Wind-resistant and shock-resistant grading ring for extra-high voltage experimental equipment and experimental method of wind-resistant and shock-resistant grading ring

Abstract

The invention discloses a wind-resistant and shock-resistant grading ring for extra-high voltage experimental equipment and an experimental method thereof, and belongs to the technical field of grading ring production experiments.The wind-resistant and shock-resistant grading ring for the extra-high voltage experimental equipment comprises a grading ring body and further comprises a mounting plate, a connecting ring and a supporting rod; by arranging the rolling connection structures between the multiple supporting rods and the grading ring body, when the grading ring is subjected to wind power or earthquake action, energy generated by external force can be effectively absorbed and dispersed, stress concentration is reduced, the grading ring structure is prevented from being damaged due to too large stress, and the wind resistance and shock resistance of the grading ring are remarkably improved; through the integrated design of the mounting plate and the connecting ring and the uniformly arranged assembling holes, the connection between the grading ring and the main body of the extra-high voltage experimental equipment is firmer and more reliable, the possibility of connection looseness caused by external force is reduced, and the stable mounting of the grading ring on the equipment is ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of pressure equalizing ring production, in particular to a wind-resistant and earthquake-resistant pressure equalizing ring for ultra-high voltage experimental equipment and an experimental method thereof. Background Art

[0002] A grading ring is a metal ring used in power equipment. It is mainly installed at both ends of a high-voltage insulator string or on insulating components. Its function is to balance the electric field distribution, reduce local electric field concentration, and prevent corona discharge and arcing, thereby protecting the insulation performance of the equipment and extending its service life. In ultra-high voltage experimental equipment, the uniformity of the electric field distribution is crucial. As a key electric field uniformization device, the grading ring can improve the electric field distribution at the end of the equipment and reduce the electric field strength, thereby improving the insulation performance and operational reliability of the equipment.

[0003] The traditional grading ring structure is relatively fixed and lacks effective wind and earthquake resistance. When subjected to strong winds or earthquakes, the connection between the grading ring and the equipment body is easily subjected to large stress, causing the connection to loosen, be damaged, or even fall off. This will not only affect the normal function of the grading ring and reduce the insulation performance of the equipment, but may also cause safety accidents, posing a serious hidden danger to the safe operation of the UHV experiment.

[0004] Therefore, the present invention provides a wind-resistant and earthquake-resistant equalizing ring for ultra-high voltage experimental equipment, and establishes a corresponding experimental method to verify its performance, which has important practical significance and can solve the above problems. Summary of the Invention

[0005] (1) Technical problems solved

[0006] The present invention provides a wind-resistant and earthquake-resistant equalizing ring for ultra-high voltage experimental equipment and an experimental method thereof, aiming to solve the problems raised in the background technology.

[0007] (2) Technical solution

[0008] To achieve the above object, the present invention provides the following technical solutions:

[0009] A wind-resistant and earthquake-resistant equalizing ring for ultra-high voltage experimental equipment comprises an equalizing ring body, a mounting plate, a connecting ring, and support rods. The mounting plate is fixed at the center of the connecting ring and integrally connected thereto. A plurality of support rods are provided, arranged along the center and circumference of the connecting ring and fixed to the outer peripheral wall of the connecting ring.

[0010] The interior of the equalizing ring body is provided with a sliding cavity, which is an annular sliding cavity located at the inner circle of the equalizing ring body. The upper and lower ends of the sliding cavity are symmetrically provided with sliding grooves, and a plurality of rolling rings are provided inside the sliding grooves. The number of the rolling rings is consistent with the number of the support rods. Each of the rolling rings is sleeved on the end of each of the support rods, and the rolling ring can roll in the sliding groove;

[0011] The mounting plate is provided with a plurality of assembly holes, and the assembly holes are evenly and equidistantly arranged.

[0012] A test method for a wind-resistant and earthquake-resistant grading ring for ultra-high voltage experimental equipment is applied to the wind-resistant and earthquake-resistant grading ring for ultra-high voltage experimental equipment, comprising the following steps:

[0013] S1. Set experimental environment conditions:

[0014] Ensure the experimental environment meets the following requirements: altitude ≤ 1000m, ambient temperature range -15°C to +50°C, relative humidity ≤ 95% (at 20°C), no conductive dust in the user environment, power supply voltage waveform distortion rate < 5%, and earthquake resistance reaching level 8 to eliminate the impact of external interference on the grading ring. Verify environmental parameters before the experiment and measure and record them using a multi-point thermometer and humidity meter and a ground resistance tester.

[0015] S2. Configure and install test equipment, including pressure equalization device:

[0016] Prepare a complete set of equipment including impulse voltage generator body, weak damping capacitor voltage divider, measurement and control system, etc.

[0017] Install a voltage grading ring on the top of the weakly damped capacitor voltage divider, ensuring that it is integrated with the high-voltage arm capacitor and fixed on a movable metal chassis. During installation, adjust the position of the voltage grading ring to make the electric field uniform, and confirm that the voltage divider's moving wheels and fixed legs are locked to prevent the experiment from shifting;

[0018] Connect the measurement and control system, set the charging voltage and polarity through the touch screen, and enable the automatic grounding system to ensure that the capacitor is automatically discharged when the test is interrupted;

[0019] S3. Perform shock test and apply pressure equalization device:

[0020] Conduct an operational impulse test, trigger the impulse voltage generator, and synchronize the discharge spherical gap to be enclosed in an insulating cylinder and supplied with filtered air to ensure that the grading ring effectively suppresses flashover under high pressure;

[0021] S4. Collect and analyze waveform data to verify the voltage balancing effect:

[0022] Use impact digital acquisition and measurement software and a matching oscilloscope to collect waveform data. The software connects to a computer via Ethernet communication and automatically processes lightning wave or operating wave parameters.

[0023] Analyze waveform data, verify the performance of the grading ring, and ultimately evaluate the test results based on standards: If the waveform parameters meet the specified deviation (lightning wave amplitude ±3%) and there are no flashover events, the grading ring is confirmed to be effective; otherwise, adjust the grading ring position or damping resistor.

[0024] A production device for wind-resistant and earthquake-resistant equalizing rings for ultra-high voltage experimental equipment includes a vertical plate, the back of which is fixedly connected to a drive motor, the output end of the drive motor passes through the vertical plate and is fixedly connected to a first fixed wheel for placing the equalizing ring, the top of the vertical plate is fixedly connected to a front cross plate, the bottom surface of the front cross plate is fixedly connected to a first hydraulic cylinder, the bottom end of the first hydraulic cylinder is fixedly connected to a connecting frame, the internal rotation of the connecting frame is connected to a second fixed wheel for tightening the equalizing ring, and a rear tightening mechanism for supporting the equalizing ring is installed on the vertical plate.

[0025] As a preferred technical solution of the present application, the second fixed wheel is arranged above the first fixed wheel, and the outer surfaces of the first fixed wheel and the second fixed wheel are both provided with grooves for placing equalizing rings.

[0026] As a preferred technical solution of the present application, a plurality of grooves are provided, and the grooves on the outer surfaces of the first fixed wheel and the second fixed wheel are narrowed sequentially from the outside to the inside.

[0027] As a preferred technical solution of the present application, a through opening is provided on the front of the vertical plate, and the rear tightening mechanism includes a movable block arranged inside the through opening, a circular groove is provided on the front of the movable block, and a ball is provided inside the circular groove.

[0028] As a preferred technical solution of the present application, the back of the vertical plate is fixedly connected to the rear horizontal plate, the bottom surface of the rear horizontal plate is fixedly connected to the second hydraulic cylinder, the bottom end of the second hydraulic cylinder is fixedly connected to the third hydraulic cylinder, and the front end of the third hydraulic cylinder is fixedly connected to the back of the movable block.

[0029] As a preferred technical solution of the present application, the bottom surface of the vertical plate is fixedly connected to a bottom plate, a collection box is placed on the bottom plate, the bottom surface of the collection box is fixedly connected to a group of bases, and a group of limiting grooves adapted to the bases are provided on the bottom plate.

[0030] As a preferred technical solution of the present application, mounting holes are provided at the four corners of the upper end surface of the base plate, and the upper end surface of the base plate and the back surface of the vertical plate are fixedly connected with two reinforcing ribs.

[0031] As a preferred technical solution of the present application, a slide is provided on the front of the vertical plate, and the connecting frame is slidably connected to the inside of the slide.

[0032] (3) Beneficial effects

[0033] 1. The present invention provides a rolling connection structure between multiple support rods and the equalizing ring body. When subjected to wind or earthquake, it can effectively absorb and disperse the energy generated by external forces, reduce stress concentration, and avoid damage to the equalizing ring structure due to excessive force, thereby significantly improving the wind and earthquake resistance of the equalizing ring.

[0034] The integrated design of the mounting plate and the connecting ring and the evenly arranged assembly holes make the connection between the equalizing ring and the main body of the UHV test equipment more secure and reliable, reducing the possibility of loose connection due to external force and ensuring the stable installation of the equalizing ring on the equipment.

[0035] 2. By strictly setting experimental environment conditions, accurately configuring and installing test equipment, standardizing impact testing, and scientifically collecting and analyzing waveform data, the present invention can accurately verify the wind and earthquake resistance and pressure-equalizing effect of the pressure-equalizing ring, providing a reliable experimental basis for the research, development, and application of the pressure-equalizing ring.

[0036] The use of automated data collection and processing methods reduces manual operation errors and workload, and improves experimental efficiency and data accuracy;

[0037] 3. In the production device, the upper and lower cooperation of the first fixed wheel and the second fixed wheel can adapt to pressure-equalizing rings of different specifications, and realize rapid positioning and clamping thereof. The driving motor provides power, and can also drive the first fixed wheel to rotate, thereby driving the fixed pressure-equalizing ring to rotate together, and adjusting its processing position, so that the staff does not need to re-clamp it, and no processing dead angle is left, which can improve production efficiency. Through the rear clamping mechanism, the cooperation of the movable block and the ball can be used to tighten the back of the pressure-equalizing ring in real time to offset the radial force during processing; the rotation of the ball can reduce friction, avoid scratches on the surface of the pressure-equalizing ring, and enhance the smoothness of rotation, thereby extending the life of the workpiece. Through the second hydraulic cylinder and the third hydraulic cylinder, the flexible adjustment of the movable block in the front and back and up and down directions can be realized by their cooperation to meet the processing requirements of different pressure-equalizing rings and improve the applicability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 A three-dimensional diagram of the pressure equalizing ring of the present invention;

[0039] Figure 2 It is a three-dimensional exploded view of the pressure equalizing ring of the present invention;

[0040] Figure 3 A top view of the pressure equalizing ring of the present invention;

[0041] Figure 4 For the present invention Figure 3 Cross-sectional view along the AA axis;

[0042] Figure 5 A perspective view of the production device of the present invention;

[0043] Figure 6 It is a side view of the production device of the present invention;

[0044] Figure 7 It is a side view of the production device of the present invention;

[0045] Figure 8 A perspective view of a collecting box in the production device of the present invention;

[0046] Figure 9 is a perspective view of the second fixed wheel in the production device of the present invention;

[0047] Figure 10 It is a side view of the first fixed wheel in the production device of the present invention;

[0048] Figure 11 It is a side view of the movable block in the production device of the present invention.

[0049] In the picture:

[0050] 1. Vertical plate; 2. Driving motor; 3. First fixed wheel; 4. Front transverse plate; 5. First hydraulic cylinder; 6. Connecting frame; 7. Second fixed wheel; 8. Groove; 9. Slide; 10. Rear transverse plate; 11. Second hydraulic cylinder; 12. Third hydraulic cylinder; 13. Movable block; 14. Circular groove; 15. Ball; 16. Through port; 17. Bottom plate; 18. Collection box; 19. Base; 20. Limiting groove; 21. Mounting hole; 22. Reinforcement rib; 23. Mounting plate; 24. Equalizing ring body; 25. Rolling ring; 26. Support rod; 27. Assembly hole; 28. Connecting ring; 29. ​​Sliding cavity; 30. Slide groove. DETAILED DESCRIPTION

[0051] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0052] Example 1

[0053] The present invention provides a wind-resistant and earthquake-resistant equalizing ring for ultra-high voltage experimental equipment, such as Figures 1 to 4As shown, it includes a pressure-equalizing ring body 24, a mounting plate 23, a connecting ring 28 and a support rod 26. The connecting ring 28 serves to connect the mounting plate 23 and the support rod 26, providing support and a connecting frame for the entire pressure-equalizing ring structure. The mounting plate 23 is fixed at the center of the connecting ring 28 and is connected to it as a whole. This integrated design allows the mounting plate 23 and the connecting ring 28 to form a stable overall structure that can better withstand external forces. There are multiple support rods 26, which are arranged along the center circumference of the connecting ring 28 and fixed on the outer peripheral wall of the connecting ring 28; multiple support rods 26 are evenly distributed around the connecting ring 28 to form a symmetrical structure, which can support the pressure-equalizing ring body 24 from multiple directions and enhance the stability of the structure. When subjected to wind or earthquake, the support rods 26 can share the external force together to avoid local stress concentration, thereby improving the pressure-equalizing ring's ability to resist external forces.

[0054] The interior of the equalizing ring body 24 is provided with a sliding cavity 29. The sliding cavity 29 is an annular sliding cavity 29 and is located at the inner circle of the equalizing ring body 24. The upper and lower ends of the sliding cavity 29 are symmetrically provided with sliding grooves 30. A plurality of rolling rings 25 are provided inside the sliding grooves 30. The number of the rolling rings 25 is consistent with the number of the support rods 26. Each of the rolling rings 25 is sleeved on the end of each of the support rods 26 and can roll in the sliding grooves 30.

[0055] When the equalizing ring is subjected to external forces such as wind or earthquakes, support rod 26 will move relative to ring body 24. At this point, rolling ring 25 rolls within slot 30, converting sliding friction between support rod 26 and ring body 24 into rolling friction. This significantly reduces friction and allows support rod 26 to move more smoothly relative to ring body 24. This rolling connection effectively absorbs and disperses energy generated by external forces, preventing stress concentration from damaging the ring structure and thus improving its wind and earthquake resistance.

[0056] The mounting plate 23 is a component connected to the main body of the ultra-high voltage experimental equipment. The mounting plate 23 is provided with a plurality of assembly holes 27, which are evenly and equidistantly arranged. Through these assembly holes 27, the equalizing ring can be firmly mounted on the equipment using fasteners such as bolts to ensure the reliability of the connection.

[0057] like Figure 5-11As shown, a production device for wind-resistant and earthquake-resistant equalizing rings for ultra-high voltage experimental equipment includes a vertical plate 1, the back of the vertical plate 1 is fixedly connected to a driving motor 2, the output end of the driving motor 2 passes through the vertical plate 1 and is fixedly connected to a first fixed wheel 3 for placing the equalizing ring, the top of the vertical plate 1 is fixedly connected to a front cross plate 4, the bottom surface of the front cross plate 4 is fixedly connected to a first hydraulic cylinder 5, the bottom end of the first hydraulic cylinder 5 is fixedly connected to a connecting frame 6, the interior of the connecting frame 6 is rotatably connected to a second fixed wheel 7 for pressing the equalizing ring, a slide 9 is provided on the front of the vertical plate 1, and the connecting frame 6 is slidably connected to the inside of the slide 9.

[0058] Specifically, the vertical plate 1 forms the device frame, constructed from high-strength steel to withstand the vibrations and loads encountered during processing, ensuring overall structural stability. A slideway 9 on the front of the vertical plate 1 provides vertical guidance for the connecting frame 6, ensuring smoother lifting and lowering of the second fixed wheel 7 and preventing machining errors caused by unbalanced loading. The output shaft of the drive motor 2 is directly connected to the first fixed wheel 3, powering the equalizing ring during operation.

[0059] The second fixed wheel 7 is positioned above the first fixed wheel 3. A groove 8 for accommodating a pressure equalizing ring is formed on the outer surfaces of both the first fixed wheel 3 and the second fixed wheel 7. Multiple grooves 8 are provided, and the grooves 8 on the outer surfaces of both the first fixed wheel 3 and the second fixed wheel 7 gradually narrow from the outside to the inside.

[0060] The first and second fixed wheels 3 and 7 cooperate to form a clamping mechanism for the equalizing ring. The first fixed wheel 3 is the driving wheel, directly driven by the drive motor 2; the second fixed wheel 7 is the driven wheel, applying pressure via the first hydraulic cylinder 5 to prevent the workpiece from slipping during machining. The multi-stage grooves 8 on the outer surfaces of both wheels taper from the outside to the inside, accommodating equalizing rings of varying diameters for rapid positioning and limiting axial displacement of the workpiece.

[0061] A rear abutment mechanism for supporting the equalizing ring is mounted on the vertical plate 1. A through-hole 16 is provided on the front of the vertical plate 1. The rear abutment mechanism includes a movable block 13 disposed within the through-hole 16. A circular groove 14 is provided on the front of the movable block 13, and a ball bearing 15 is disposed within the circular groove 14. The back of the vertical plate 1 is fixedly connected to the rear cross plate 10. A second hydraulic cylinder 11 is fixedly connected to the bottom surface of the rear cross plate 10. A third hydraulic cylinder 12 is fixedly connected to the bottom end of the second hydraulic cylinder 11. The front end of the third hydraulic cylinder 12 is fixedly connected to the back of the movable block 13.

[0062] A rearward abutment mechanism supports the fixed equalizing ring from behind. During operation, the second hydraulic cylinder 11 controls the forward and backward displacement of the movable block 13, ensuring that the ball bearings 15 maintain contact with the inner wall of the workpiece. The third hydraulic cylinder 12 adjusts the support height to accommodate equalizing rings of varying sizes. The ball bearings 15 convert sliding friction into rolling friction, reducing frictional resistance. This protects the workpiece's surface finish and effectively offsets radial forces applied by machining tools or abrasives, preventing workpiece vibration or deformation.

[0063] The bottom surface of the upright 1 is fixedly connected to a base plate 17, on which a collection box 18 is placed. The bottom surface of the collection box 18 is fixedly connected to a set of bases 19. The base plate 17 has a set of retaining grooves 20 that match the bases 19. The four corners of the upper end surface of the base plate 17 are provided with mounting holes 21. The upper end surface of the base plate 17 and the back surface of the upright 1 are fixedly connected by two reinforcing ribs 22.

[0064] The collection box 18, which connects to the retaining groove 20 on the bottom plate 17 via a base 19, serves as a waste collection container. This allows metal shavings, dust, and other waste generated during processing to fall naturally into the box under the action of gravity, preventing contamination of the work environment. It can be quickly assembled and disassembled during use, making it easy to clean.

[0065] Working principle: When in use, the pressure-equalizing ring to be processed can be placed in the groove 8 of the first fixed wheel 3. The gradually narrowing multi-stage design of the groove 8 can adapt to pressure-equalizing rings of different diameters to ensure initial positioning. Then, the second fixed wheel 7 is driven downward by the first hydraulic cylinder 5 to press the upper surface of the pressure-equalizing ring, so that it can be stably fixed between the upper and lower fixed wheels to prevent displacement or vibration during processing. During the processing, starting the drive motor 2 can drive the first fixed wheel 3 to rotate, and then the pressure-equalizing ring rotates synchronously under the clamping of the upper and lower fixed wheels, and due to the limiting effect of the groove 8, the pressure-equalizing ring will not move axially during the rotation process, which can ensure the smooth progress of the processing. Furthermore, when the pressure-equalizing ring is rotated for processing The second hydraulic cylinder 11 and the third hydraulic cylinder 12 are used in conjunction to push the movable block 13 forward, so that the ball 15 is in close contact with the back of the equalizing ring, supporting it, which can offset the radial vibration during processing. The ball 15 rotates in this process to avoid scratching the surface of the workpiece, while ensuring that the equalizing ring rotates smoothly. The debris or dust generated during the processing can naturally fall into the collection box 18, which is convenient for centralized cleaning. The collection box 18 is quickly positioned through the base 19 and the limit groove 20, which is convenient for disassembly and dumping of waste. After the processing is completed, the first hydraulic cylinder 5 retracts, loosening the second fixed wheel 7. At the same time, the rear tightening mechanism can release the fixation of the equalizing ring to facilitate the removal of the processed equalizing ring.

[0066] Example 2

[0067] This embodiment 2 provides an experimental method for a pressure equalizing ring, which is used to better perform experimental testing on the pressure equalizing ring in embodiment 1. The specific method is as follows:

[0068] A test method for a wind-resistant and earthquake-resistant grading ring for ultra-high voltage experimental equipment is applied to the wind-resistant and earthquake-resistant grading ring for ultra-high voltage experimental equipment, comprising the following steps:

[0069] S1. Set experimental environment conditions:

[0070] Ensure that the experimental environment meets the following requirements: altitude ≤ 1000m, ambient temperature range -15℃ to +50℃, relative humidity ≤ 95% (at 20℃), no conductive dust in the user environment, power supply voltage waveform distortion rate <5%, and earthquake resistance reaching level 8. These conditions are to eliminate the impact of external interference on the grading ring effect and ensure the accuracy and reliability of the experimental results. Verify the environmental parameters before the experiment and use a multi-point thermometer and humidity meter and a ground resistance tester to measure and record them.

[0071] S2. Configure and install test equipment, including pressure equalization device:

[0072] Prepare a complete set of equipment including impulse voltage generator body, weak damping capacitor voltage divider, measurement and control system, etc.

[0073] Install a voltage grading ring on the top of the weakly damped capacitor voltage divider, ensuring that it is integrated with the high-voltage arm capacitor and fixed on a movable metal chassis. During installation, adjust the position of the voltage grading ring to make the electric field uniform, and confirm that the voltage divider's moving wheels and fixed legs are locked to prevent the experiment from shifting;

[0074] Connect the measurement and control system, set the charging voltage and polarity through the touch screen, and enable the automatic grounding system to ensure that the capacitor is automatically discharged when the test is interrupted;

[0075] S3. Perform shock test and apply pressure equalization device:

[0076] Conduct an operational impulse test, trigger the impulse voltage generator, and synchronize the discharge ball gap to be enclosed in an insulating cylinder and supplied with filtered air. This ensures that the grading ring can effectively suppress flashover under high pressure and verifies its performance in an actual high-voltage environment.

[0077] S4. Collect and analyze waveform data to verify the voltage balancing effect:

[0078] Waveform data is collected using impact digital acquisition and measurement software and a matching oscilloscope. The software connects to a computer via Ethernet communication and automatically processes lightning wave or operational wave parameters. This automated data acquisition and processing method can improve experimental efficiency and data accuracy.

[0079] Analyze waveform data, verify the performance of the grading ring, and finally evaluate the test results based on the standard: if the waveform parameters meet the specified deviation (lightning wave amplitude ± 3%) and there is no flashover event, the grading ring is confirmed to be effective; otherwise, adjust the grading ring position or damping resistor

[0080] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A wind-resistant and earthquake-resistant equalizing ring for ultra-high voltage experimental equipment, comprising an equalizing ring body (24), characterized in that: It also includes a mounting plate (23), a connecting ring (28) and a support rod (26), wherein the mounting plate (23) is fixed at the center of the connecting ring (28) and is integrally connected thereto, and a plurality of support rods (26) are provided, arranged along the center circumference of the connecting ring (28) and fixed on the outer peripheral wall of the connecting ring (28); The interior of the equalizing ring body (24) is provided with a sliding cavity (29), and the sliding cavity (29) is an annular sliding cavity (29) and is located at the inner circle of the equalizing ring body (24). The upper and lower ends of the sliding cavity (29) are symmetrically provided with sliding grooves (30). A plurality of rolling rings (25) are provided inside the sliding groove (30). The number of the rolling rings (25) is consistent with the number of the support rods (26). Each of the rolling rings (25) is sleeved on the end of each of the support rods (26), and the rolling rings (25) can roll in the sliding groove (30); The mounting plate (23) is provided with a plurality of assembly holes (27), and the assembly holes (27) are evenly and equidistantly arranged.

2. An experimental method for a wind-resistant and earthquake-resistant pressure-equalizing ring for ultra-high voltage experimental equipment, characterized in that: The method is applied to a wind-resistant and earthquake-resistant grading ring for ultra-high voltage experimental equipment as described in claim 1, comprising the following steps: S1. Set experimental environment conditions: Ensure the experimental environment meets the following requirements: altitude ≤ 1000m, ambient temperature range -15°C to +50°C, relative humidity ≤ 95% (at 20°C), no conductive dust in the user environment, power supply voltage waveform distortion rate < 5%, and earthquake resistance reaching level 8 to eliminate the impact of external interference on the grading ring. Verify environmental parameters before the experiment and measure and record them using a multi-point thermometer and humidity meter and a ground resistance tester. S2. Configure and install test equipment, including pressure equalization device: Prepare a complete set of equipment including impulse voltage generator body, weak damping capacitor voltage divider, measurement and control system, etc. Install a voltage grading ring on the top of the weakly damped capacitor voltage divider, ensuring that it is integrated with the high-voltage arm capacitor and fixed on a movable metal chassis. During installation, adjust the position of the voltage grading ring to make the electric field uniform, and confirm that the voltage divider's moving wheels and fixed legs are locked to prevent the experiment from shifting; Connect the measurement and control system, set the charging voltage and polarity through the touch screen, and enable the automatic grounding system to ensure that the capacitor is automatically discharged when the test is interrupted; S3. Perform shock test and apply pressure equalization device: Conduct an operational impulse test, trigger the impulse voltage generator, and synchronize the discharge spherical gap to be enclosed in an insulating cylinder and supplied with filtered air to ensure that the grading ring effectively suppresses flashover under high pressure; S4. Collect and analyze waveform data to verify the voltage balancing effect: Use impact digital acquisition and measurement software and a matching oscilloscope to collect waveform data. The software connects to a computer via Ethernet communication and automatically processes lightning wave or operating wave parameters. Analyze waveform data, verify the performance of the grading ring, and ultimately evaluate the test results based on standards: If the waveform parameters meet the specified deviation (lightning wave amplitude ±3%) and there are no flashover events, the grading ring is confirmed to be effective; otherwise, adjust the grading ring position or damping resistor.

3. A production device for a wind-resistant and earthquake-resistant equalizing ring for ultra-high voltage experimental equipment, comprising a vertical plate (1), characterized in that: The back of the vertical plate (1) is fixedly connected to a driving motor (2), the output end of the driving motor (2) passes through the vertical plate (1) and is fixedly connected to a first fixed wheel (3) for placing a pressure equalizing ring, the top of the vertical plate (1) is fixedly connected to a front transverse plate (4), the bottom surface of the front transverse plate (4) is fixedly connected to a first hydraulic cylinder (5), the bottom end of the first hydraulic cylinder (5) is fixedly connected to a connecting frame (6), the interior of the connecting frame (6) is rotatably connected to a second fixed wheel (7) for pressing the pressure equalizing ring, and a rear tightening mechanism for supporting the pressure equalizing ring is installed on the vertical plate (1).

4. The production device for wind-resistant and earthquake-resistant equalizing rings for ultra-high voltage experimental equipment according to claim 3, characterized in that: The second fixed wheel (7) is arranged above the first fixed wheel (3), and the outer surface of the first fixed wheel (3) and the outer surface of the second fixed wheel (7) are both provided with a groove (8) for accommodating a pressure equalizing ring.

5. The production device for wind-resistant and earthquake-resistant equalizing rings for ultra-high voltage experimental equipment according to claim 4, characterized in that: The grooves (8) are provided in plurality, and the grooves (8) are narrowed sequentially from the outside to the inside on the outer surfaces of the first fixed wheel (3) and the second fixed wheel (7).

6. The production device for wind-resistant and earthquake-resistant equalizing rings for ultra-high voltage experimental equipment according to claim 3, characterized in that: The front of the vertical plate (1) is provided with a through opening (16), and the rear tightening mechanism comprises a movable block (13) arranged inside the through opening (16), a circular groove (14) is provided on the front of the movable block (13), and a ball (15) is arranged inside the circular groove (14).

7. The production device for wind-resistant and earthquake-resistant equalizing rings for ultra-high voltage experimental equipment according to claim 6, characterized in that: The back of the vertical plate (1) is fixedly connected to a rear transverse plate (10), the bottom of the rear transverse plate (10) is fixedly connected to a second hydraulic cylinder (11), the bottom end of the second hydraulic cylinder (11) is fixedly connected to a third hydraulic cylinder (12), and the front end of the third hydraulic cylinder (12) is fixedly connected to the back of a movable block (13).

8. The production device for wind-resistant and earthquake-resistant equalizing rings for ultra-high voltage experimental equipment according to claim 3, characterized in that: The bottom surface of the vertical plate (1) is fixedly connected to a bottom plate (17), a collection box (18) is placed on the bottom plate (17), the bottom surface of the collection box (18) is fixedly connected to a group of bases (19), and a group of limiting grooves (20) adapted to the bases (19) are provided on the bottom plate (17).

9. The production device for wind-resistant and earthquake-resistant equalizing rings for ultra-high voltage experimental equipment according to claim 8, characterized in that: The four corners of the upper end surface of the bottom plate (17) are provided with mounting holes (21), and the upper end surface of the bottom plate (17) and the back surface of the vertical plate (1) are fixedly connected to each other by two reinforcing ribs (22).

10. The production device for wind-resistant and earthquake-resistant equalizing rings for ultra-high voltage experimental equipment according to claim 3, characterized in that: A slideway (9) is provided on the front of the vertical plate (1), and the connecting frame (6) is slidably connected to the inside of the slideway (9).

Images