CN113702781A - GIS equipment partial discharge detection device - Google Patents
GIS equipment partial discharge detection device Download PDFInfo
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- CN113702781A CN113702781A CN202110986017.9A CN202110986017A CN113702781A CN 113702781 A CN113702781 A CN 113702781A CN 202110986017 A CN202110986017 A CN 202110986017A CN 113702781 A CN113702781 A CN 113702781A
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- gis equipment
- gis
- partial discharge
- discharge detection
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- 238000001514 detection method Methods 0.000 title claims abstract description 30
- 230000007246 mechanism Effects 0.000 claims abstract description 34
- 230000001681 protective effect Effects 0.000 claims abstract description 26
- 238000001125 extrusion Methods 0.000 claims description 14
- 230000008878 coupling Effects 0.000 claims description 3
- 238000010168 coupling process Methods 0.000 claims description 3
- 238000005859 coupling reaction Methods 0.000 claims description 3
- 239000007787 solid Substances 0.000 description 5
- 239000002184 metal Substances 0.000 description 4
- 238000009413 insulation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000003139 buffering effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 238000003745 diagnosis Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000002243 precursor Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 210000003813 thumb Anatomy 0.000 description 1
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Classifications
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- 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
Abstract
The invention discloses a GIS equipment partial discharge detection device, which comprises a rectangular protective frame, wherein two sides of the protective frame are respectively provided with a positioning mechanism for limiting the position of GIS equipment; and the protective frame is provided with an adjusting mechanism for adjusting the position of each detector. The adjusting mechanism provided by the invention can adjust the positions of the detectors according to the needs, and the detectors can simultaneously detect the positions of the GIS equipment on line, so that the detection missing probability is reduced, the GIS equipment detecting device can adapt to the detection work of the GIS equipment in different environments, and the application range of the GIS equipment detecting device is enlarged.
Description
Technical Field
The invention relates to the technical field of GIS equipment fault diagnosis, in particular to a GIS equipment partial discharge detection device.
Background
The gas insulated metal enclosed switchgear (GIS) is widely popularized and applied in the power industry by virtue of its advantages, and the GIS is composed of a circuit breaker, a disconnecting switch, a grounding switch, a mutual inductor, a lightning arrester, a bus, a connecting piece, an outgoing line terminal and the like, all of the devices or components are enclosed in a metal grounded shell, and SF6 insulating gas with certain pressure is filled in the metal grounded shell, so that the gas insulated metal enclosed switchgear is also called as an SF6 totally enclosed combined electrical appliance. However, due to the compact structure, once a fault occurs, the fault is easy to spread to adjacent intervals, so that the accident is enlarged, and along with the social and economic development, the requirements on the power supply reliability and safety are higher and higher.
The main reason causing the GIS accident is insulation fault, partial discharge is usually the precursor of the insulation fault, if the potential partial discharge hidden danger can be found in advance, the accident can be prevented, and the operation reliability is improved. The existing device for detecting the partial discharge of the GIS equipment mostly only sets one detector on the GIS equipment, the working environment of the GIS equipment possibly has external signal interference, the detector has hidden danger of missed detection, and the working environment of each group of GIS equipment is different, so that the GIS equipment cannot be adapted to online detection in different environments.
Disclosure of Invention
The technical problem to be solved by the invention is to provide a GIS equipment partial discharge detection device, which is used for solving the problem of hidden detection leakage of a detector in the existing GIS equipment partial discharge detection device, so that the position of the detector can be adjusted, a plurality of detectors can simultaneously detect all positions of the GIS equipment on line, and the probability of detection leakage is reduced.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows.
A GIS equipment partial discharge detection device comprises a rectangular protective frame, wherein positioning mechanisms for limiting the position of GIS equipment are respectively arranged on two sides of the protective frame; the protective frame is provided with an adjusting mechanism for adjusting the position of each detector; the locating ring subassembly is including setting up rotatable ring and the interior lantern ring inside the protective frame respectively, but the interior lantern ring is fixed the cover through the connective bar and is established in the inside of rotatable ring.
Further optimize technical scheme, the holding ring subassembly is including setting up rotatable ring and the interior lantern ring inside the protective frame respectively, and the fixed cover of interior lantern ring is established in the inside of rotatable ring.
According to the technical scheme, the adjusting mechanism comprises an axial adjusting mechanism used for adjusting the position of the detector pointing to the axis of the GIS equipment and a circumferential adjusting mechanism used for adjusting the position of the detector along the circumferential direction of the GIS equipment.
Further optimize technical scheme, axial adjustment mechanism includes that the screw rod and the setting of setting between adjusting screw rod and detector are crossed to the screw thread respectively but the adjusting screw rod of rotating ring and interior lantern ring.
Further optimize technical scheme, buffering subassembly is including connecting locating plate, the fixed connection that stretches into the inboard one end of interior lantern ring at adjusting screw and stretching into the extrusion spring and the fixed cover of lantern ring in the locating plate towards one side of interior lantern ring center and establishing at the outside solid piece of extrusion spring, and interior solid piece is fixed towards one side of interior lantern ring center and is provided with the arc, and the detector location sets up at the arc.
According to the technical scheme, a sliding rod which penetrates through the positioning plate in a sliding mode is connected and arranged on the side face, far away from the center of the inner sleeve ring, of the inner fixing block, and a limiting block is fixedly connected to one end, far away from the inner fixing block, of the sliding rod.
The technical scheme is further optimized, a plurality of inner support rods which are respectively matched with the adjusting screw in a threaded manner are fixedly arranged on the inner side wall of the inner lantern ring; one end of each adjusting screw rod positioned outside the rotatable ring is respectively connected with a hand-pulling wheel.
Further optimize technical scheme, circumference adjustment mechanism is including seting up the mounting groove on the protective frame lateral wall, rotating the driving gear that sets up in the mounting groove and set up on rotatable ring excircle lateral wall and with the external ring gear of driving gear engaged with, driving gear coaxial coupling has the crank of rotation setting on the protective frame.
According to the technical scheme, the positioning mechanism comprises outriggers symmetrically arranged on two sides of the protective frame, and each outrigger is provided with a ferrule which can be detached and used for positioning the GIS equipment.
Due to the adoption of the technical scheme, the technical progress of the invention is as follows.
The adjusting mechanism provided by the invention can adjust the positions of the detectors according to the needs, and the detectors can simultaneously detect the positions of the GIS equipment on line, so that the detection missing probability is reduced, the GIS equipment detecting device can adapt to the detection work of the GIS equipment in different environments, and the application range of the GIS equipment detecting device is enlarged.
According to the GIS equipment fixing device, the fixing ferrules with the inner diameter length equal to the outer diameter length of the GIS equipment are selected, the fixing ferrules on the two sides of the protecting frame are attached to the outside of the GIS equipment, and the two outer patches attached to the fixing ferrules are fixed through the bolts and the nuts, so that the GIS equipment can be stably positioned on the protecting frame, the two fixing ferrules matched with each other are perfectly attached to the GIS equipment, and the stability of the protecting frame is guaranteed.
According to the invention, the hand-pulling wheel is rotated to enable the adjusting screw rod to rotate along with the hand-pulling wheel, so that the positioning plate, the extrusion spring and the internal fixing block are driven to approach towards the GIS equipment, the detector is tightly connected with the GIS equipment, the problem of damage caused by extrusion is avoided, the stability of the detector is ensured and the detector is always attached to the GIS equipment, even if the GIS equipment shakes, the detector can normally detect the GIS equipment, the detection is more accurate, and the separation phenomenon caused by long service time is avoided.
Drawings
FIG. 1 is a schematic external view of the present invention;
FIG. 2 is a cross-sectional view of the present invention;
fig. 3 is a cross-sectional view of an adjustment mechanism of the present invention.
Wherein: 1. a protective frame; 2. a rotatable ring; 3. an inner collar; 4. a detector; 5. an outrigger; 6. fixing the ferrule; 7. an outer patch; 8. a driving gear; 9. a hand crank; 10. an external toothed ring; 11. adjusting the screw rod; 12. a hand-pulling wheel; 13. an inner support rod; 14. positioning a plate; 15. a compression spring; 16. an inner fixing block; 17. an arc-shaped plate; 18. a slide bar; 19. a limiting block; 20. and (4) connecting the rods.
Detailed Description
The invention will be described in further detail below with reference to the figures and specific examples.
A GIS equipment partial discharge detection device is shown in combination with figures 1-3 and comprises a protective frame 1, a positioning mechanism, a positioning ring assembly, a detector 4 and an adjusting mechanism.
The protection frame 1 is rectangular, and the two sides of the protection frame 1 are respectively provided with a positioning mechanism which is used for limiting the position of the GIS equipment.
The positioning mechanism comprises an outrigger 5 and a ferrule. The two outriggers 5 are symmetrically arranged on two sides of the protective frame 1. Each outrigger 5 is provided with a detachable ferrule for positioning the GIS device. Each ferrule comprises two fixed ferrules 6, each outrigger 5 is divided into an upper part and a lower part, and the two fixed ferrules 6 are respectively connected with the opposite ends of the upper outrigger 5 and the lower outrigger 5.
Two fixed lassos 6 set up in opposite directions, and fixed connection has outer paster 7 respectively on two fixed lassos 6's the opposite face, fixes through bolt and nut between two outer pasters 7.
In the prior art, most of GIS equipment (the part to be detected) is in a cylindrical structure, so that two fixing ferrules 6 with proper inner diameters can be perfectly attached to the outside of the GIS equipment, and the inner diameters of the fixing ferrules 6 can be determined according to the outer diameters of the detected parts of the GIS equipment, so that the structure of the protective frame 1 is stable.
The inside of protective frame 1 is provided with the locating ring subassembly, and detector 4 is provided with a plurality of, and each detector 4 circumference sets up on the locating ring subassembly. In the invention, the number of the detectors 4 and other structures matched with the detectors 4 is three, and more detectors, such as four or five detectors, can be designed during actual design so as to meet the requirements of different GIS devices or different scenes. The detector 4 can be a very high frequency sensor (model can be selected from VM-351 and 401-S4) or an ultrasonic sensor (model can be selected from UC6000-30GM-IUR 2-V15).
The holding ring subassembly is including setting up rotatable ring 2 and the interior lantern ring 3 inside protecting frame 1 respectively, and the fixed cover of interior lantern ring 3 is established in the inside of rotatable ring 2. Interior lantern ring 3 is through three connective bar 20 and rotatable ring 2 fixed connection, and connective bar 20 both ends respectively with rotatable ring 2 and interior lantern ring 3 welded fastening.
The protection frame 1 is provided with an adjustment mechanism for adjusting the position of each detector 4. The adjusting mechanism comprises an axial adjusting mechanism and a circumferential adjusting mechanism. The axial adjusting mechanism is used for adjusting the position of the detector 4 pointing to the axis of the GIS equipment. The circumferential adjusting mechanism is used for adjusting the circumferential position of the detector 4 along the GIS equipment.
The invention is provided with three groups of axial adjusting mechanisms which are respectively arranged in the protective frame 1, and each axial adjusting mechanism comprises an adjusting screw rod 11 and a buffer component. The adjusting screw 11 is threaded through the rotatable ring 2 and the inner collar 3, respectively. The damping assembly is disposed between the adjustment screw 11 and the detector 4.
The inner side wall of the inner lantern ring 3 is fixedly provided with a plurality of inner supporting rods 13 which are respectively assembled with the adjusting screw 11 in a threaded mode, and the inner supporting rods 13 arranged in the adjusting screw rod structure enable the adjusting screw 11 to be more stable in structure. One end of each adjusting screw rod 11 positioned outside the rotatable ring 2 is respectively connected with a hand-shifting wheel 12, and the adjusting screw rods 11 can be driven to rotate when the hand-shifting wheels 12 are rotated.
The buffer assembly comprises a positioning plate 14, an extrusion spring 15, an inner fixed block 16 and an arc-shaped plate 17. The positioning plate 14 is connected with one end of the adjusting screw 11 extending into the inner lantern ring 3. The pressing spring 15 is fixedly connected to a side surface of the positioning plate 14 facing the center of the inner collar 3. The fixed cover of interior solid piece 16 is established outside extrusion spring 15, and solid piece 16 including the other end of extrusion spring 15 is fixed to be set up, and interior solid piece 16 is fixed towards interior lantern ring 3 center side and is provided with arc 17, and detector 4 location sets up on arc 17.
In order to enable the inner fixed block 16 to elastically stretch and retract along one direction only, avoid the displacement of the detector 4 and enable the structure of the detector 4 to be stable, two sliding rods 18 which penetrate through the positioning plate 14 in a sliding mode are connected and arranged on the side face, far away from the center of the inner lantern ring 3, of the inner fixed block 16, the two sliding rods 18 are arranged, and one ends, far away from the inner fixed block 16, of the two sliding rods 18 are fixedly connected with limiting blocks 19. The arranged extrusion spring 15 enables the inner fixed block 16 to have certain elasticity, and the sliding rod 18 is matched with the limiting block 19, so that the inner fixed block 16 can elastically stretch and retract along one direction.
The buffer assembly arranged in the invention can avoid direct damage caused by overlarge extrusion force when the detector 4 is contacted and fixed with the GIS equipment, and the GIS equipment can generate slight vibration due to various reasons in the using process, so the arrangement of the extrusion spring 15 further reduces the probability of damaging the detector 4.
The circumferential adjusting mechanism comprises an installation groove, a driving gear 8, an external gear ring 10 and a hand crank 9. The mounting groove runs through and sets up on protection frame 1 lateral wall. The driving gear 8 is rotatably arranged in the mounting groove through a transverse shaft, and the transverse shaft is rotatably arranged on the protective frame 1 through a bearing, so that the driving gear 8 can stably rotate. External ring gear 10 sets up on rotatable 2 excircle lateral walls of ring to mesh mutually with driving gear 8, driving gear 8 coaxial coupling has crank 9, and crank 9 rotates and sets up on protective frame 1.
When the GIS equipment is positioned and a cylindrical pipeline of the GIS equipment is installed (usually, one section of the cylindrical pipeline is spliced), the inner sleeve ring 3 is sleeved outside the GIS equipment, the fixed sleeve rings 6 with the inner diameter length equal to the outer diameter length of the GIS equipment are selected, the fixed sleeve rings 6 on two sides of the protective frame 1 are both attached to the outside of the GIS equipment, and the outer attaching pieces 7 attached to the same ends of the two fixed sleeve rings 6 are fixed by a plurality of bolts and nuts, so that the two mutually matched fixed sleeve rings 6 are perfectly attached to the GIS equipment, the stability of the protective frame 1 is ensured, and the GIS equipment is effectively positioned.
When the discharge detection is carried out on the GIS equipment, the plurality of hand-operated wheels 12 are manually rotated to enable the adjusting screw rods 11 connected with the hand-operated wheels to rotate and move towards the center of the inner lantern ring 3, so that the positioning plates 14, the extrusion springs 15, the inner fixed blocks 16 and the arc-shaped plates 17 connected with the hand-operated wheels are driven to be close to the outer wall of the GIS equipment. When the detector 4 is engaged with the outer wall of the GIS device, the pressing spring 15 is first compressed and the two sliding rods 18 slide a small distance along the positioning plate 14. Then personnel need stall hand thumb wheel 12, under extrusion spring 15 effects, detector 4 can be pressed close to with GIS equipment to carry out on-line measuring, on-line measuring's principle is: the method is used for detecting ultrahigh frequency electromagnetic wave (300M-3000MHz) signals generated by partial discharge in the power equipment to obtain related discharge information, realizes partial discharge detection, and can also perform normal online detection when the GIS equipment generates certain vibration.
The invention can also adjust the position of each detector 4, before the axial adjustment of a plurality of detectors 4, the hand crank 9 is manually held and rotated to rotate the driving gear 8, so as to drive the external gear ring 10 to rotate, further drive the rotatable ring 2 and the internal lantern ring 3 to rotate, change the positions of the plurality of detectors 4, and enable the plurality of detectors 4 to adapt to the partial discharge detection of GIS equipment in different environments. After circumferential position adjustment is carried out on each detector 4, each hand-dialing wheel 12 is turned by a hand, positioning between each detector 4 and GIS equipment is achieved, and then partial discharge detection is carried out.
Claims (8)
1. The utility model provides a GIS equipment partial discharge detection device which characterized in that: the GIS equipment protection device comprises a rectangular protection frame (1), wherein two sides of the protection frame (1) are respectively provided with a positioning mechanism for limiting the position of GIS equipment, a positioning ring assembly is arranged inside the protection frame (1), and a plurality of detectors (4) are circumferentially arranged on the positioning ring assembly; the protective frame (1) is provided with an adjusting mechanism for adjusting the position of each detector (4); the locating ring assembly comprises a rotatable ring (2) and an inner lantern ring (3) which are arranged inside the protective frame (1) respectively, and the inner lantern ring (3) is fixedly sleeved inside the rotatable ring (2) through a connecting rod (20).
2. The GIS device partial discharge detection device of claim 1, characterized in that: the adjusting mechanism comprises an axial adjusting mechanism used for adjusting the position of the detector (4) pointing to the axis of the GIS equipment and a circumferential adjusting mechanism used for adjusting the circumferential position of the detector (4) along the GIS equipment.
3. The GIS device partial discharge detection device of claim 2, wherein: the axial adjusting mechanism comprises an adjusting screw rod (11) which respectively penetrates through the rotatable ring (2) and the inner lantern ring (3) in a threaded mode and a buffer assembly arranged between the adjusting screw rod (11) and the detector (4).
4. The GIS device partial discharge detection device of claim 3, characterized in that: the buffer assembly comprises a positioning plate (14) connected to one end of the inner side of the adjusting screw rod (11) extending into the inner side of the inner sleeve ring (3), an extrusion spring (15) fixedly connected to one side of the center of the inner sleeve ring (3) of the positioning plate (14) and an inner fixing block (16) fixedly arranged outside the extrusion spring (15), the inner fixing block (16) is fixedly provided with an arc plate (17) towards one side of the center of the inner sleeve ring (3), and the detector (4) is positioned on the arc plate (17).
5. The GIS device partial discharge detection device of claim 4, wherein: the side surface of the inner fixed block (16) far away from the center of the inner lantern ring (3) is connected with a sliding rod (18) which penetrates through the positioning plate (14) in a sliding mode, and one end, far away from the inner fixed block (16), of the sliding rod (18) is fixedly connected with a limiting block (19).
6. The GIS device partial discharge detection device of claim 2, wherein: a plurality of inner supporting rods (13) which are respectively in threaded fit with the adjusting screw rods (11) are fixedly arranged on the inner side wall of the inner lantern ring (3); one end of each adjusting screw rod (11) positioned outside the rotatable ring (2) is respectively connected with a hand-pulling wheel (12).
7. The GIS device partial discharge detection device of claim 2, wherein: the circumference adjustment mechanism includes offer mounting groove on protective frame (1) lateral wall, rotate driving gear (8) that set up in the mounting groove and set up on rotatable ring (2) excircle lateral wall and with external ring gear (10) of driving gear (8) engaged with, driving gear (8) coaxial coupling has crank (9) of rotation setting on protective frame (1).
8. The GIS device partial discharge detection device of claim 1, characterized in that: the positioning mechanism comprises outriggers (5) symmetrically arranged on two sides of the protective frame (1), and each outrigger (5) is provided with a ferrule which can be detached and used for positioning GIS equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110986017.9A CN113702781A (en) | 2021-08-26 | 2021-08-26 | GIS equipment partial discharge detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110986017.9A CN113702781A (en) | 2021-08-26 | 2021-08-26 | GIS equipment partial discharge detection device |
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| CN113702781A true CN113702781A (en) | 2021-11-26 |
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| CN202110986017.9A Pending CN113702781A (en) | 2021-08-26 | 2021-08-26 | GIS equipment partial discharge detection device |
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| CN212255552U (en) * | 2020-05-21 | 2020-12-29 | 隋爱妮 | Insulation inspection device of oil field oil extraction equipment |
| CN113108890A (en) * | 2021-04-01 | 2021-07-13 | 许昌学院 | Vibration detection device convenient to adjust for engineering mechanics experiments |
| CN213750171U (en) * | 2020-12-08 | 2021-07-20 | 江苏海立普电力科技有限公司 | GIS partial discharge detection system |
| CN213903700U (en) * | 2020-10-30 | 2021-08-06 | 国网河北省电力有限公司曲周县供电分公司 | Insulation detection device of electroscope insulating rod for electric power inspection |
| CN216434260U (en) * | 2021-08-26 | 2022-05-03 | 河北建投能源科学技术研究院有限公司 | GIS equipment partial discharge detection device |
-
2021
- 2021-08-26 CN CN202110986017.9A patent/CN113702781A/en active Pending
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| JPH06174778A (en) * | 1992-12-03 | 1994-06-24 | Mitsubishi Electric Corp | Partial discharge detector |
| KR100861442B1 (en) * | 2007-05-30 | 2008-10-02 | 주식회사 효성 | Structure for mounting external type sensor for measuring partial discharge of gas insulating opening/closing apparatus |
| CN103376170A (en) * | 2012-04-17 | 2013-10-30 | 陈津 | Structure of built-in temperature sensor of high voltage GIS |
| US20160231286A1 (en) * | 2015-02-09 | 2016-08-11 | Sichuan University | Adjustable fixing device for acoustic emission test sensors for rock damage testing |
| KR101665458B1 (en) * | 2016-04-19 | 2016-10-24 | (주)원광전기 | Fixing apparatus for external diagnosis partial discharge sensor installed at the outside |
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| CN110849969A (en) * | 2019-11-14 | 2020-02-28 | 国网新疆电力有限公司电力科学研究院 | Scanning device for detecting GIS shell annular welding line on site |
| CN212255552U (en) * | 2020-05-21 | 2020-12-29 | 隋爱妮 | Insulation inspection device of oil field oil extraction equipment |
| CN111504498A (en) * | 2020-06-01 | 2020-08-07 | 宁波市电力设计院有限公司 | GIS isolator contact temperature on-line monitoring system |
| CN111720748A (en) * | 2020-07-10 | 2020-09-29 | 国网宁夏电力有限公司电力科学研究院 | Full-automatic GIS vibration detection system |
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| CN213750171U (en) * | 2020-12-08 | 2021-07-20 | 江苏海立普电力科技有限公司 | GIS partial discharge detection system |
| CN113108890A (en) * | 2021-04-01 | 2021-07-13 | 许昌学院 | Vibration detection device convenient to adjust for engineering mechanics experiments |
| CN216434260U (en) * | 2021-08-26 | 2022-05-03 | 河北建投能源科学技术研究院有限公司 | GIS equipment partial discharge detection device |
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