Grounding device easy to disassemble and close for GIS equipment

Abstract

The invention relates to the technical field of GIS equipment grounding, and particularly discloses a GIS equipment-oriented grounding device easy to disassemble and close, which comprises a GIS equipment body. The supporting assembly is located at the bottom end of the side wall of the GIS equipment body; the grounding device comprises a support assembly and a closed conductive assembly, the closed conductive assembly is fixed on a GIS equipment body through the support assembly, a rotating hinge is arranged at the end part of the closed conductive assembly, all the assemblies cooperate to realize rapid disassembly and stable closing of the grounding device, and the grounding device is adaptive to operation and maintenance requirements of GIS equipment of different specifications. Through the innovative structural design of the adjustable magnet, the rotating hinge and guide cooperation, a traditional bolt and nut fastening mode is replaced, a special tool is not needed, the disassembly and assembly operation of a grounding part can be completed within 30 seconds by a single person, and the problems that a traditional grounding device needs cooperation of multiple persons, and time and labor are consumed are thoroughly solved. And meanwhile, the time consumption for disassembling and assembling the grounding bar in a single test can be greatly shortened, and the human input is reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of GIS equipment grounding, and particularly relates to a grounding device easy to disassemble and close for GIS equipment. BACKGROUND

[0002] At present, the mainstream GIS equipment grounding device on the market generally adopts a bolt and nut fastening mode to fix the grounding bar, and this mode has obvious defects in the disassembly and assembly process. In the electrical test and equipment maintenance of a substation, the staff needs to prepare special tools first, and then disassemble or assemble the bolts and nuts one by one, which is complex and time-consuming. Taking 220kV GIS combined electrical equipment as an example, the matching grounding copper bar is usually a single length of 25cm structure, and the number of copper bars configured for a single device is as many as 120, and the disassembly and assembly of each copper bar takes 5 minutes on average. Only the grounding bar disassembly and assembly work greatly prolongs the overall maintenance cycle and significantly increases the labor cost. Especially in the case of urgent test tasks, such inefficient operation may cause the test work to be unable to be carried out on time, thereby affecting the normal maintenance and detection plan of the power equipment. If the time is delayed for too long, the test data may be distorted, and the real operating condition of the equipment cannot be accurately reflected. In addition, when the working site is narrow and there are obstacles and other complex conditions, the disassembly and assembly operation of the bolts and nuts is further increased in difficulty, and even the grounding bar may not be disassembled, which seriously hinders the smooth progress of the electrical test of the equipment.

[0003] On the one hand, the connection reliability of the traditional bolt fastening type grounding device is greatly affected by the installation process. Since the grounding device has many connection parts, the butt joint precision and contact tightness are required to be high. If the connection parts are not aligned and the contact is not tight during the installation process, the contact resistance is likely to be too large, the equipment charge cannot be timely and effectively led to the ground, and safety hazards are brought to the equipment and the operation and maintenance personnel. On the other hand, the bolts are prone to thread slipping and loosening in the long-term repeated disassembly and assembly process, which not only leads to unreliable connection of the grounding bar and reduces the safety and stability of the grounding device, but also further increases the difficulty of subsequent disassembly and assembly and aggravates the complexity of maintenance work. At the same time, in the harsh environment of high temperature, humidity and strong corrosion, the connection parts of the bolts and the grounding bar are easily eroded, which leads to the decline of the connection performance and even the fracture failure, thereby affecting the normal operation of the entire grounding system.

[0004] The grounding copper bar of the traditional grounding device and the components such as the bolts and nuts are small in size, and these scattered components are not easy to be properly stored during the disassembly and assembly operation, and are extremely prone to loss. Once the components are lost, the matching grounding copper bar or bolts and nuts need to be reconfigured, which not only delays the progress of the maintenance and test work, but also additionally increases the material cost and time cost of equipment maintenance.

[0005] The existing grounding device is mostly a special structure designed for specific manufacturers and specific voltage grade GIS equipment, and its size and installation mode lack unified standards and cannot be adapted to different types and specifications of GIS equipment. When the GIS equipment in a substation comes from multiple manufacturers or is arranged in different voltage grades, multiple specifications of grounding devices need to be equipped, which not only increases the equipment procurement cost, but also brings inconvenience to operation and maintenance management. SUMMARY

[0006] Therefore, the technical problem to be solved by the present application is that the existing GIS equipment grounding device has obvious defects in terms of disassembly efficiency, connection reliability, component storage and adaptability, which seriously affects the efficiency and safety of power operation and maintenance, and cannot meet the actual needs of current power grid efficient and safe operation.

[0007] The above technical problem is solved by the following technical scheme: the present application provides an easy-to-disassemble and close grounding device for GIS equipment, which comprises a GIS equipment body; a support assembly located at the bottom end of the side wall of the GIS equipment body; and a closed conductive assembly fixed on the GIS equipment body by the support assembly, and the end of the closed conductive assembly is provided with a rotating hinge, and each component cooperates to realize quick disassembly and stable closure of the grounding device, and meets the operation and maintenance needs of different specifications of GIS equipment.

[0008] In a preferred mode of the easy-to-disassemble and close grounding device for GIS equipment according to the present application: the support assembly comprises a cross arm arranged at the bottom end of the GIS equipment body, and the cross arm is used to install a plurality of closed conductive assemblies on the same axis.

[0009] In a preferred mode of the easy-to-disassemble and close grounding device for GIS equipment according to the present application: the closed conductive assembly comprises a fixed magnet base arranged at the bottom end of the cross arm, and the bottom end of the fixed magnet base is provided with a rotating auxiliary part.

[0010] In a preferred mode of the easy-to-disassemble and close grounding device for GIS equipment according to the present application: the side wall of the rotating auxiliary part is provided with a closing static contact, and the top end of the rotating hinge is provided with a closing dynamic contact.

[0011] In a preferred mode of the easy-to-disassemble and close grounding device for GIS equipment according to the present application: the closing static contact and the closing dynamic contact are arranged correspondingly, and when they are in contact, a grounding conductive path is formed; the contact surfaces of the closing static contact and the closing dynamic contact are designed in an adaptive structure to ensure close contact in the closed state, meet the preset current transmission requirements and contact resistance standards, and both are made of materials with stable conductivity and corrosion resistance.

[0012] In a preferred embodiment of the easily detachable and closable grounding device for GIS equipment described in this invention: a fixing member and a simulated ground busbar are provided at the top of the rotating hinge, and the simulated ground busbar is located between the closing moving contact and the rotating hinge.

[0013] In a preferred embodiment of the easily detachable and closable grounding device for GIS equipment described in this invention: the rotating hinge includes a connecting rod, which is connected to a guide rod via a hinge shaft.

[0014] In a preferred embodiment of the easily detachable and closable grounding device for GIS equipment described in this invention: the fixing member cooperates with the guide rod, and when the fixing member moves along the guide rod, it can drive the grounding component on the simulated grounding bar to move synchronously, thereby realizing the rapid switching of the grounding component between the working position and the test position.

[0015] In a preferred embodiment of the easily detachable and closable grounding device for GIS equipment described in this invention: the rotating auxiliary component includes a housing disposed at the bottom end of the fixed magnet base, and an adjustment knob is provided at the end of the housing. The adjustment knob is connected to the adjustable magnet via a shaft.

[0016] In a preferred embodiment of the easily detachable and closable grounding device for GIS equipment described in this invention: the adjustable magnet is arranged in a semi-circular shape, and its adjustment knob can drive the adjustable magnet on the shaft to rotate 90 degrees. At the same time, a pad is provided at the bottom of the housing, and the pad matches the fixing component.

[0017] The beneficial effects of this invention are as follows: Through an innovative structural design featuring adjustable magnets, rotating hinges, and guiding mechanisms, it replaces the traditional bolt and nut fastening method. No special tools are required, and a single person can complete the disassembly and assembly of grounding components within 30 seconds, completely solving the problem of traditional grounding devices requiring multiple people and being time-consuming and labor-intensive. Taking a 220kV GIS device as an example, it can significantly shorten the time spent on disassembling and assembling the grounding busbar during a single test, reducing manpower input. It also avoids difficulties in disassembly and assembly caused by narrow space or obstacles, ensuring that power equipment maintenance and testing can be carried out on time, and significantly improving overall operation and maintenance efficiency.

[0018] Through integrated structural design, key components such as simulated grounding busbars, fixing parts, and conductive contacts are integrated into the support components and rotating hinges, avoiding the problem of scattered copper busbars, bolts and nuts being easily lost in traditional grounding devices. This eliminates the need for additional investment in component replacement and reduces maintenance delays caused by component loss, thereby reducing additional losses and management difficulties in equipment maintenance.

[0019] The crossarm structure of the support component can be flexibly adjusted in length according to the specifications of the GIS equipment. The adjustable magnet and guide rod can be matched to the installation requirements of grounding components of different sizes. It is also compatible with GIS equipment from different manufacturers and with different voltage levels, eliminating the need for separate design and customization for specific equipment. Whether in rainy and humid outdoor environments, coastal high-salt-fog environments, or frigid northern environments, this device can perform stably and can be widely promoted to various indoor and outdoor GIS substations nationwide. It has a wide range of applications and provides a standardized and universal grounding solution for power grid operation and maintenance.

[0020] At the same time, it effectively avoids the problem of test data distortion caused by the delay in disassembly and assembly of traditional grounding devices, ensuring that electrical tests of equipment can be carried out in a timely and smooth manner, enabling maintenance personnel to accurately grasp the health status of equipment, providing reliable data support for the maintenance and repair of power equipment, thereby ensuring the safe, stable and continuous power supply of the power grid and reducing power supply losses caused by equipment failure or test delays. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings of the embodiments of the present invention will be briefly described below. Obviously, the drawings described below only relate to some embodiments of the present invention and are not intended to limit the present invention. Wherein: Figure 1 A schematic diagram of the overall structure of a grounding device for easy disassembly and closure of GIS equipment is shown. Figure 2 A schematic diagram of a grounding device structure for easily detachable and closable grounding devices for GIS equipment is shown. Figure 3 A schematic diagram of the grounding device adjustment knob structure for an easily detachable and closable grounding device for GIS equipment is shown. Figure 4 A schematic diagram of the connection structure between the adjustable magnet and the adjustment knob of the grounding device for easy disassembly and closure of GIS equipment is shown. Detailed Implementation

[0022] To enable those skilled in the art to better understand the present invention, the present invention will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0023] The terminology used in this invention is that which is currently widely used in the art in consideration of the function of the invention; however, these terms may vary according to the intent of those skilled in the art, precedent, or new technology in the art. Furthermore, specific terms may be chosen by the applicant, and in such cases, their detailed meanings will be described in the detailed description of the invention. Therefore, the terms used in this specification should not be construed as simple names, but rather based on their meanings and the overall description of the invention.

[0024] Reference Figure 1 This embodiment provides an easy-to-disassemble and close grounding device for GIS equipment. It addresses the pain points of existing GIS equipment grounding devices, such as cumbersome disassembly and assembly, insufficient closure reliability, and poor adaptability. It can achieve rapid switching and stable connection of grounding components.

[0025] GIS equipment body 1, which is the core main structure of the GIS equipment, includes key components such as high voltage conductive circuit and insulating parts, and is the installation and bearing foundation of the grounding device; Support component 2 is located at the bottom of the side wall of the GIS equipment body 1. Its installation position is precisely designed to ensure that it corresponds to the grounding interface position of the GIS equipment, providing stable installation support and positioning reference for the subsequent closed conductive component 3. The closed conductive component 3 is fixed to the GIS equipment body 1 by the support component 2. The end of the closed conductive component 3 is provided with a rotating hinge 31. The rotating hinge 31 has flexible rotation performance and reliable structural strength. Through the cooperation of each component, the grounding device can be quickly disassembled and assembled between the working state and the test state, while ensuring the electrical connection stability when closed. It can adapt to the operation and maintenance test and daily maintenance needs of GIS equipment of different manufacturers, different voltage levels and different specifications.

[0026] Reference Figures 1-2 As an optional embodiment, the support component 2 includes a crossbeam 21 disposed at the bottom of the GIS equipment body 1. The crossbeam 21 is used to install several closed conductive components 3 on the same axis. The crossbeam 21 is fixedly disposed at the bottom of the GIS equipment body 1 by bolt fastening or welding. The length of the crossbeam 21 can be flexibly adjusted according to the number of closed conductive components 3 to be installed in the GIS equipment. Its surface is provided with uniformly distributed mounting holes for accurately installing several closed conductive components 3 at the same axis position, ensuring the synchronization of the operation of each closed conductive component 3 and the accuracy of docking.

[0027] The closed conductive component 3 includes a fixed magnet base 32 that is fixed to the bottom of the crossarm 21 by bolts or welding. The fixed magnet base 32 is made of the same corrosion-resistant material as the crossarm 21 and has good structural stability, which can provide a solid installation foundation for subsequent components. The bottom of the fixed magnet base 32 is equipped with a rotating auxiliary component 33 through a detachable connection structure. The rotating auxiliary component 33 can realize angle adjustment and component driving functions.

[0028] The side wall of the rotating auxiliary component 33 is fitted with a stationary closing contact 34 by means of inlay or bolt fixing. The contact surface of the stationary closing contact 34 is precision machined to ensure conductivity and contact reliability. The top of the rotating hinge 31 is fixedly installed with a moving closing contact 35 corresponding to the position of the stationary closing contact 34. The installation position of the moving closing contact 35 is precisely aligned with that of the stationary closing contact 34.

[0029] The stationary closing contact 34 and the moving closing contact 35 are configured to be compatible with each other. When they come into contact with each other, they can form a complete grounding conductive path, which can efficiently conduct the residual charge or induced charge of the GIS equipment body 1 to the ground. The contact surfaces of the stationary closing contact 34 and the moving closing contact 35 adopt a concave-convex adaptive structure design, which increases the contact area while avoiding contact offset, ensuring that the two contacts are tightly connected without gaps in the closed state, meeting the current transmission requirements and contact resistance standards preset by the power industry. Both are made of metal materials with excellent conductivity stability, salt spray corrosion resistance and moisture oxidation resistance, making them suitable for long-term use in complex outdoor environments.

[0030] The top of the rotating hinge 31 is equipped with a fixing component 36 and a simulated ground busbar 37 via a sliding fit or fixed connection. The simulated ground busbar 37 serves as the transmission carrier for grounding current, and its structural dimensions are adapted to the grounding requirements of different GIS equipment. The simulated ground busbar 37 is fixedly installed between the closing moving contact 35 and the rotating hinge 31, ensuring a smooth current transmission path and avoiding the problem of easy loss of traditional grounding copper busbars. In the closed conductive assembly, the closing stationary contact and the closing moving contact adopt a concave-convex fitting structure design, combined with the stable adsorption and fixation of an adjustable magnet, ensuring tight, gapless contact in the closed state. The grounding resistance meets electrical safety standards, effectively preventing the problem of charge not being promptly dissipated due to excessive contact resistance. Simultaneously, all conductive components are made of high-quality, corrosion-resistant, and moisture-resistant materials. The adjustable magnet replaces the repeatedly disassembled bolts, eliminating stripping, loosening, and rust jamming. This ensures the long-term stable operation of the grounding device in complex environments such as high temperature, humidity, and strong corrosion, and eliminates safety hazards such as equipment damage and electric shock caused by unreliable connections.

[0031] Reference Figures 2-3 In one embodiment provided in this application, the rotating hinge 31 includes a connecting rod 311, which is connected to the guide rod 313 via a hinge shaft 312. The hinge shaft 312 is made of a wear-resistant and lubricating material to ensure smooth rotation without jamming, and can realize multi-angle rotation adjustment of the guide rod 313.

[0032] The fixing component 36 and the guide rod 313 cooperate with each other. When the fixing component 36 moves along the guide rod 313, it can drive the grounding component on the simulated grounding busbar 37 to move synchronously, realizing the rapid switching of the grounding component between the working position and the test position. The fixing component 36 can move smoothly along the length direction of the guide rod 313, and the fixing component 36 is fixedly connected to the simulated grounding busbar 37. When the fixing component 36 moves along the guide rod 313, it can synchronously drive the grounding component on the simulated grounding busbar 37 and the closing moving contact 35 to adjust their positions, realizing the rapid switching of the grounding component between the working position and the test position without the need for complex tools.

[0033] Reference Figures 2-4 In some embodiments, the rotation auxiliary component 33 includes a housing 331 disposed at the bottom end of the fixed magnet base 32. The housing 331 has an internally hollow structure to accommodate the adjustable magnet 333 and the shaft, serving a protective and positioning function. An adjustment knob 332 is provided at the end of the housing 331, and the adjustment knob 332 is connected to the adjustable magnet 333 via the shaft. Rotating the adjustment knob 332 can directly drive the shaft and the adjustable magnet 333 to rotate synchronously.

[0034] The adjustable magnet 333 is semi-circular in shape. Its adjustment knob 332 can drive the adjustable magnet 333 on the shaft to rotate 90 degrees. At the same time, a pad 334 is provided at the bottom of the housing 331, which matches the fixing member 36. The adjustable magnet 333 is semi-circular in shape and is made of high-adsorption permanent magnet material, which has stable adsorption performance. The adjustment knob 332 can drive the adjustable magnet 333 on the shaft to rotate precisely from 0 to 90 degrees, realizing the switching and fixing functions of the adsorption surface. At the same time, the bottom of the housing 331 is fixedly provided with a pad 334 that is adapted to the structure of the fixing member 36. Its size and shape match the fixing member 36 to ensure the stability when the fixing member 36 and the pad 334 are in contact.

[0035] Confirm that the connection between the GIS equipment body 1 and the support component 2 is secure, that the crossarm 21 remains horizontal, and that all closed conductive components 3 are on the same axis to provide a reference for subsequent docking.

[0036] By rotating the connecting rod 311 of the hinge 31 and the hinge shaft 312, the guide rod 313 is rotated, which drives the simulated grounding busbar 37 and the closing moving contact 35 to move closer to the closing stationary contact 34 until the closing moving contact 35 and the closing stationary contact 34 are precisely fitted together, forming a stable grounding conductive path.

[0037] Simultaneously, as the fixing member 36 moves along the guide rod 313, it fully contacts the pad 334 at the bottom of the housing 331. Then, by holding the adjustment knob 332 at the end of the rotating auxiliary member 33 and rotating it 90 degrees clockwise, the semi-circular adjustable magnet 333 inside the housing rotates synchronously via the shaft, causing the adsorption surface of the adjustable magnet 333 to face the fixing member 36, thus completing the adsorption preparation. At this time, the adjustable magnet 333 generates an adsorption force, firmly adsorbing and fixing the fixing member 36, preventing loosening or displacement during operation, and ensuring that the contact resistance meets the preset standard.

[0038] Hold the adjustment knob 332 and rotate it 90 degrees counterclockwise. This will cause the adjustable magnet 333 to rotate in the opposite direction, causing the adsorption surface of the adjustable magnet 333 to detach from the fixing part 36 and release the adsorption and fixing state.

[0039] By rotating the guide rod 313 in the opposite direction, the closing moving contact 35 is driven to separate from the closing stationary contact 34, thus breaking the grounding conductive path; at this time, the simulated ground busbar 37 rotates synchronously with the guide rod 313, moving away from the GIS equipment body 1.

[0040] Continue rotating the guide rod 313 until the simulated ground row 37 reaches the preset test position. Utilize the structural limiting characteristics of the rotating hinge 31 to ensure that the simulated ground row 37 does not sway after disconnection and remains stable.

[0041] Check that the closing moving contact 35 and closing stationary contact 34 of all closed conductive components 3 are completely separated, the adjustable magnet 333 is in the unlocked position, the fixing part 36 is detached from the pad 334, the grounding device has been successfully switched to the test state, and subsequent equipment testing can be carried out.

[0042] Finally, it should be noted that the methods and devices described in detail above are merely embodiments, and those skilled in the art can modify these embodiments in different ways as long as they do not depart from the scope of the present invention.

Claims

1. A grounding device for GIS equipment that is easy to disassemble and close, characterized in that: include, GIS equipment body (1); Support component (2), said support component (2) being located at the bottom end of the side wall of the GIS equipment body (1); and The closed conductive component (3) is fixed on the GIS equipment body (1) by the support component (2). The end of the closed conductive component (3) is provided with a rotating hinge (31). The components work together to realize the quick disassembly and stable closure of the grounding device, adapting to the operation and maintenance needs of GIS equipment of different specifications.

2. The easily detachable and closable grounding device for GIS equipment according to claim 1, characterized in that: The support component (2) includes a crossbeam (21) disposed at the bottom of the GIS equipment body (1), the crossbeam (21) being used to install several closed conductive components (3) on the same axis.

3. The easily detachable and closable grounding device for GIS equipment according to claim 2, characterized in that: The closed conductive component (3) includes a fixed magnet base (32) disposed at the bottom end of the crossarm (21), and a rotation auxiliary component (33) is disposed at the bottom end of the fixed magnet base (32).

4. The easily detachable and closable grounding device for GIS equipment according to claim 3, characterized in that: The side wall of the rotating auxiliary component (33) is provided with a closing stationary contact (34), and the top of the rotating hinge (31) is provided with a closing moving contact (35).

5. The easily detachable and closable grounding device for GIS equipment according to claim 4, characterized in that: The stationary closing contact (34) and the moving closing contact (35) are respectively arranged, and a grounding conductive path is formed when they are in contact. The contact surfaces of the stationary closing contact (34) and the moving closing contact (35) adopt an adaptive structure design to ensure tight contact in the closed state, meet the preset current transmission requirements and contact resistance standards, and both are made of materials with conductive stability and corrosion resistance.

6. The easily detachable and closable grounding device for GIS equipment according to claim 5, characterized in that: The top of the rotating hinge (31) is provided with a fixing member (36) and a simulated grounding bar (37), which is located between the closing moving contact (35) and the rotating hinge (31).

7. The easily detachable and closable grounding device for GIS equipment according to claim 6, characterized in that: The rotating hinge (31) includes a connecting rod (311), which is connected to the guide rod (313) via a hinge shaft (312).

8. The easily detachable and closable grounding device for GIS equipment according to claim 7, characterized in that: The fixing member (36) cooperates with the guide rod (313). When the fixing member (36) moves along the guide rod (313), it can drive the grounding component on the simulated grounding bar (37) to move synchronously, so as to realize the rapid switching of the grounding component between the working position and the test position.

9. The easily detachable and closable grounding device for GIS equipment according to claim 8, characterized in that: The rotation auxiliary component (33) includes a housing (331) disposed at the bottom end of the fixed magnet base (32), and an adjustment knob (332) is provided at the end of the housing (331). The adjustment knob (332) is connected to the adjustable magnet (333) via a shaft.

10. The easily detachable and closable grounding device for GIS equipment according to claim 9, characterized in that: The adjustable magnet (333) is semi-circular, and its adjustment knob (332) can drive the adjustable magnet (333) on the shaft to rotate 90 degrees. At the same time, a pad (334) is provided at the bottom of the housing (331), and the pad (334) matches the fixing member (36).

Images