater than the diameter of induction electrode, and said connecting hole is arranged at insulcrete and exceeds in the zone of induction electrode, and connecting hole is a counter bore structure, is provided with in the connecting hole to be used for insulcrete is fixed on the bolt on the cylindrical shell cover plate.
Said insulcrete center has the boss towards the induction electrode direction, and said electrical connector is arranged at the center of boss, and set set bolt is connected in an end of electrical connector and the induction electrode, and the other end is used for being connected with cable splice.
One end of said electrical connector has and is used for the mounting hole of pegging graft and to cooperate with cable splice, and the other end has and is used for the threaded hole that is threaded with the induction electrode set bolt.
The center of the said cylindrical shell cover plate that is used for being fixedly connected with insulation cover plate has the hydraucone that prevents that electrical connector is connected with the cylindrical shell cover plate.
Said cylindrical shell cover plate lower end is provided with the GIS hand hole of a cylinder-like structure, and said GIS hand hole is fixed on the cylindrical shell cover plate lower surface through flange.
Said electrical connector is the copper post.
Said insulcrete adopts poured with epoxy resin.
This coupling mechanism comprises the cable splice that is electrically connected with induction electrode.
The measurement GIS shelf depreciation of the utility model is separated fixing with the cylindrical shell cover plate insulcrete and induction electrode with built-in coupling mechanism; Connecting hole is set on the insulcrete; Insulcrete directly is fixed on the cylindrical shell cover plate; Induction electrode and insulcrete are fixed, and be electrically connected with cable splice, avoided metal bolts in the prior art pass simultaneously insulating mat with induction electrode the contacting of metal and induction electrode fixedly the time; Solve the too near problem of metal bolts and induction electrode distance, improved the detection sensitivity of UHF coupling mechanism greatly.
For making structure easier rationally; Adopt the structure of the diameter of insulcrete greater than the diameter of induction electrode; Connecting hole is arranged at insulcrete and exceeds in the zone of induction electrode, and connecting hole is a counter bore structure, is provided in the connecting hole insulcrete is fixed on the bolt on the cylindrical shell cover plate.
Contact with the cylindrical shell cover plate for fear of electrical connector and electric conduction phenomena to occur, be provided with in the center of the cylindrical shell cover plate that is fixedly connected with insulation cover plate and prevent the hydraucone that electrical connector is connected with the cylindrical shell cover plate.
Description of drawings
Fig. 1 is common built-in coupler structure figure;
Fig. 2 is the structural representation of the built-in coupling mechanism of the utility model.
Embodiment
Below in conjunction with concrete embodiment the utility model is done further introduction.
Be illustrated in figure 2 as the utility model and measure the built-in coupler structure synoptic diagram that the GIS shelf depreciation is used; Can know by figure; This coupling mechanism comprises induction electrode 12 and is used for fixing the insulcrete 13 between cylindrical shell cover plate 5 and induction electrode 12, and insulcrete 13 is provided with and is used for connecting hole 14 that insulcrete and cylindrical shell cover plate 5 directly are fixed together, and the induction electrode center is provided with induction electrode 12 and insulcrete 13 mounting hole that is fixed together; Be provided with the set bolt 10 that induction electrode and insulcrete are fixed together in the mounting hole; The center of insulcrete is provided with electrical connector 6, and an end of electrical connector is connected with induction electrode 12, and the other end is used for being connected with cable splice 4.
Be further optimization; The diameter of insulcrete 13 is greater than the diameter of induction electrode 12 in the present embodiment; Connecting hole is arranged at insulcrete and exceeds in the zone of induction electrode, and connecting hole is a counter bore structure, is provided with in the connecting hole to be used for insulcrete is fixed on the bolt 11 on the cylindrical shell cover plate.
For nearer one-step optimization, make structure advantages of simple more, the boss 8 towards the induction electrode direction is set at the insulcrete center, electrical connector 6 is arranged on the center of boss 8; One end of electrical connector 6 has and is used for the mounting hole of pegging graft and cooperating with cable splice 4, and the other end has and is used for the threaded hole that is threaded with induction electrode set bolt 10.The electrical connector of present embodiment adopts the copper post, and insulcrete adopts poured with epoxy resin.
Contact with the cylindrical shell cover plate for fear of electrical connector and electric conduction phenomena to occur, be provided with in the center of the cylindrical shell cover plate that is fixedly connected with insulation cover plate and prevent the hydraucone 15 that electrical connector is connected with the cylindrical shell cover plate.
For easy for operation, in cylindrical shell cover plate 5 lower ends a GIS hand hole 7 is set, said GIS hand hole is a cylinder-like structure, is welded on the flange 9, flange 9 is fixed on the lower surface of cylindrical shell cover plate 5.
In addition, the coupling mechanism of the utility model also comprises the cable splice 4 that is electrically connected with induction electrode.
The insulcrete 13 of the utility model also can be employed in cylindrical shell cover plate 5 with the fixed form of cylindrical shell cover plate 5 through hole is set; Connecting hole on the insulcrete 5 is set as blind hole; The through hole that utilizes a web member (can adopt bolt) to pass on the cylindrical shell cover plate is connected with blind hole on the insulcrete, thereby insulcrete 13 and cylindrical shell cover plate 5 are fixed together.
The measurement GIS shelf depreciation of the utility model is separated insulcrete and induction electrode and cylindrical shell cover plate with built-in coupling mechanism fixing, on the insulcrete 13 connecting hole is set, and insulcrete 13 directly is fixed on cylindrical shell cover plate 5; Induction electrode is fixed through set bolt 10 and insulcrete; And be electrically connected with cable splice 4, such structure has reached the utility model purpose, avoided metal bolts 1 in the prior art pass simultaneously insulating mat 3 with induction electrode 2 the contacting of metal 1 and induction electrode 2 fixedly the time; The induction electrode UHF signal that shelf depreciation produces that is used for being coupled; Insulcrete waters dress and prevents the direct ground connection of induction electrode, has solved the too near problem of metal bolts and induction electrode distance, has improved the detection sensitivity of UHF coupling mechanism greatly; For drawing of insulation between induction electrode and the ground and induced signal; Adopt epoxy resin to water and dress up an insulcrete, copper post as electrical connector 6 that size is suitable of center cast of insulcrete is used for drawing of shelf depreciation UHF signal.Because insulcrete adopts the mode of poured with epoxy resin, water package material and adopt epoxy resin and alundum (Al filler, it is reliable to water assembling structure; Sealing property and insulating property are good; It is easy for installation after being shaped, and insulating property and impermeability are good, satisfy the product request for utilization.
Claims (10)
1. measure the built-in coupling mechanism that the GIS shelf depreciation is used for one kind; Comprise induction electrode and be used for fixing the insulcrete between cylindrical shell cover plate and induction electrode; It is characterized in that: said insulcrete is provided with and is used for connecting hole that insulcrete and cylindrical shell cover plate directly are fixed together; Said induction electrode center is provided with induction electrode and the insulcrete mounting hole that is fixed together; The center of said insulcrete is provided with electrical connector, and an end of said electrical connector is connected with induction electrode, and the other end is used for being connected with cable splice.
2. the built-in coupling mechanism that measurement according to claim 1 GIS shelf depreciation is used is characterized in that: be provided with the set bolt that induction electrode and insulcrete are fixed together in the said mounting hole.
3. the built-in coupling mechanism that measurement GIS shelf depreciation according to claim 2 is used; It is characterized in that: the diameter of said insulcrete is greater than the diameter of induction electrode; Said connecting hole is arranged at insulcrete and exceeds in the zone of induction electrode; Connecting hole is a counter bore structure, is provided with in the connecting hole to be used for insulcrete is fixed on the bolt on the cylindrical shell cover plate.
4. the built-in coupling mechanism that measurement GIS shelf depreciation according to claim 3 is used; It is characterized in that: said insulcrete center has the boss towards the induction electrode direction; Said electrical connector is arranged at the center of boss; Set set bolt is connected in one end of electrical connector and the induction electrode, and the other end is used for being connected with cable splice.
5. the built-in coupling mechanism that measurement GIS shelf depreciation according to claim 4 is used; It is characterized in that: an end of said electrical connector has and is used for the mounting hole of pegging graft and to cooperate with cable splice, and the other end has and is used for the threaded hole that is threaded with the induction electrode set bolt.
6. the built-in coupling mechanism that measurement according to claim 1 GIS shelf depreciation is used is characterized in that: the center of the said cylindrical shell cover plate that is used for being fixedly connected with insulation cover plate has the hydraucone that prevents that electrical connector is connected with the cylindrical shell cover plate.
7. the built-in coupling mechanism that measurement GIS shelf depreciation according to claim 1 is used, it is characterized in that: said cylindrical shell cover plate lower end is provided with the GIS hand hole of a cylinder-like structure, and said GIS hand hole is fixed on the cylindrical shell cover plate lower surface through flange.
8. the built-in coupling mechanism that measurement GIS shelf depreciation according to claim 1 is used, it is characterized in that: said electrical connector is the copper post.
9. the built-in coupling mechanism that measurement GIS shelf depreciation according to claim 1 is used, it is characterized in that: said insulcrete adopts poured with epoxy resin.
10. according to any built-in coupling mechanism that described measurement GIS shelf depreciation is used of claim 1～9, it is characterized in that: this coupling mechanism comprises the cable splice that is electrically connected with induction electrode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201846654U CN202119867U (en) | 2011-06-02 | 2011-06-02 | Built-in coupler for measuring GIS partial discharge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201846654U CN202119867U (en) | 2011-06-02 | 2011-06-02 | Built-in coupler for measuring GIS partial discharge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202119867U true CN202119867U (en) | 2012-01-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201846654U Expired - Lifetime CN202119867U (en) | 2011-06-02 | 2011-06-02 | Built-in coupler for measuring GIS partial discharge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202119867U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102323523A (en) * | 2011-06-02 | 2012-01-18 | 平高集团有限公司 | Built-in coupler for measuring local discharge of GIS (Gas Insulated switchgear) |
| CN113791262A (en) * | 2020-12-09 | 2021-12-14 | 河南平高电气股份有限公司 | Electrified display device for GIS and GIS |
-
2011
- 2011-06-02 CN CN2011201846654U patent/CN202119867U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102323523A (en) * | 2011-06-02 | 2012-01-18 | 平高集团有限公司 | Built-in coupler for measuring local discharge of GIS (Gas Insulated switchgear) |
| WO2012162866A1 (en) * | 2011-06-02 | 2012-12-06 | 平高集团有限公司 | Built-in coupler for measuring partial discharge in gis |
| CN113791262A (en) * | 2020-12-09 | 2021-12-14 | 河南平高电气股份有限公司 | Electrified display device for GIS and GIS |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120118 |