CN106018892A - Ultrahigh frequency test shielding device of GIS - Google Patents
Ultrahigh frequency test shielding device of GIS Download PDFInfo
- Publication number
- CN106018892A CN106018892A CN201610348185.4A CN201610348185A CN106018892A CN 106018892 A CN106018892 A CN 106018892A CN 201610348185 A CN201610348185 A CN 201610348185A CN 106018892 A CN106018892 A CN 106018892A
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- China
- Prior art keywords
- metal
- opening
- insulated switchgear
- gis
- wall
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
- G01R1/18—Screening arrangements against electric or magnetic fields, e.g. against earth's field
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/12—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing
- G01R31/1227—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing of components, parts or materials
- G01R31/1254—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing of components, parts or materials of gas-insulated power appliances or vacuum gaps
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Gas-Insulated Switchgears (AREA)
Abstract
The invention discloses an ultrahigh frequency test shielding device of GIS. The shielding device comprises a metal box, a signal line shielding bushing and an annular radome, wherein the left side of the metal box is provided with an opening, the metal box is internally provided with a sensor, the left end of the signal line shielding bushing is fixedly connected to the metal box via the opening in the wall of the metal box, the side surface of the annular radome is provided with an opening, the annular radome sleeves a metal tank flange of the GIS, and the left side of the metal box is fixedly connected to the opening in the side surface of the annular radome. According to the invention, mounting and dismounting are convenient and rapid, the shielding effect is good, test signals are accurate, the labor force can be reduced, and the testing efficiency is improved.
Description
Technical field
The present invention relates to high-frequency test technical field of tools, particularly a kind of GIS gas-insulated switchgear superfrequency test screening arrangement.
Background technology
Electronic component interference to external world, electromagnetic wave can produce disturbed phenomenon with electronic component effect.Shielding is exactly to carrying out the isolation of metal between two area of space, to control electric field, magnetic field and electromagnetic wave by a region to the sensing in another region and radiation.Specifically, it is simply that be surrounded by the interference source of component, circuit, molectron, cable or whole system with shield, prevent from disturbing electromagnetic field to external diffusion；With shield, reception circuit, equipment or system are surrounded, prevent them from being affected by external electromagnetic field.Electromagnetic shielding is in order to weaken the measure of the field intensity caused by some source in certain region, space.
GIS gas-insulated switchgear in transformer station, in converting equipment, consumption is very big, and increases year by year.220kV and above transformer station mostly are GIS station, the shelf depreciation defect that the test of superfrequency shelf depreciation can effectively find within GIS device, are one of the big events of GIS device live testing.During the test of GIS device superfrequency shelf depreciation, at GIS tank body nonmetal flange insulating basin, superfrequency electromagnetic signal is accepted with sensor, this signal is likely disturbed by external electromagnetic signal, and only the outside superfrequency electromagnetic signal of shielding, could eliminate external signal interference.
Summary of the invention
The technical problem to be solved is to provide a kind of GIS gas-insulated switchgear superfrequency test screening arrangement, has simple in construction lightweight, carries easy to use, the feature of the outside superfrequency electromagnetic signal of effective shield sensor.
For solving above-mentioned technical problem, the technical solution used in the present invention is: a kind of GIS gas-insulated switchgear superfrequency test screening arrangement, including can, holding wire shielded tube and ring shielding cover；Opening have sensor internally installed on the left of described can, described holding wire shielded tube left end is connected by the perforate in metal box wall and can are fixing, the side of described ring shielding cover is provided with opening, the ring shielding enclosure is contained in the periphery of GIS gas-insulated switchgear metal can flange, fixes with the opening of ring shielding cover side and be connected on the left of can.
Improving further of being the present invention is: described ring shielding cover is that the docking of symmetrical semi-circular shape metal-back forms metal girdle, each semi-circular shape metal-back includes wall outside semicircular ring, semicircular ring top wall and semicircular ring underside wall, outside described semicircular ring, wall is connected on the extrados of semicircular ring top wall and semicircular ring underside wall, the left side of can is fixing with the opening of metal girdle side to be connected, and symmetrical semi-circular shape metal-back is sleeved on the periphery of GIS gas-insulated switchgear metal can flange by bolt docking.
Described ring shielding cover is flexible screen shield tape, and the left side of can is fixing with the opening of flexible screen shield tape side to be connected, and the termination of flexible screen shield tape is sleeved on the periphery of GIS gas-insulated switchgear metal can flange by the docking of bolt clamp.
Use and have the beneficial effects that produced by technique scheme: the holding wire shielded tube of the present invention is fixing with can be connected, in advance sensor can be fixed in can, sensor signal lines is connected through holding wire shielded tube with sensor, every time during test signal, can use as long as the ring shielding enclosure is contained in GIS gas-insulated switchgear metal can flange periphery.Symmetrical semi-circular shape metal-back docks convenient and swift by bolt, and flexible screen shield tape is docked by bolt clamp, is adapted to the GIS gas-insulated switchgear metal can flange of different-diameter.Easy installation and removal of the present invention is quick, and shield effectiveness is good, and test signal is accurate, can reduce labor intensity, and improves testing efficiency.
Accompanying drawing explanation
Fig. 1 is the structural representation of embodiments of the invention 1；
Fig. 2 is the A-A sectional drawing in Fig. 1；
Fig. 3 is the B-B sectional drawing in Fig. 1；
Fig. 4 is the mounting structure schematic diagram of embodiment 1；
Fig. 5 is the C portion enlarged drawing in Fig. 4；
Fig. 6 is the structural representation of embodiments of the invention 2；
Fig. 7 is the mounting structure schematic diagram of embodiment 2.
Parts and label thereof as shown in the figure: the conductor 12 in wall 1, semicircular ring top wall 2, holding wire shielded tube 3, sensor signal lines 4, can 5, semi-circular shape metal-back joint 6, bolt 7, semicircular ring underside wall 8, opening 9, sensor 10, GIS gas-insulated switchgear metal can flange 11, GIS gas-insulated switchgear, non-metallic insulation basin 13, bolt clamp 14, flexible screen shield tape 15 outside semicircular ring.
Detailed description of the invention
Embodiment 1: a kind of GIS gas-insulated switchgear superfrequency test screening arrangement, including can 5, holding wire shielded tube 3 and ring shielding cover；Opening have sensor 10 internally installed on the left of described can 5, described holding wire shielded tube 3 left end is connected by the perforate on can 5 wall is fixing with can 5, the side of described ring shielding cover is provided with opening 9, the ring shielding enclosure is contained in the periphery of GIS gas-insulated switchgear metal can flange 11, fixes with the opening 9 of ring shielding cover side and be connected on the left of can 5.Described ring shielding cover is that the docking of symmetrical semi-circular shape metal-back forms metal girdle, each semi-circular shape metal-back includes wall 1 outside semicircular ring, semicircular ring top wall 2 and semicircular ring underside wall 8, outside described semicircular ring, wall 1 is connected on the extrados of semicircular ring top wall 2 and semicircular ring underside wall 8, the left side of can 5 is fixing with the opening 9 of metal girdle side to be connected, and symmetrical semi-circular shape metal-back is sleeved on the periphery of GIS gas-insulated switchgear metal can flange 11 by bolt 7 docking.
The metal materials such as symmetrical semi-circular shape metal-back shield available copper, aluminum, steel are made.
Embodiment 2: a kind of GIS gas-insulated switchgear superfrequency test screening arrangement, including can 5, holding wire shielded tube 3 and ring shielding cover；Opening have sensor 10 internally installed on the left of described can 5, described holding wire shielded tube 3 left end is connected by the perforate on can 5 wall is fixing with can 5, the side of described ring shielding cover is provided with opening 9, the ring shielding enclosure is contained in the periphery of GIS gas-insulated switchgear metal can flange 11, fixes with the opening 9 of ring shielding cover side and be connected on the left of can 5.Described ring shielding cover is flexible screen shield tape 15, and the left side of can 5 is fixing with the opening 9 of flexible screen shield tape 15 side to be connected, and the termination of flexible screen shield tape 15 is sleeved on the periphery of GIS gas-insulated switchgear metal can flange 11 by bolt clamp 14 docking.
Flange 11 periphery of GIS gas-insulated switchgear metal can is all covered by flexible screen shield tape 15.Flexible screen shield tape 15 usable fibers braid over braid makes, fiber woven belt sprays screening conductive paint, screening conductive paint is added in specific resin raw material by conductive metal powder exactly, it is made to the paint of spraying, screening conductive paint is dried and forms the effect that can play conduction after paint film, thus the function of shielding electromagnetic interference.
Claims (3)
1. a GIS gas-insulated switchgear superfrequency test screening arrangement, it is characterised in that: include can (5), holding wire shielded tube (3) and ring shielding cover；Described can (5) left side opening also has sensor (10) internally installed, described holding wire shielded tube (3) left end is connected by the perforate on can (5) wall and can (5) are fixing, the side of described ring shielding cover is provided with opening (9), the ring shielding enclosure is contained in the periphery of GIS gas-insulated switchgear metal can flange (11), and can (5) left side is fixing with the opening (9) of ring shielding cover side to be connected.
A kind of GIS gas-insulated switchgear superfrequency test screening arrangement the most according to claim 1, it is characterized in that: described ring shielding cover is that the docking of symmetrical semi-circular shape metal-back forms metal girdle, each semi-circular shape metal-back includes wall outside semicircular ring (1), semicircular ring top wall (2) and semicircular ring underside wall (8), outside described semicircular ring, wall (1) is connected on the extrados of semicircular ring top wall (2) and semicircular ring underside wall (8), the left side of can (5) is fixing with the opening (9) of metal girdle side to be connected, symmetrical semi-circular shape metal-back is sleeved on the periphery of GIS gas-insulated switchgear metal can flange (11) by bolt (7) docking.
A kind of GIS gas-insulated switchgear superfrequency test screening arrangement the most according to claim 1, it is characterized in that: described ring shielding cover is flexible screen shield tape (15), the left side of can (5) is fixing with the opening (9) of flexible screen shield tape (15) side to be connected, and the termination of flexible screen shield tape (15) is sleeved on the periphery of GIS gas-insulated switchgear metal can flange (11) by bolt clamp (14) docking.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610348185.4A CN106018892B (en) | 2016-05-24 | 2016-05-24 | A kind of GIS gas-insulated switchgear superfrequency test screening arrangement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610348185.4A CN106018892B (en) | 2016-05-24 | 2016-05-24 | A kind of GIS gas-insulated switchgear superfrequency test screening arrangement |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106018892A true CN106018892A (en) | 2016-10-12 |
| CN106018892B CN106018892B (en) | 2019-06-07 |
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| CN201610348185.4A Active CN106018892B (en) | 2016-05-24 | 2016-05-24 | A kind of GIS gas-insulated switchgear superfrequency test screening arrangement |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109375063A (en) * | 2018-11-26 | 2019-02-22 | 广东电网有限责任公司 | Fault traveling wave signal coupling sensor for online fault location device |
| CN110045255A (en) * | 2019-05-28 | 2019-07-23 | 杭州隽珀科技有限公司 | A kind of highly-safe local discharge sensor installation equipment |
| CN112557852A (en) * | 2020-12-17 | 2021-03-26 | 广东电网有限责任公司中山供电局 | Partial discharge ultrahigh frequency signal shielding device for GIS equipment grounding leading-out row |
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| JPH06222086A (en) * | 1993-01-22 | 1994-08-12 | Takaoka Electric Mfg Co Ltd | Single-phase voltage detector |
| JP2600985B2 (en) * | 1990-06-28 | 1997-04-16 | 三菱電機株式会社 | Gas insulated switchgear |
| JPH09191533A (en) * | 1996-01-11 | 1997-07-22 | Mitsubishi Electric Corp | Gas-insulated bus apparatus |
| CN201430393Y (en) * | 2009-06-16 | 2010-03-24 | 马鞍山市华能电力线路器材有限责任公司 | Tubular bus bar annular fixed line clamp capable of automatically shielding |
| CN202421423U (en) * | 2011-12-07 | 2012-09-05 | 宁波理工监测科技股份有限公司 | Gas insulated switchgear (GIS) partial discharge detection device for shielding insulation basin |
| CN202994964U (en) * | 2012-12-29 | 2013-06-12 | 内蒙古自治区电力科学研究院 | UHF partial discharge sensor capable of closely cooperating with GIS basin-type insulator |
| CN203164364U (en) * | 2013-04-23 | 2013-08-28 | 四川菲博斯科技有限责任公司 | GIS partial discharge monitoring device with built-in ultrahigh frequency sensor |
| CN204594903U (en) * | 2015-05-13 | 2015-08-26 | 广东华泰检测科技有限公司 | A kind of novel gamma-ray testing apparatus |
| CN204649795U (en) * | 2015-04-30 | 2015-09-16 | 国家电网公司 | The online charged shelf depreciation test radome of GIS |
-
2016
- 2016-05-24 CN CN201610348185.4A patent/CN106018892B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2600985B2 (en) * | 1990-06-28 | 1997-04-16 | 三菱電機株式会社 | Gas insulated switchgear |
| JPH06222086A (en) * | 1993-01-22 | 1994-08-12 | Takaoka Electric Mfg Co Ltd | Single-phase voltage detector |
| JPH09191533A (en) * | 1996-01-11 | 1997-07-22 | Mitsubishi Electric Corp | Gas-insulated bus apparatus |
| CN201430393Y (en) * | 2009-06-16 | 2010-03-24 | 马鞍山市华能电力线路器材有限责任公司 | Tubular bus bar annular fixed line clamp capable of automatically shielding |
| CN202421423U (en) * | 2011-12-07 | 2012-09-05 | 宁波理工监测科技股份有限公司 | Gas insulated switchgear (GIS) partial discharge detection device for shielding insulation basin |
| CN202994964U (en) * | 2012-12-29 | 2013-06-12 | 内蒙古自治区电力科学研究院 | UHF partial discharge sensor capable of closely cooperating with GIS basin-type insulator |
| CN203164364U (en) * | 2013-04-23 | 2013-08-28 | 四川菲博斯科技有限责任公司 | GIS partial discharge monitoring device with built-in ultrahigh frequency sensor |
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| CN204594903U (en) * | 2015-05-13 | 2015-08-26 | 广东华泰检测科技有限公司 | A kind of novel gamma-ray testing apparatus |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109375063A (en) * | 2018-11-26 | 2019-02-22 | 广东电网有限责任公司 | Fault traveling wave signal coupling sensor for online fault location device |
| CN110045255A (en) * | 2019-05-28 | 2019-07-23 | 杭州隽珀科技有限公司 | A kind of highly-safe local discharge sensor installation equipment |
| CN110045255B (en) * | 2019-05-28 | 2020-05-26 | 电管家集团有限公司 | High partial discharge sensor erection equipment of security |
| CN112557852A (en) * | 2020-12-17 | 2021-03-26 | 广东电网有限责任公司中山供电局 | Partial discharge ultrahigh frequency signal shielding device for GIS equipment grounding leading-out row |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106018892B (en) | 2019-06-07 |
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