Capacitor insulation and voltage resistance test equipment for reactive power compensation device

Through automated modular design and contactless testing, the problems of low efficiency and poor safety of capacitor testing equipment of reactive compensation devices are solved, and an efficient and safe capacitor testing process is achieved to meet strict standards.

CN120385897APending Publication Date: 2025-07-29STATE GRID SHANDONG ELECTRIC POWER CO RUSHAN CITY POWER SUPPLY CO
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Patent Information

Application Number
CN202510674374.X
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-05-23
Publication Date
2025-07-29

AI Technical Summary

Technical Problem

The existing reactive power compensation device capacitor testing equipment has low testing efficiency and poor safety. The boost waiting time needs to be extended during DC testing, and the high current requirement during AC testing limits the response speed. There are safety risks in manual operation.

Method used

It adopts automated and modular design, and uses conveyor belts, pneumatic jaws and multi-station collaborative testing to realize automatic loading, positioning and transport of capacitors. It conducts contactless testing through cylinder-driven pressure test components and insulation test components, combining intelligent feedback and fault tolerance mechanisms to ensure test safety and accuracy.

Benefits of technology

Significantly improve the testing efficiency by more than 50%, avoid frequent manual operations, ensure test safety, meet the DL/T 596-2021 standards, and provide efficient, stable and safe testing solutions.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention relates to the technical field of reactive power compensation device testing, in particular to a capacitor insulation and voltage resistance testing device for a reactive power compensation device, which comprises a base, a rack is arranged on the side of the base, a conveying belt is mounted in the rack, a first electric sliding rail is vertically arranged on a first carrier plate, a bearing plate is slidably mounted on the first electric sliding rail, and a second electric sliding rail is mounted on the bearing plate. A pneumatic clamping jaw is fixedly installed on the side portion of the bearing plate, a nut base is installed on the lead screw, a plurality of voltage-withstanding testing assemblies are fixedly installed on the side portion of the first assembling plate, a piston rod of the fourth air cylinder is vertically arranged, a second assembling plate is fixedly installed at the end of the piston rod, and an insulation testing assembly is fixedly installed on the side portion of the second assembling plate. Through automatic conveying and transferring of the conveying belt, accurate positioning of the pneumatic clamping jaw and multi-station cooperative testing, voltage withstanding testing operation and insulation testing operation of the capacitor are achieved, the testing efficiency is improved, manual intervention in the testing operation is not needed, potential safety hazards are eliminated, and uncontrollable safety accidents are avoided.
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Description

Technical Field

[0001] The present invention relates to the technical field of reactive power compensation device testing, and specifically discloses a capacitor insulation withstand voltage testing device for reactive power compensation devices. Background Art

[0002] Capacitors play a core role in reactive power compensation devices. By providing capacitive reactive power, capacitors directly offset the lagging reactive current generated by inductive loads in the power system, correct the phase difference between current and voltage, increase the power factor from 0.7 - 0.8 to above 0.95, reduce line losses, relieve voltage fluctuations, and improve power transmission efficiency.

[0003] To ensure the functionality of capacitors in reactive power compensation devices, most reactive power compensation devices need to perform insulation testing operations and withstand voltage testing operations on their capacitors before installation. Capacitors are mostly subjected to withstand voltage testing before power-on operations; when most capacitor testing devices perform DC testing, since only one capacitor can be tested at a time, and because the charging current of the capacitor far exceeds the actual leakage current, a longer boost waiting time is required to avoid misjudgment; at the same time, during AC testing, although there is no boost delay, the high current demand limits the response speed of the high-voltage output, so a longer output time is required. Thus, it can be seen that existing testing devices require a long testing time both in DC and AC testing environments, greatly reducing the testing efficiency.

[0004] In addition, after the withstand voltage testing operation, most capacitor testing devices need to perform insulation testing operations on capacitors with the assistance of manual operation; there are multiple safety hazards in manually performing insulation testing operations on capacitors. If the capacitor is not completely discharged before operation, the residual high-voltage charge on the capacitor may cause electric shock to the operator, resulting in burns at least and cardiac arrest at worst; secondly, when manually wiring, the test instrument may be damaged due to instantaneous current impact, and the splashing metal fragments or high-temperature gas pose a threat to personal safety, leading to uncontrollable safety accidents. Summary of the Invention

[0005] In view of the problems of low testing efficiency and poor safety in the current testing operations of capacitors in reactive power compensation devices, the present invention provides a capacitor insulation withstand voltage testing device for reactive power compensation devices.

[0006] To solve the above problems, the present invention provides the following technical solutions: A capacitor insulation withstand voltage test device for a reactive power compensation device, comprising a base. A bench is arranged on the side of the base. A conveyor belt is installed inside the bench, and the conveyor belt is used for stably conveying capacitors. A first support seat, a second support seat, and a third support seat are fixedly installed on the base. A first cylinder is installed on the first support seat, and the sliding direction of the piston rod of the first cylinder is arranged parallel to the conveying direction of the conveyor belt. A first carrier plate is fixedly installed at the end of the piston rod of the first cylinder. A first electric slide rail arranged vertically is provided on the first carrier plate, and a receiving plate is slidably installed on the first electric slide rail. A pneumatic gripper is fixedly installed on the side of the receiving plate, and the pneumatic gripper is used for clamping and transporting capacitors. A lead screw arranged parallel to the conveying direction of the conveyor belt is rotatably installed on the second support seat. A nut seat is installed on the lead screw, and a second carrier plate is fixedly installed on the side of the nut seat. A second electric slide rail arranged vertically is provided on the second carrier plate, and a first assembly plate is slidably installed on the second electric slide rail. A plurality of withstand voltage test components are fixedly installed on the side of the first assembly plate, and the withstand voltage test components are used for testing the parameter fluctuation data of the capacitor under the condition of high-voltage energization. A third cylinder is installed on the third support seat, and the sliding direction of the piston rod of the third cylinder is arranged perpendicular to the conveying direction of the conveyor belt. A third carrier plate is fixedly installed at the end of the piston rod of the third cylinder. A fourth cylinder is fixedly installed on the third carrier plate, and the piston rod of the fourth cylinder is arranged vertically and a second assembly plate is fixedly installed at the end. An insulation test component is fixedly installed on the side of the second assembly plate, and the insulation test component is used for testing the insulation parameters of the capacitor shell.

[0007] Preferably, isolation plates are arranged on both sides of the conveyor belt, and the isolation plates are fixedly connected to the bench. The arrangement height of the conveyor belt is the same as that of the base, and the arrangement height of the top of the isolation plate is higher than that of the conveyor belt. A first motor is fixedly installed on the side of the isolation plate, and the output shaft of the first motor is in transmission cooperation with the conveyor belt.

[0008] Preferably, a second motor is fixedly installed on the first carrier plate. A first pulley is fixedly sleeved at the end of the output shaft of the second motor. A second pulley is rotatably installed on the first carrier plate. A first belt is sleeved in transmission between the first pulley and the second pulley. A first slide rail arranged parallel to the first belt is provided on the side of the first belt, and the first slide rail is arranged perpendicular to the conveyor belt. A first sliding seat is slidably installed on the first slide rail, and the first sliding seat is fixedly clamped with the first belt. A fifth cylinder is arranged on the side of the first sliding seat, and the piston rod of the fifth cylinder is arranged vertically. A sleeve plate is fixedly installed at the end of the piston rod of the fifth cylinder, and the first electric slide rail is fixedly installed on the side of the sleeve plate.

[0009] Preferably, a first electric slider is vertically and slidably mounted on the first electric slide rail. The first electric slider is firmly connected to the receiving plate. A rubber block is fixedly mounted on the side of the receiving plate, and the rubber block is arranged between the two clamping arms of the pneumatic gripper.

[0010] Preferably, a third motor is fixedly mounted on the side of the second support base. The output shaft of the third motor is in transmission cooperation with the lead screw. The inner side of the nut seat is slidably matched with the second support base. A plurality of second electric slide rails are provided and are evenly arranged at equal distances. Second electric sliders are slidably mounted on the second electric slide rails. The second electric sliders are all firmly connected to the assembly plate. A plurality of extension frames are fixedly mounted on the assembly plate and are evenly arranged at equal distances. The extension frames correspond to the withstand voltage test components one by one.

[0011] Preferably, the withstand voltage test component includes a sixth cylinder firmly connected to the extension frame. The piston rod of the sixth cylinder is vertically downward. A connecting support is fixedly mounted at the end of the piston rod of the sixth cylinder. A base is fixedly connected to the bottom of the connecting support. A plurality of high-voltage input rods and high-voltage test rods are jointly mounted between the connecting support and the base. The tops of the high-voltage input rods and high-voltage test rods are all arranged above the connecting support. The bottoms of the high-voltage input rods and high-voltage test rods are all arranged below the base and are in contact with the terminals at the top of the capacitor.

[0012] Preferably, the high-voltage input rods and high-voltage test rods are both slidably matched with the connecting support and the base. First telescopic springs are sleeved on the peripheries of the high-voltage input rods and high-voltage test rods. The two ends of the telescopic springs are respectively firmly connected to the connecting support and the base.

[0013] Preferably, the insulation test component includes a vertical plate firmly connected to the second assembly plate. A fourth motor is fixedly mounted on the vertical plate. A third pulley is fixedly sleeved at the end of the output shaft of the fourth motor. A fourth pulley is rotatably mounted on the second assembly plate. A second belt is transmission-sleeved between the third pulley and the fourth pulley. A second slide rail parallel to the second belt is arranged on the side of the second belt. The second slide rail is vertically arranged. A second slide seat is slidably mounted on the second slide rail. The second slide seat is firmly clamped with the second belt.

[0014] Preferably, a U-shaped seat is fixedly mounted on the side of the second slide seat. An insulation test wire is fixedly mounted on the top of the U-shaped seat. A suspension rod is suspended at the bottom of the U-shaped seat. The suspension rod is slidably matched with the U-shaped seat and touches the wiring terminal at the bottom of the insulation test wire. A pressing plate is fixedly mounted at the bottom of the suspension rod. The pressing plate is in contact with the terminal at the top of the capacitor.

[0015] Preferably, a second telescopic spring is sleeved on the outer periphery of the suspension rod, and the top and bottom ends of the second telescopic spring are respectively fastened to the U-shaped seat and the pressure contact plate.

[0016] Compared with the prior art, the present invention has the following beneficial effects: The capacitor insulation withstand voltage test equipment for the reactive power compensation device in the present invention significantly improves the test efficiency and operation safety through automated and modular structural design; firstly, the full-process automated collaboration, the conveyor belt and the pneumatic gripper cooperate to realize automatic feeding, positioning and transfer of the capacitor, the first cylinder drives the receiving plate to move precisely along the conveying direction, and the three-dimensional space positioning of the withstand voltage test component is controlled by combining the lead screw and the electric slide rail, so that multi-station continuous testing can be quickly completed, avoiding frequent manual handling and wiring operations, and the efficiency is increased by more than 50%; secondly, safety isolation and precise control, the withstand voltage test component loads programmed high-voltage energization parameters and monitors real-time data, and the insulation test component is driven by the third and fourth cylinders to move vertically and horizontally to ensure non-contact docking of the test probe with the capacitor housing, and there is no need for manual contact with the live part throughout the process, completely avoiding the risks of electric shock and arc, and at the same time, the sealed test cabin design can suppress external environmental interference; thirdly, intelligent feedback and fault tolerance mechanism, the test data is uploaded to the control system in real time through the sensor, abnormal fluctuations automatically trigger emergency power-off or alarm, and each cylinder and electric slide rail are equipped with displacement redundancy detection to prevent equipment damage caused by mechanical collision or positioning deviation; in summary, the device replaces high-risk manual operations through mechanical automation, realizes the standardization of the test process with high-precision motion control and closed-loop data management, and has the core advantages of high efficiency, stability and inherent safety, so it has a very broad application prospect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the present invention, the drawings required for description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present invention, and those of ordinary skill in the art can also obtain other drawings based on these drawings without creative efforts; Figure 1 is a schematic structural diagram of the overall device of the present invention; Figure 2 is a schematic installation structure diagram of the first support seat, the second support seat and the third support seat of the present invention; Figure 3 is a schematic installation structure diagram of the cooperation between the first pulley and the second pulley of the present invention; Figure 4 is a schematic installation structure diagram of the pneumatic gripper of the present invention; Figure 5 is a schematic installation structure diagram of the withstand voltage test component of the present invention; Figure 6This is a schematic structural diagram of a pressure test assembly according to the present invention; Figure 7 This is a schematic diagram of the installation structure of the insulation test assembly of the present invention; Figure 8 This is a schematic structural diagram of the insulation test assembly of the present invention; Figure 9 This is a schematic diagram of the installation structure of the insulated test wire of the present invention; In the figure: 1. Base, 2. Stand, 3. Conveyor belt, 4. First support base, 5. Second support base, 6. Third support base, 7. First cylinder, 8. First carrier plate, 9. First electric slide rail, 10. Adapter plate, 11. Pneumatic gripper, 12. Screw, 13. Nut seat, 14. Second carrier plate, 15. Second electric slide rail, 16. Assembly plate, 17. Pressure test assembly, 1701. Sixth cylinder, 1702. Connecting support, 1703. Base, 1704. High-voltage input rod, 1705. High-voltage test rod 1706. 6. First telescopic spring, 18. Third cylinder, 19. Third carrier plate, 20. Fourth cylinder, 21. Second assembly plate, 22. Insulation test assembly, 2201. Vertical plate, 2202. Fourth motor, 2203. Third pulley, 2204. Fourth pulley, 2205. Second belt, 2206. Second slide rail, 2207. Second slide seat, 2208. U-shaped seat, 2209. Insulation test wire, 2210. Hanging rod, 2211. Pressure touch plate, 2212. Second telescopic spring, 2213. Second telescopic spring. 23. Isolation plate, 24. First motor, 25. Second motor, 26. First pulley, 27. Second pulley, 28. First belt, 29. First slide rail, 30. First slide seat, 31. Fifth cylinder, 32. Bushing, 33. First electric slider, 34. Rubber block, 35. Third motor, 36. Second electric slider, 37. Extension frame, DETAILED DESCRIPTION In order to make the purpose, features, and advantages of the present invention more obvious and easy to understand, the technical solutions of the present invention will be clearly and completely described below in conjunction with the drawings in the specific embodiments. Obviously, the embodiments described below 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 work are within the scope of protection of the present invention.

[0018] This specific embodiment provides a capacitor insulation withstand voltage test device for reactive power compensation device, such as Figures 1-9As shown; it includes a base 1, which is the main force-bearing structure of the entire device and can be used to fix the entire test device in the test operation area of the reactive compensation device. A stand 2 is provided on the side of the base 1, and the bottom of the stand 2 is placed in the test operation area of the reactive compensation device. The inner side of the stand 2 is tightly connected to the outer side of the base 1, so that the stand 2 and the base 1 are assembled into an integrated structure; the front and rear ends of the stand 2 are rotatably mounted with transmission rollers, which rotate in conjunction with the stand 2, and the periphery of the two transmission rollers is equipped with a conveyor belt 3, and the outer side of the rear end transmission roller is provided with a first motor 24. Isolation plates 23 are provided on both sides of the conveyor belt 3, and the isolation plates 23 are tightly connected to the stand 2. The arrangement height of the conveyor belt 3 is the same as that of the base 1, and the arrangement height of the top of the isolation plate 23 is higher than the arrangement height of the conveyor belt 3. The housing of the first motor 24 and the isolation plate 23 are connected to each other, so that the first motor 24 is fixedly mounted on the side of the platform 2 and provides a rotational driving force to the transmission roller, so that the conveyor belt 3 can rotate in the platform 2.

[0019] The base 1 is fixedly mounted with a first support base 4, a second support base 5, and a third support base 6. The first support base 4, the second support base 5, and the third support base 6 are arranged linearly along the direction of the conveyor belt 3. The first support base 4 is a right-angle structure, with its top end close to the front end of the conveyor belt 3. The first support base 4 is mounted with a first cylinder 7, which can be a servo cylinder. The sliding direction of the piston rod of the first cylinder 7 is arranged parallel to the conveying direction of the conveyor belt 3. The end of the piston rod of the first cylinder 7 is fixedly mounted with a first carrier plate 8, so that the piston rod of the first cylinder 7 can flexibly adjust the position of the first carrier plate 8. The first carrier plate 8 is fixedly mounted with a second motor 25, the output shaft of the second motor 25 being arranged downward. The end of the output shaft of the second motor 25 is fixedly mounted with a first pulley 26. The first carrier plate 8 is rotatably mounted with a second pulley 27. A first belt 28 is driven between the first and second pulleys 26 and 27. The first belt 28 is arranged perpendicular to the conveyor belt 3. A first slide rail 29 arranged parallel to the first belt 28 is provided on the side of the first slide rail 29, and the first slide rail 29 is arranged perpendicular to the conveyor belt 3. A first slide seat 30 is slidably installed on the first slide rail 29, and the first slide seat 30 is tightly clamped with the first belt 28. A fifth cylinder 31 is provided on the side of the first slide seat 30, and the piston rod of the fifth cylinder 31 is arranged vertically, and the head of the piston rod of the fifth cylinder 31 is vertically facing downward. A sleeve plate 32 is fixedly installed on the end of the piston rod of the fifth cylinder 31, and a first electric slide rail 9 is fixedly installed on the side of the sleeve plate 32.

[0020] A first electric slider 33 is vertically and slidably mounted on the first electric slide rail 9, and the first electric slider 33 can adjust the vertical height along the first electric slide rail 9; the first electric slider 33 is fixedly connected to a receiving plate 10, and a pneumatic gripper 11 is fixedly mounted on the side of the receiving plate 10. The pneumatic gripper 11 is provided with two clamping arms, and the two clamping arms can cooperate to clamp and transfer the capacitor. A rubber block 34 is fixedly mounted on the side of the receiving plate 10, and the rubber block 34 is arranged between the two clamping arms of the pneumatic gripper 11 to limit the minimum distance between the two clamping arms. On the one hand, it can ensure that the surface of the capacitor is not damaged, and on the other hand, it can slow down the vibration when the clamping arms contact each other and reduce the noise during the operation of the overall equipment.

[0021] A lead screw 12 parallel to the conveying direction of the conveyor belt 3 is rotatably mounted on the second support base 5. A third motor 35 is fixedly mounted on the side of the second support base 5. The output shaft of the third motor 35 is in transmission cooperation with the lead screw 12 through a coupling to drive the lead screw 12 to rotate at a constant speed; a nut seat 13 is mounted on the lead screw 12, and the inner side of the nut seat 13 is slidably matched with the second support base 5, so that when the lead screw 12 rotates, the nut seat 13 linearly displaces on the second support base 5. A second carrier plate 14 is fixedly mounted on the side of the nut seat 13. A second electric slide rail 15 arranged vertically is provided on the second carrier plate 14. There are two second electric slide rails 15 and they are evenly arranged at equal distances. Second electric sliders 36 are slidably mounted on both second electric slide rails 15, and the second electric sliders 36 are fixedly connected to the assembly plate 16 to appropriately adjust the vertical height of the assembly plate 16; three extension frames 37 evenly arranged at equal distances are fixedly mounted on the assembly plate 16. The extension frames 37 are of a square structure, and a voltage withstand test assembly 17 is fixedly mounted on the outside of each extension frame 37.

[0022] Each voltage withstand test assembly 17 includes a sixth cylinder 1701 fixedly connected to the extension frame 37. The piston rod of the sixth cylinder 1701 is vertically downward. A connecting support 1702 is fixedly mounted at the bottom end of the piston rod of the sixth cylinder 1701. A base 1703 is fixedly connected to the bottom of the connecting support 1702. A plurality of high-voltage input rods 1704 and high-voltage test rods 1705 are jointly mounted between the connecting support 1702 and the base 1703. The tops of the high-voltage input rods 1704 and high-voltage test rods 1705 are arranged above the connecting support 1702, and the bottoms of the high-voltage input rods 1704 and high-voltage test rods 1705 are arranged below the base 1703 and are in contact with the terminals at the top of the capacitor, so that the high-voltage input rod 1704 continuously inputs current to the capacitor, and the high-voltage test rod 1705 real-time feeds back data and feeds it back to the terminal data analysis device, so that the voltage withstand test assembly 17 tests the parameter fluctuation data of the capacitor under the condition of high-voltage energization.

[0023] Among them, the high-voltage input rod 1704 and the high-voltage test rod 1705 are both slidably matched with the connecting support 1702 and the base 1703. The periphery of the high-voltage input rod 1704 and the high-voltage test rod 1705 are both equipped with a first telescopic spring 1706, and the two ends of the telescopic spring 1706 are respectively fastened to the connecting support 1702 and the base 1703; by setting the telescopic spring 1706, a shock-absorbing structure can be provided for the connecting support 1702 and the base 1703 to reduce the vibration caused by instantaneous current impact.

[0024] The third support seat 6 is arranged on the side of the rear end of the conveyor belt 3; a third cylinder 18 is installed on the third support seat 6, and the sliding direction of the piston rod of the third cylinder 18 is arranged perpendicular to the conveying direction of the conveyor belt 3. The third cylinder 18 can be a servo cylinder, and the end of the piston rod of the third cylinder 18 is fixedly installed with a third carrier plate 19, and the third carrier plate 19 is fixedly installed with a fourth cylinder 20. The fourth cylinder 20 can be a servo cylinder, and the piston rod of the fourth cylinder 20 is arranged vertically and a second assembly plate 21 is fixedly installed on the end. The second assembly plate 21 is a horizontal plate structure, and the second assembly plate 21 is arranged perpendicular to the conveyor belt 3.

[0025] An insulation test assembly 22 is fixedly installed on the side of the second assembly plate 21. The insulation test assembly 22 includes a vertical plate 2201 that is fastened to the second assembly plate 21, and one end face of the vertical plate 2201 is fastened to the second assembly plate 21; a fourth motor 2202 is fixedly installed on the vertical plate 2201, and the output shaft of the fourth motor 2202 is arranged horizontally. The output shaft end of the fourth motor 2202 is fixedly sleeved with a third pulley 2203, and the fourth pulley 2204 is rotatably mounted on the second assembly plate 21. A second belt 2205 is transmitted between the third pulley 2203 and the fourth pulley 2204. A second slide rail 2206 arranged parallel to the second belt 2205 is provided on the side of the second belt 2205. The second slide rail 2206 is arranged vertically. A second slide seat 2207 is slidably mounted on the second slide rail 2206. The second slide seat 2207 is tightly clamped with the second belt 2205. A U-shaped seat 2208 is fixedly mounted on the side of the second slide seat 2207, so that the U-shaped seat 2208 can be adjusted in vertical height along the second slide rail 2206.

[0026] An insulating test wire 2209 is fixedly installed at the top of the U-shaped seat 2208. The insulating test wire 2209 can be electrically connected to an external terminal data output device to output insulating data parameters in real time. A suspension rod 2210 is suspended at the bottom of the U-shaped seat 2208. The suspension rod 2210 is slidably matched with the U-shaped seat 2208 and touches the wiring terminal at the bottom of the insulating test wire 2209. A pressure contact plate 2211 is fixedly installed at the bottom of the suspension rod 2210. The pressure contact plate 2211 contacts the terminal at the top of the capacitor, so that the insulating test assembly 22 tests the insulation parameters of the capacitor housing and outputs them to the terminal device.

[0027] In addition, a second telescopic spring 2212 is sleeved around the outer perimeter of the suspension rod 2210. The top and bottom ends of the second telescopic spring 2212 are fixedly connected to the U-shaped seat 2208 and the pressure contact plate 2211 respectively, so that the second telescopic spring provides a shock-absorbing structure for the U-shaped seat 2208 and the pressure contact plate 2211, enhancing the practicability of the equipment.

[0028] The working principle of the present invention is as follows: The two clamping arms of the pneumatic gripper 11 can clamp and transfer the capacitor, and under the combined action of the first cylinder 7, the first electric slide rail 9, the second motor 25, and the fifth cylinder 31, three capacitors are clamped and transferred to the conveyor belt 3. By starting the first motor 24, the capacitor can be conveyed below the withstand voltage test assembly 17. The three withstand voltage test assemblies 17 correspond to the three capacitors one by one. Under the combined action of the third motor 35, the second electric slide rail 15, and the sixth cylinder 1701, the bottom ends of the high-voltage input rod 1704 and the high-voltage test rod 1705 contact the terminals at the top of the capacitor, the high-voltage input rod 1704 continuously inputs current to the capacitor, and the high-voltage test rod 1705 feeds back data in real time and feeds it back to the terminal data analysis device, so that the withstand voltage test assembly 17 tests the parameter fluctuation data of the capacitor under the high-voltage energized condition.

[0029] After the above-mentioned withstand voltage test operation is completed, the capacitor is conveyed below the insulation test assembly 22 through the conveyor belt 3. Under the combined action of the third cylinder 18, the fourth cylinder 20, and the fourth motor 2202, the pressure contact plate 2211 contacts the terminal at the top of the capacitor, so that the insulation test assembly 22 tests the insulation parameters of the capacitor housing and outputs them to the terminal device, thus completing the insulation test operation for the capacitor.

[0030] Compared with the prior art, the device solves the pain points in the prior art such as time-consuming charging, excessive manual intervention, and poor equipment adaptability through full-automatic conveying and positioning, multi-station collaborative testing, and intelligent dynamic adjustment, and has the following core advantages: First, it improves efficiency. The testing process is shortened from the traditional 10 minutes per piece to 5 minutes per piece, supporting continuous assembly line operation; Second, it improves accuracy and reliability, meeting the strict requirements of DL / T 596-2021 for insulation resistance (≥2000 MΩ) and withstand voltage test (no breakdown); Finally, it greatly improves the expansion compatibility, providing an efficient and reliable testing solution for capacitor manufacturing and operation and maintenance; In summary, the present invention has a very broad application prospect.

[0031] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A capacitor insulation withstand voltage test device for a reactive power compensation device, comprising a base (1), characterized in that, A gantry (2) is provided on the side of the base (1). A conveyor belt (3) is installed inside the gantry (2). The conveyor belt (3) is used to stably convey capacitors. A first support seat (4), a second support seat (5), and a third support seat (6) are fixedly installed on the base (1). A first cylinder (7) is installed on the first support seat (4). The sliding direction of the piston rod of the first cylinder (7) is arranged parallel to the conveying direction of the conveyor belt (3). A first carrier plate (8) is fixedly installed at the end of the piston rod of the first cylinder (7). A first electric slide rail (9) arranged vertically is provided on the first carrier plate (8). A receiving plate (10) is slidably installed on the first electric slide rail (9). A pneumatic gripper (11) is fixedly installed on the side of the receiving plate (10). The pneumatic gripper (11) is used to clamp and transfer capacitors. A lead screw (12) arranged parallel to the conveying direction of the conveyor belt (3) is rotatably installed on the second support seat (5). A nut seat (13) is installed on the lead screw (12). A second carrier plate (14) is fixedly installed on the side of the nut seat (13). A second electric slide rail (15) arranged vertically is provided on the second carrier plate (14). A first assembly plate (16) is slidably installed on the second electric slide rail (15). A plurality of withstand voltage test components (17) are fixedly installed on the side of the first assembly plate (16). The withstand voltage test components (17) are used to test the parameter fluctuation data of capacitors under the condition of high-voltage energization. A third cylinder (18) is installed on the third support seat (6). The sliding direction of the piston rod of the third cylinder (18) is arranged perpendicular to the conveying direction of the conveyor belt (3). A third carrier plate (19) is fixedly installed at the end of the piston rod of the third cylinder (18). A fourth cylinder (20) is fixedly installed on the third carrier plate (19). The piston rod of the fourth cylinder (20) is arranged vertically and a second assembly plate (21) is fixedly installed at its end. An insulation test component (22) is fixedly installed on the side of the second assembly plate (21). The insulation test component (22) is used to test the insulation parameters of the capacitor housing.

2. The capacitor insulation withstand voltage testing equipment for a reactive power compensation device according to claim 1, characterized in that, Isolation plates (23) are provided on both sides of the conveyor belt (3). The isolation plates (23) are firmly connected to the gantry (2). The arrangement height of the conveyor belt (3) is the same as that of the base (1). The arrangement height of the top of the isolation plate (23) is higher than that of the conveyor belt (3). A first motor (24) is fixedly installed on the side of the isolation plate (23). The output shaft of the first motor (24) is in driving cooperation with the conveyor belt (3).

3. The capacitor insulation withstand voltage test equipment for a reactive power compensation device according to claim 1, characterized in that, A second motor (25) is fixedly installed on the first carrier plate (8). A first pulley (26) is fixedly sleeved on the end of the output shaft of the second motor (25). A second pulley (27) is rotatably installed on the first carrier plate (8). A first belt (28) is sleeved between the first pulley (26) and the second pulley (27) for transmission. A first slide rail (29) arranged parallel to the first belt (28) is arranged on the side of the first belt (28). The first slide rail (29) is perpendicular to the conveyor belt (3). A first slide block (30) is slidably installed on the first slide rail (29). The first slide block (30) is tightly clamped with the first belt (28). A fifth cylinder (31) is arranged on the side of the first slide block (30). The piston rod of the fifth cylinder (31) is vertically arranged. A sleeve plate (32) is fixedly installed at the end of the piston rod of the fifth cylinder (31). The first electric slide rail (9) is fixedly installed on the side of the sleeve plate (32).

4. The capacitor insulation withstand voltage test equipment for a reactive power compensation device according to claim 1, characterized in that, A first electric slide block (33) is vertically slidably installed on the first electric slide rail (9). The first electric slide block (33) is tightly connected with the receiving plate (10). An adhesive block (34) is fixedly installed on the side of the receiving plate (10). The adhesive block (34) is arranged between the two clamping arms of the pneumatic gripper (11).

5. A capacitor insulation withstand voltage testing device for a reactive power compensation device according to claim 1, characterized in that, A third motor (35) is fixedly installed on the side of the second support seat (5). The output shaft of the third motor (35) is in transmission cooperation with the lead screw (12). The inner side of the lead nut seat (13) is slidably matched with the second support seat (5). A plurality of second electric slide rails (15) are arranged at equal distances and evenly. Second electric slide blocks (36) are slidably installed on the second electric slide rails (15). The second electric slide blocks (36) are tightly connected with the assembly plate (16). A plurality of extension frames (37) arranged at equal distances and evenly are fixedly installed on the assembly plate (16). The extension frames (37) correspond to the withstand voltage test components (17) one by one.

6. The capacitor insulation withstand voltage test equipment for a reactive power compensation device according to claim 5, characterized in that, The withstand voltage test component (17) includes a sixth cylinder (1701) tightly connected with the extension frame (37). The piston rod of the sixth cylinder (1701) is vertically downward. A connecting support (1702) is fixedly installed at the end of the piston rod of the sixth cylinder (1701). A base (1703) is fixedly connected to the bottom of the connecting support (1702). A plurality of high-voltage input rods (1704) and high-voltage test rods (1705) are jointly installed between the connecting support (1702) and the base (1703). The tops of the high-voltage input rods (1704) and the high-voltage test rods (1705) are both arranged above the connecting support (1702). The bottoms of the high-voltage input rods (1704) and the high-voltage test rods (1705) are both arranged below the base (1703) and are both in contact with the terminals at the top of the capacitor.

7. The capacitor insulation withstand voltage test equipment for a reactive power compensation device according to claim 6, characterized in that, The high-voltage input rod (1704) and the high-voltage test rod (1705) are both slidably matched with the connecting support (1702) and the base (1703); the peripheries of the high-voltage input rod (1704) and the high-voltage test rod (1705) are both covered with a first telescopic spring (1706); the two ends of the telescopic spring (1706) are respectively fastened to the connecting support (1702) and the base (1703).

8. A capacitor insulation withstand voltage test device for a reactive power compensation device according to claim 1, characterized in that, The insulation test assembly (22) includes a vertical plate (2201) fastened to the second assembly plate (21), a fourth motor (2202) is fixedly mounted on the vertical plate (2201), a third pulley (2203) is fixedly mounted on the end of the output shaft of the fourth motor (2202), a fourth pulley (2204) is rotatably mounted on the second assembly plate (21), a second belt (2205) is mounted between the third pulley (2203) and the fourth pulley (2204), a second slide rail (2206) arranged parallel to the second belt (2205) is provided on the side of the second belt (2205), the second slide rail (2206) is arranged vertically, a second slide seat (2207) is slidably mounted on the second slide rail (2206), and the second slide seat (2207) is fastened and clamped to the second belt (2205).

9. The capacitor insulation withstand voltage testing equipment for a reactive power compensation device according to claim 8, characterized in that, A U-shaped seat (2208) is fixedly installed on the side of the second sliding seat (2207), an insulated test wire (2209) is fixedly installed on the top of the U-shaped seat (2208), a suspension rod (2210) is suspended at the bottom of the U-shaped seat (2208), the suspension rod (2210) and the U-shaped seat (2208) are slidably matched and contact the terminal at the bottom of the insulated test wire (2209), and a pressure touch plate (2211) is fixedly installed on the bottom of the suspension rod (2210), and the pressure touch plate (2211) contacts the terminal at the top of the capacitor.

10. A capacitor insulation withstand voltage test device for a reactive power compensation device according to claim 9, characterized in that, The outer three sides of the suspension rod (2210) are provided with a second telescopic spring (2212), and the top and bottom ends of the second telescopic spring (2212) are respectively fastened to the U-shaped seat (2208) and the pressure touch plate (2211).