CN112540277B - GIS ultrahigh frequency partial discharge signal detection device for shielding external interference - Google Patents
GIS ultrahigh frequency partial discharge signal detection device for shielding external interference Download PDFInfo
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- CN112540277B CN112540277B CN202011274312.3A CN202011274312A CN112540277B CN 112540277 B CN112540277 B CN 112540277B CN 202011274312 A CN202011274312 A CN 202011274312A CN 112540277 B CN112540277 B CN 112540277B
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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
- G01R31/16—Construction of testing vessels; Electrodes therefor
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Abstract
The invention discloses a GIS ultrahigh frequency partial discharge signal detection device for shielding external interference, which comprises: the device comprises a protective box, wherein a plurality of groups of partition boards are arranged in the protective box, a mounting mechanism is arranged on the partition boards close to the top end of the protective box, a GIS discharge signal detector is arranged on the mounting mechanism, and a pressing device for limiting the longitudinal position of the GIS discharge signal detector is fixedly arranged on the inner top surface of the protective box; and the signal acquisition device. According to the GIS ultrahigh frequency partial discharge signal detection device for shielding external interference, the microstrip patch antenna is arranged on the shielding shell, so that the installation and the disassembly of people are facilitated, the shielding shell is not required to be installed by a tool, the disassembly of people is facilitated, the mounting plate can be directly pulled out, the peripheral space is enlarged, the wiring of people is facilitated, the position of the GIS discharge signal detector can be limited, the stability of the GIS discharge signal detector is improved, and a better use prospect is brought.
Description
Technical Field
The invention relates to the field of local discharge monitoring of power equipment, in particular to a GIS ultrahigh frequency local discharge signal detection device for shielding external interference.
Background
In recent years, with the increase of the number of GIS (gas insulated fully-enclosed combined electrical apparatus), partial discharge is a main factor for causing GIS insulation accidents because the GIS can generate partial discharge under the action of a strong electric field, so that the partial discharge of the GIS is monitored, the insulation defect problem in the GIS can be discovered earlier, so that proper measures can be taken to cope with the problem, and the GIS equipment has important significance for safe and stable operation;
the existing GIS ultrahigh frequency partial discharge signal detection device has certain defects when in use, the sensor is fixed on the GIS shell when the existing GIS ultrahigh frequency partial discharge signal detection device is used, the protective shell is additionally arranged, but the existing shielding shell and the sensor are independently installed, different tools are needed, the installation and the disassembly are inconvenient, the GIS ultrahigh frequency partial discharge signal detector is installed inside a cabinet body, the volume of the cabinet body is limited, the installation and the wiring are inconvenient, and the use requirements of people cannot be met.
Disclosure of Invention
The invention mainly aims to provide a GIS ultrahigh frequency partial discharge signal detection device for shielding external interference, which can effectively solve the problems in the background technology.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows:
a GIS ultrahigh frequency partial discharge signal detection device for shielding external interference comprises:
the device comprises a protective box, wherein a plurality of groups of partition boards are arranged in the protective box, a mounting mechanism is arranged on the partition boards close to the top end of the protective box, a GIS discharge signal detector is arranged on the mounting mechanism, and a pressing device for limiting the longitudinal position of the GIS discharge signal detector is fixedly arranged on the inner top surface of the protective box; and
the signal acquisition device comprises a shielding shell, a shielding box, a limiting mechanism and a microstrip patch antenna, wherein the limiting mechanism and the microstrip patch antenna are both positioned inside the shielding shell, the microstrip patch antenna is arranged on the limiting mechanism, the shielding box is arranged on the outer surface of the shielding shell, a cable connector is arranged on the shielding box, and the microstrip patch antenna is connected with a GIS discharge signal detector through a cable and the cable connector.
Preferably, the stop gear includes arc limiting plate and a spring, the surface that the arc limiting plate is close to the shielding case passes through a spring and shielding case's internal surface fixed connection, the mounting groove has been seted up on the surface that the arc limiting plate kept away from a spring, microstrip patch antenna fixed mounting is in the inside of mounting groove.
Preferably, the shielding shell comprises two groups of half shells, wherein one group of half shells is provided with a plurality of groups of limiting parts, the other group of half shells are provided with a plurality of groups of limiting holes, and the limiting parts penetrate through the limiting holes and are clamped with the limiting holes.
Preferably, the limiting piece comprises a central column and a plurality of groups of limiting elastic pieces, one ends of the limiting elastic pieces are connected with one end of the central column, and one end, far away from the central column, of the limiting elastic pieces is stepped.
Preferably, the installation mechanism comprises an installation plate and a fixing device, sliding grooves are formed in positions, close to two ends, of the outer surface of the upper end of the partition plate, pulleys are arranged on the outer surface of the lower end of the installation plate and are slidably installed in the sliding grooves, and the installation plate is connected with the partition plate through the fixing device.
Preferably, the fixing device comprises a plurality of groups of pressing type spring bolts and two groups of clamping plates, the two groups of clamping plates are respectively arranged at two ends of the mounting plate, the pressing type spring bolts are fixedly arranged on the inner surface of the protective box through bolts, a plurality of groups of fixing hole sites are respectively formed in the positions, close to two ends, of the outer surface of the upper end of each clamping plate and the outer surface of the upper end of each partition plate, and lock core rods of the pressing type spring bolts penetrate through the fixing hole sites.
Preferably, -shaped limiting frames are fixedly arranged in the middle of the outer surface of the upper end of the mounting plate, clamping strips are movably arranged on the -shaped limiting frames, sliding blocks are arranged at two ends of the clamping strips, a cavity is formed in the -shaped limiting frames, a second spring is arranged in the cavity, and the sliding blocks are located in the cavity and fixedly connected with one ends of the second spring.
Preferably, the compressing device comprises a pressing plate, a guide plate and a plurality of groups of third springs, wherein the plurality of groups of third springs are fixedly arranged on the inner top surface of the protective box, the plurality of groups of third springs are fixedly connected with the pressing plate at the lower ends of the third springs, and the guide plate is fixedly arranged at the front end of the pressing plate.
Preferably, the inner bottom surface of the protective box is close to the two ends and is fixedly provided with a turbofan and a radiator fan respectively, the partition plate and the mounting plate are provided with radiating ports, and the metal net is arranged in the radiating ports.
Preferably, the baffle is provided with a strip-shaped opening, the inner surface of the strip-shaped opening is provided with a plurality of groups of fixed openings, and the outer surface of the upper end of the protective box is fixedly provided with a protective cover.
Compared with the prior art, the invention provides the GIS ultrahigh frequency partial discharge signal detection device for shielding external interference, which has the following beneficial effects:
1. through the limiting mechanism, the microstrip patch antenna is arranged in the mounting groove on the arc limiting plate, the arc limiting plate is tightly attached to the GIS shell under the action of spring force of the first spring after the shielding shell is mounted, and the microstrip patch antenna is convenient to dismount by people without using tools;
2. the shielding shell is composed of two groups of half shells, when in installation, the limiting piece on one group of half shells is inserted into the limiting hole on the other group of half shells, the limiting elastic piece is restored to deform after being inserted, the step profile of the limiting elastic piece is clamped with the limiting hole, so that the installation of the shielding shell is completed, no special tools are needed, the limiting elastic piece is pressed during the disassembly, and the installation and the disassembly are convenient;
3. through the installation mechanism and the fixing device, the installation plate is movably installed at the upper end of the partition plate, the installation plate can be directly pulled out when the GIS discharge signal detector is installed, and the peripheral space is enlarged, so that wiring of people is facilitated, the installation plate is reset after the installation by matching with the fixing device, the position of the installation plate can be limited by pressing the push type spring bolt, and the use is more convenient;
4. through shape locating part and closing device that sets up, the vertical position of GIS discharge signal detector can be prescribe a limit to the cooperation of No. three springs and clamp plate on the closing device, shape locating part and clamp strip cooperation can prescribe a limit to the horizontal position of GIS discharge signal detector to prescribe a limit to the position of GIS discharge signal detector, improve the stability of GIS discharge signal detector, and the GIS ultrahigh frequency partial discharge signal detection device's of whole shielding external interference simple structure in addition, the installation is more convenient, and the result of use is better, and is comparatively practical.
None of the parts of the device are the same as or can be implemented using prior art.
Drawings
FIG. 1 is a schematic diagram of the overall structure of a GIS ultrahigh frequency partial discharge signal detection device for shielding external interference;
FIG. 2 is a partial structure diagram of a signal acquisition device in a GIS ultrahigh frequency partial discharge signal detection device for shielding external interference;
FIG. 3 is a block diagram of an arc limiting plate in a GIS ultrahigh frequency partial discharge signal detection device for shielding external interference;
FIG. 4 is a bottom view of a signal acquisition device in a GIS ultrahigh frequency partial discharge signal detection device for shielding external interference;
FIG. 5 is a partial structure diagram of a limiting member in a GIS ultrahigh frequency partial discharge signal detection device for shielding external interference;
FIG. 6 is a partial internal structure diagram of a protective box in a GIS ultrahigh frequency partial discharge signal detection device for shielding external interference;
FIG. 7 is a block diagram of a platen in a GIS ultra-high frequency partial discharge signal detection device for shielding external interference according to the present invention;
FIG. 8 is a block diagram of a mounting plate in a GIS ultrahigh frequency partial discharge signal detection device for shielding external interference;
fig. 9 is a partial structure diagram of a clamping strip in a GIS ultra-high frequency partial discharge signal detection device for shielding external interference.
In the figure: 1. a protective box; 2. a partition plate; 3. GIS discharge signal detector; 4. a shield case; 5. a shielding box; 6. a microstrip patch antenna; 7. a cable connector; 8. an arc limiting plate; 9. a first spring; 10. a mounting groove; 11. a limiting piece; 12. a limiting spring plate; 13. a mounting plate; 14. a chute; 15. a pulley; 16. a push-type spring bolt; 17. a clamping plate; 18. -shaped limiting frame; 19. a clamping bar; 20. a slide block; 21. a second spring; 22. a pressing plate; 23. a guide plate; 24. a third spring; 25. a turbo fan; 26. a heat radiation fan; 27. a metal mesh; 28. a strip-shaped opening; 29. a fixed port; 30. and a protective cover.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments.
In the description of the present invention, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present invention and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.
A GIS ultra-high frequency partial discharge signal detection device for shielding external interference, as shown in figures 1-9, comprises:
the device comprises a protective box 1, wherein a plurality of groups of partition boards 2 are arranged in the protective box 1, a mounting mechanism is arranged on the partition boards 2 close to the top end of the protective box 1, a GIS discharge signal detector 3 is arranged on the mounting mechanism, and a pressing device for limiting the longitudinal position of the GIS discharge signal detector 3 is fixedly arranged on the inner top surface of the protective box 1; and
the signal acquisition device comprises a shielding shell 4, a shielding box 5, a limiting mechanism and a microstrip patch antenna 6, wherein the limiting mechanism and the microstrip patch antenna 6 are both positioned in the shielding shell 4, the microstrip patch antenna 6 is arranged on the limiting mechanism, the shielding box 5 is arranged on the outer surface of the shielding shell 4, a cable connector 7 is arranged on the shielding box 5, and the microstrip patch antenna 6 is connected with the GIS discharge signal detector 3 through the cable and the cable connector 7.
When the GIS ultra-high frequency partial discharge detector is used, the microstrip patch antenna 6 collects GIS ultra-high frequency partial discharge signals, the collected data are transmitted to the GIS discharge signal detector 3 through a cable, the GIS discharge signal detector 3 is processed and then displayed, and when the GIS ultra-high frequency partial discharge detector is used, a wireless module can be installed on the GIS discharge signal detector 3, the result is fed back to mobile equipment through the wireless module, and people can conveniently realize wireless monitoring.
The limiting mechanism comprises an arc limiting plate 8 and a first spring 9, the outer surface of the arc limiting plate 8, which is close to the shielding box 5, is fixedly connected with the inner surface of the shielding shell 4 through the first spring 9, a mounting groove 10 is formed in the outer surface, which is far away from the first spring 9, of the arc limiting plate 8, and the microstrip patch antenna 6 is fixedly mounted in the mounting groove 10.
Through the stop gear who sets up, microstrip patch antenna 6 sets up the inside of mounting groove 10 on arc limiting plate 8, and arc limiting plate 8 is hugged closely on the GIS casing under the effect of spring 9 elasticity after the shield casing 4 is installed, need not to adopt the instrument installation, makes things convenient for people to dismantle, and the microstrip patch antenna 6 of being convenient for people to change.
The shielding shell 4 comprises two groups of half shells, wherein one group of half shells is provided with a plurality of groups of limiting parts 11, the other group of half shells is provided with a plurality of groups of limiting holes, and the limiting parts 11 penetrate through the limiting holes and are clamped with the limiting holes.
The limiting piece 11 comprises a central column and a plurality of groups of limiting elastic pieces 12, one ends of the groups of limiting elastic pieces 12 are connected with one end of the central column, and one end, far away from the central column, of the limiting elastic pieces 12 is stepped.
The shielding shell 4 comprises two groups of half shells, during the installation, the locating part 11 on one group of half shells inserts in the spacing hole on another group of half shells, takes place deformation after inserting spacing shell fragment 12 on the locating part 11 and spacing hole contact for in the locating part 11 enters into spacing hole, after entering into, spacing shell fragment 12 mostly passes spacing hole, and spacing shell fragment 12 resumes deformation, and the step profile and the spacing hole joint of spacing shell fragment 12, thereby accomplish the installation of shielding shell 4, need not specialized tool, press spacing shell fragment 12 during the dismantlement can, installation and dismantlement are all more convenient.
The installation mechanism comprises an installation plate 13 and a fixing device, wherein sliding grooves 14 are formed in positions, close to two ends, of the outer surface of the upper end of the partition plate 2, pulleys 15 are arranged on the outer surface of the lower end of the installation plate 13, the pulleys 15 are slidably installed in the sliding grooves 14, and the installation plate 13 is connected with the partition plate 2 through the fixing device.
When the GIS discharge signal detector is used, the mounting plate 13 can be pulled, the pulley 15 on the mounting plate 13 slides along the sliding groove 14, so that the position of the mounting plate 13 is changed, most of the mounting plate 13 extends to the outside of the protective box 1 (or the mounting plate 13 is taken down), and therefore people can conveniently install the GIS discharge signal detector 3.
The fixing device comprises a plurality of groups of pressing type spring bolts 16 and two groups of clamping plates 17, the two groups of clamping plates 17 are respectively arranged at two ends of the mounting plate 13, the pressing type spring bolts 16 are fixedly arranged on the inner surface of the protective box 1 through bolts, a plurality of groups of fixing hole sites are respectively formed in the positions, close to the two ends, of the upper end outer surface of each clamping plate 17 and the upper end outer surface of each partition plate 2, and lock core rods of the pressing type spring bolts 16 penetrate through the fixing hole sites.
Through the installation mechanism and the fixing device that set up, mounting panel 13 movable mounting is in the upper end of baffle 2, can directly take mounting panel 13 out when installing GIS discharge signal detector 3, enlarges peripheral space to make things convenient for people to route, cooperation fixing device resets mounting panel 13 after the installation, presses push type spring bolt 16, and push type spring bolt 16 lock core pole runs through fixed hole site, can inject the position of mounting panel 13, and it is more convenient to use.
The intermediate position of the outer surface of the upper end of the mounting plate 13 is fixedly provided with a -shaped limiting frame 18, the -shaped limiting frame 18 is movably provided with a clamping strip 19, both ends of the clamping strip 19 are provided with sliding blocks 20, the inside of the -shaped limiting frame 18 is provided with a cavity, the inside of the cavity is provided with a second spring 21, the sliding blocks 20 are positioned in the cavity, and one ends of the sliding blocks 20 and the second spring 21 are fixedly connected.
The GIS discharge signal detector 3 is placed into the -shaped limiting frame 18 during installation, the GIS discharge signal detector 3 is in contact with the clamping strip 19 during placement, the second spring 21 stretches, and the clamping strip 19 clamps the GIS discharge signal detector 3 under the elasticity of the second spring 21, so that the horizontal position of the GIS discharge signal detector 3 is limited.
The compressing device comprises a pressing plate 22, a guide plate 23 and a plurality of groups of third springs 24, wherein the upper ends of the groups of third springs 24 are fixedly arranged on the inner top surface of the protective box 1, the lower ends of the groups of third springs 24 are fixedly connected with the pressing plate 22, and the guide plate 23 is fixedly arranged at the front end of the pressing plate 22.
When the GIS discharge signal detector 3 is installed, the upper end of the GIS discharge signal detector 3 is in contact with the pressing plate 22, the third spring 24 is shortened, and the pressing plate 22 is pressed down to clamp the GIS discharge signal detector 3 under the elasticity of the third spring 24, so that the longitudinal position of the GIS discharge signal detector 3 is limited.
Through shape spacing 18 and closing device that set up, the vertical position of GIS discharge signal detector 3 can be injectd to the cooperation of No. three spring 24 and clamp plate 22 on the closing device, and the horizontal position of GIS discharge signal detector 3 can be injectd to No. two spring 21 and clamp strip 19 cooperation on the shape spacing 18 to inject the position of GIS discharge signal detector 3, improve the stability of GIS discharge signal detector 3, the GIS ultrahigh frequency partial discharge signal detection device's of whole shielding external interference simple structure moreover, the installation is more convenient, the result of use is better, and is comparatively practical.
The inner bottom surface of the protective box 1 is near the two ends and is fixedly provided with a turbofan 25 and a radiator fan 26 respectively, the partition plate 2 and the mounting plate 13 are provided with radiating ports, and the metal net 27 is arranged in the radiating ports.
During the use, turbofan 25 convulsions, radiator fan 26 bloies, realizes the inside quick ventilation of protective housing 1, discharges the heat that produces during operation, can also be at the interior surface mounting temperature sensor of protective housing 1, monitors the inside temperature of protective housing 1, starts turbofan 25 and radiator fan 26 according to the temperature for the inside temperature of protective housing 1 is in invariable state.
The baffle 2 is provided with the strip-shaped opening 28, the inner surface of the strip-shaped opening 28 is provided with a plurality of groups of fixed openings 29, the outer surface of the upper end of the protective box 1 is fixedly provided with the protective cover 30, the upper end of the protective cover 30 is inclined, people can clean dust conveniently, and the effect of shielding rainwater is achieved.
The invention relates to a GIS ultra-high frequency partial discharge signal detection device for shielding external interference, which is characterized in that when in use, a microstrip patch antenna 6 collects GIS ultra-high frequency partial discharge signals and transmits the collected data to a GIS discharge signal detector 3 through a cable, and the data are processed by the GIS discharge signal detector 3 and displayed;
during installation, through the limiting mechanism, the microstrip patch antenna 6 is arranged in the installation groove 10 on the arc limiting plate 8, the arc limiting plate 8 is tightly attached to the GIS shell under the action of the elastic force of the first spring 9 after the shielding shell 4 is installed, no tool is needed for installation, and the microstrip patch antenna 6 is convenient for people to detach and replace;
the shielding shell 4 is composed of two groups of half shells, when the shielding shell is installed, the limiting piece 11 on one group of half shells is inserted into the limiting hole on the other group of half shells, the limiting elastic piece 12 on the limiting piece 11 is deformed after being inserted into the limiting hole, so that the limiting piece 11 enters into the limiting hole, most of the limiting elastic piece 12 penetrates through the limiting hole after entering, the limiting elastic piece 12 recovers deformation, the step profile of the limiting elastic piece 12 is clamped with the limiting hole, the shielding shell 4 is installed without special tools, and the limiting elastic piece 12 is pressed when the shielding shell is detached, so that the shielding shell is convenient to install and detach;
through the installation mechanism and the fixing device, the installation plate 13 is movably installed at the upper end of the partition plate 2, the installation plate 13 can be directly pulled out when the GIS discharge signal detector 3 is installed, the peripheral space is enlarged, so that wiring of people is facilitated, the installation plate 13 is reset after the installation by matching with the fixing device, the pressing type spring bolt 16 is pressed down, the lock core rod of the pressing type spring bolt 16 penetrates through the fixing hole site, and the position of the installation plate 13 can be limited, so that the installation plate is convenient to use;
through shape spacing 18 and closing device that set up, the vertical position of GIS discharge signal detector 3 can be injectd to the cooperation of No. three spring 24 and clamp plate 22 on the closing device, and the horizontal position of GIS discharge signal detector 3 can be injectd to No. two spring 21 and clamp strip 19 cooperation on the shape spacing 18 to inject the position of GIS discharge signal detector 3, improve the stability of GIS discharge signal detector 3, the GIS ultrahigh frequency partial discharge signal detection device's of whole shielding external interference simple structure moreover, the installation is more convenient, the result of use is better, and is comparatively practical.
The foregoing has shown and described the basic principles and main features of the present invention and the advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined in the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (8)
1. A GIS ultrahigh frequency partial discharge signal detection device for shielding external interference comprises:
the device comprises a protective box (1), wherein a plurality of groups of partition boards (2) are arranged in the protective box (1), a mounting mechanism is arranged on the partition boards (2) close to the top end of the protective box (1), a GIS discharge signal detector (3) is arranged on the mounting mechanism, and a pressing device for limiting the longitudinal position of the GIS discharge signal detector (3) is fixedly arranged on the inner top surface of the protective box (1); and
the signal acquisition device comprises a shielding shell (4), a shielding box (5), a limiting mechanism and a microstrip patch antenna (6), wherein the limiting mechanism and the microstrip patch antenna (6) are both positioned in the shielding shell (4), the microstrip patch antenna (6) is arranged on the limiting mechanism, the shielding box (5) is arranged on the outer surface of the shielding shell (4), a cable connector (7) is arranged on the shielding box (5), and the microstrip patch antenna (6) is connected with a GIS discharge signal detector (3) through a cable and the cable connector (7);
the limiting mechanism comprises an arc limiting plate (8) and a first spring (9), wherein the outer surface of the arc limiting plate (8) close to the shielding box (5) is fixedly connected with the inner surface of the shielding shell (4) through the first spring (9), an installation groove (10) is formed in the outer surface of the arc limiting plate (8) far away from the first spring (9), and the microstrip patch antenna (6) is fixedly installed in the installation groove (10);
the shielding shell (4) comprises two groups of half shells, wherein one group of half shells is provided with a plurality of groups of limiting parts (11), the other group of half shells are provided with a plurality of groups of limiting holes, and the limiting parts (11) penetrate through the limiting holes and are clamped with the limiting holes.
2. The device for detecting the ultra-high frequency partial discharge signal of the GIS for shielding external interference according to claim 1, wherein the device comprises the following components: the limiting piece (11) comprises a central column and a plurality of groups of limiting elastic pieces (12), one ends of the limiting elastic pieces (12) are connected with one end of the central column, and one end, far away from the central column, of the limiting elastic pieces (12) is stepped.
3. The device for detecting the ultra-high frequency partial discharge signal of the GIS for shielding external interference according to claim 2, wherein the device is characterized in that: the mounting mechanism comprises a mounting plate (13) and a fixing device, sliding grooves (14) are formed in the positions, close to two ends, of the outer surface of the upper end of the partition plate (2), pulleys (15) are arranged on the outer surface of the lower end of the mounting plate (13), the pulleys (15) are slidably mounted in the sliding grooves (14), and the mounting plate (13) is connected with the partition plate (2) through the fixing device.
4. A GIS ultra-high frequency partial discharge signal detection apparatus for shielding external interference according to claim 3, wherein: the fixing device comprises a plurality of groups of pressing type spring bolts (16) and two groups of clamping plates (17), the two groups of clamping plates (17) are respectively arranged at two ends of the mounting plate (13), the pressing type spring bolts (16) are fixedly arranged on the inner surface of the protective box (1) through bolts, a plurality of groups of fixing hole sites are respectively formed in the positions, close to two ends, of the outer surface of the upper end of the clamping plate (17) and the outer surface of the upper end of the partition plate (2), and lock core rods of the pressing type spring bolts (16) penetrate through the fixing hole sites.
5. The device for detecting the ultra-high frequency partial discharge signal of the GIS for shielding external interference according to claim 4, wherein the device comprises: the utility model discloses a mounting panel, including mounting panel (13) and slider, mounting panel, upper end surface intermediate position fixed mounting of (13) has shape spacing (18), movable mounting has clamp strip (19) on shape spacing (18), the both ends of clamp strip (19) all are provided with slider (20), the cavity has been seted up to the inside of shape spacing (18), the inside of cavity is provided with No. two springs (21), slider (20) are located the inside of cavity, slider (20) and No. two one end fixed connection of spring (21).
6. The device for detecting the ultra-high frequency partial discharge signal of the GIS for shielding external interference according to claim 5, wherein the device comprises: the compressing device comprises a pressing plate (22), a guide plate (23) and a plurality of groups of three-number springs (24), wherein the upper ends of the three-number springs (24) are fixedly arranged on the inner top surface of the protective box (1), the lower ends of the three-number springs (24) are fixedly connected with the pressing plate (22), and the guide plate (23) is fixedly arranged at the front end of the pressing plate (22).
7. The device for detecting the ultra-high frequency partial discharge signal of the GIS for shielding external interference according to claim 6, wherein the device comprises: the inner bottom surface of the protective box (1) is close to two ends and is fixedly provided with a turbofan (25) and a radiator fan (26) respectively, radiating ports are formed in the partition plate (2) and the mounting plate (13), and a metal net (27) is arranged in the radiating ports.
8. The device for detecting the ultra-high frequency partial discharge signal of the GIS for shielding external interference according to claim 7, wherein the device comprises: the baffle (2) is provided with a strip-shaped opening (28), the inner surface of the strip-shaped opening (28) is provided with a plurality of groups of fixed openings (29), and the outer surface of the upper end of the protective box (1) is fixedly provided with a protective cover (30).
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| CN202011274312.3A CN112540277B (en) | 2020-11-15 | 2020-11-15 | GIS ultrahigh frequency partial discharge signal detection device for shielding external interference |
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| CN202011274312.3A CN112540277B (en) | 2020-11-15 | 2020-11-15 | GIS ultrahigh frequency partial discharge signal detection device for shielding external interference |
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| CN113933663A (en) * | 2021-09-28 | 2022-01-14 | 广东电网有限责任公司广州供电局 | Active integrated built-in GIS partial discharge ultrahigh frequency detection device and GIS equipment |
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| CN103149507A (en) * | 2013-01-30 | 2013-06-12 | 西安电子科技大学 | Externally arranged ultrahigh frequency partial discharge detection sensor |
| CN205336379U (en) * | 2015-12-12 | 2016-06-22 | 天津天慧通科技有限公司 | Video signal amplifier |
| CN105629142A (en) * | 2016-01-05 | 2016-06-01 | 国家电网公司 | Built-in ultrahigh frequency sensor assembling structure used for GIS partial discharge on-line monitoring |
| CN105738786A (en) * | 2016-03-30 | 2016-07-06 | 合肥工业大学智能制造技术研究院 | GIS ultrahigh frequency partial discharge signal collection device which shields external interface |
| CN207116669U (en) * | 2017-08-15 | 2018-03-16 | 国网安徽省电力公司阜阳市谢桥供电公司 | A kind of sucker antenna antitheft installing mechanism of adjustable signal |
| CN108697043A (en) * | 2018-05-22 | 2018-10-23 | 郑州赫恩电子信息技术有限公司 | A kind of installation cabinet of the communication equipment with electro-magnetic screen function |
| CN209517387U (en) * | 2018-12-24 | 2019-10-18 | 南京泰泓信息科技有限公司 | A kind of radio-frequency antenna is convenient for the multi-service data distributed base station body structure of recycling |
| CN209946782U (en) * | 2019-06-04 | 2020-01-14 | 唐山市果卓科技有限公司 | Computer machine case of mainboard is dismantled in easy to assemble |
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