Grading ring electric field intensity testing device

Abstract

The utility model provides a grading ring electric field intensity testing device comprising an adapter plate and a connecting disc, the top of the adapter plate is fixedly provided with the connecting disc, the connecting disc is fixedly connected with a plurality of positioning studs, a grading ring is arranged above the connecting disc, the bottom of the grading ring is fixedly connected with a plurality of supports, the plurality of supports are provided with current transformers, and the current transformers are connected with the connecting disc. The bottoms of the plurality of brackets are fixedly connected with the screw sleeves, the screw sleeves are fixedly mounted on the plurality of positioning studs, the plurality of screw sleeves at the bottoms of the brackets are aligned with the plurality of positioning studs to mount the grading ring, and the current transformers on the plurality of brackets can accurately measure the electric field intensity of each position of the grading ring, so that the balanced distribution of the electric field intensity is realized; and the accuracy and the stability of the test are effectively improved.

Description

Technical Field

[0001] This utility model relates to the field of arc straightening machines, and in particular to a device for testing the electric field strength of an equalizing ring. Background Technology

[0002] An equalizing ring is a metal ring used in power systems, especially on high-voltage equipment, to uniformly distribute the electric field intensity. It is usually installed on top of insulators and reduces the non-uniformity of the electric field through its ring structure, thereby reducing the possibility of partial discharge. The design and material selection of equalizing rings are crucial to their performance; they must be able to withstand high voltages without corona discharge or breakdown.

[0003] Because the existing technology for testing the electric field strength of equalizing rings is insufficient, voltage distribution measurement and simulation experiments are usually used, which leads to certain errors in the test results and affects the actual application effect of equalizing rings.

[0004] To address this issue, a voltage equalization ring electric field strength testing device is proposed. Utility Model Content

[0005] To overcome the shortcomings of the existing technology, this utility model provides a device for testing the electric field strength of an equalizing ring.

[0006] This utility model is achieved using the following technical solution:

[0007] An electric field strength testing device for an equalizing ring, comprising:

[0008] An adapter plate, wherein a connecting plate is fixedly installed on the top of the adapter plate, and a plurality of positioning studs are fixedly connected to the connecting plate;

[0009] An equalizing ring is located above the connecting plate. Multiple brackets are fixedly connected to the bottom of the equalizing ring. Current transformers are installed on each of the multiple brackets, and threaded sleeves are fixedly connected to the bottom of the multiple brackets. The threaded sleeves are fixedly installed on multiple positioning studs.

[0010] Both ends of the adapter plate are fixedly connected to mounting sleeves, and both ends of the bottom of the adapter plate are fixedly connected to second movable rods. A second movable block is fixedly connected inside the second movable rod, and a third movable rod is fixedly connected inside the second movable block. A third movable block is fixedly connected inside the third movable rod, and a lower wiring device is fixedly connected to the bottom of the third movable block.

[0011] As a preferred embodiment of this utility model, connectors are fixedly connected to both sides of the adapter plate. An upper connecting block is fixedly connected to one side of the connector, and a lower connecting block is fixedly connected to the other side of the connector. A test rod is fixedly connected to the top of the upper connecting block. The test rod is connected to the mounting sleeve, and an upper current transformer is fixedly installed at both ends of the test rod.

[0012] As a preferred embodiment of this utility model, a limit rod is fixedly connected to the bottom of the lower connecting block, an adapter block is fixedly installed at the bottom of the limit rod, telescopic devices are fixedly connected to both sides of the adapter block, the telescopic devices are connected to the lower wiring device, and a lower current transformer is fixedly installed on the telescopic device.

[0013] In a preferred embodiment of this utility model, the mounting sleeve is internally threaded with a screw rod, the top of the screw rod is fixedly connected to a limit block, a first movable rod is fixedly connected inside the limit block, and an upper wire support is fixedly connected to the first movable rod.

[0014] As a preferred embodiment of this utility model, two positioning posts are fixedly installed on one side of the upper wire support, and two hinges are fixedly installed on the side of the upper wire support away from the positioning posts. Each of the two hinges is fixedly equipped with a wire clamp, and the wire clamp is fixed to the side of the upper wire support by the positioning posts.

[0015] As a preferred embodiment of this utility model, a connecting sleeve is fixedly connected to the middle position of the top of the connecting plate, and an arc extinguishing device is fixedly connected inside the connecting sleeve.

[0016] Compared with existing technologies, the advantages of this utility model are:

[0017] 1. By using current transformers on multiple brackets connected to the bottom of the equalizing ring in conjunction with the adapter plate, the electric field strength at each position of the equalizing ring can be accurately measured, achieving a balanced distribution of electric field strength and effectively improving the accuracy and stability of the test.

[0018] 2. The test rod, fixedly connected to the upper connecting rod and the threaded sleeve via the upper and lower connecting blocks of the connector, is fixedly connected to the test rod. The upper current transformer can detect the voltage of the line inside the upper support and realize real-time current monitoring. The adapter block at the bottom of the limit rod is connected to the lower wiring device through a telescopic device, enabling the lower current transformer to accurately capture the dynamic changes of the line. Together with the upper current transformer and the current transformer, it forms a complete current and voltage monitoring system, further optimizing the operating efficiency of the power equipment.

[0019] 3. By connecting the telescopic device to the lower wiring device, it can detect the current and protect the lower wiring fixing device, reduce wear caused by the dynamic expansion and contraction of the line, and extend the service life of the equipment.

[0020] 4. Multiple brackets at the bottom of the equalizing ring are fixedly connected with threaded sleeves, which are then fixed to the positioning studs for easy installation and maintenance. Attached Figure Description

[0021] Figure 1This is a structural diagram of the adapter plate of this utility model;

[0022] Figure 2 This is an exploded view of the present invention;

[0023] Figure 3 This is a structural diagram of the upper and lower wire support of this utility model;

[0024] Figure 4 This is a structural diagram of the equalizing ring of this utility model;

[0025] Figure 5 This is a structural diagram of the lower wiring device of this utility model;

[0026] In the diagram: 1. Adapter plate; 2. Mounting sleeve; 3. Screw; 4. Limiting block; 5. First movable rod; 6. First limiting block; 7. Upper wire support; 8. Hinge; 9. Wire clamp; 10. Positioning post; 11. Second movable rod; 12. Second movable block; 13. Third movable rod; 14. Third movable block; 15. Lower wiring device; 16. Connecting plate; 17. Connecting sleeve; 18. Arc extinguishing device; 19. Positioning stud; 20. Screw sleeve; 21. Bracket; 22. Current transformer; 23. Equalizing ring; 24. Connector; 25. Upper connecting block; 26. Test rod; 27. Upper current transformer; 28. Lower connecting block; 29. ​​Limiting rod; 30. Adapter block; 31. Telescopic device; 32. Lower current transformer. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0028] Example:

[0029] Please see Figures 1-5 A device for testing the electric field strength of an equalizing ring, comprising:

[0030] Adapter plate 1, with a connecting plate 16 fixedly installed on the top of the adapter plate 1, and a plurality of positioning studs 19 fixedly connected to the connecting plate 16;

[0031] The equalizing ring 23 is located above the connecting plate 16. Multiple brackets 21 are fixedly connected to the bottom of the equalizing ring 23. Current transformers 22 are installed on each of the multiple brackets 21. Screw sleeves 20 are fixedly connected to the bottom of the multiple brackets 21. The screw sleeves 20 are fixedly installed on multiple positioning studs 19.

[0032] Both ends of the adapter plate 1 are fixedly connected to mounting sleeves 2. Both ends of the bottom of the adapter plate 1 are fixedly connected to second movable rods 11. A second movable block 12 is fixedly connected inside the second movable rod 11. A third movable rod 13 is fixedly connected inside the second movable block 12. A third movable block 14 is fixedly connected inside the third movable rod 13. A lower wiring device 15 is fixedly connected to the bottom of the third movable block 14.

[0033] In this embodiment, the adapter plate 1 is used to connect various components. Mounting sleeves 2 are fixedly connected to both ends of the adapter plate 1. A second movable block 12 is fixedly connected inside the second movable rod 11, a third movable rod 13 is fixedly connected inside the second movable block 12, and a third movable block 14 is fixedly connected inside the third movable rod 13, to achieve stability and flexibility of the overall structure. A lower wiring device 15 is fixedly connected to the bottom of the third movable block 14 for connecting wiring. A connecting plate 16 is fixedly connected to the top of the adapter plate 1. The plate 16 is fixedly connected to multiple positioning studs 19, and an equalizing ring 23 is provided on the top of the connecting plate 16. Multiple brackets 21 are fixedly connected to the bottom of the equalizing ring 23, and current transformers 22 are fixedly connected to each of the brackets 21. The current transformers 22 are used to monitor the electric field strength in real time. When the electric field strength exceeds a preset value, the equalizing ring 23 can automatically adjust the electric field distribution to maintain the electric field stability, thereby ensuring the accuracy of the test data. The screw sleeves 20 fixedly connected to the bottom of the multiple brackets 21 facilitate the installation and maintenance of the equalizing ring 23 through precise positioning and fixation.

[0034] Specifically, both sides of the adapter plate 1 are fixedly connected to connectors 24. One connector 24 is fixedly connected to an upper connector 25, and the other connector 24 is fixedly connected to a lower connector 28. The top of the upper connector 25 is fixedly connected to a test rod 26. The test rod 26 is connected to the mounting sleeve 2, and both ends of the test rod 26 are fixedly installed with upper current transformers 27.

[0035] In this embodiment, there are two connectors 24, both fixedly connected to both sides of the adapter plate 1. One connector 24 is fixedly connected to an upper connecting block 25, and the other connector 24 is fixedly connected to a lower connecting block 28. A test rod 26 is fixedly connected to the top of the upper adapter block 30. The two ends of the test rod 26 are connected to the mounting sleeve 2. The test rod 26 has good conductivity. Both ends of the test rod 26 are fixedly installed with upper current transformers 27, which can effectively introduce the electric field into the current transformer 22, and further realize the accurate measurement of the electric field strength.

[0036] Specifically, a limit rod 29 is fixedly connected to the bottom of the lower connecting block 28, and an adapter block 30 is fixedly installed at the bottom of the limit rod 29. Telescopic devices 31 are fixedly connected to both sides of the adapter block 30. The telescopic devices 31 are connected to the lower wiring device 15, and a lower current transformer 32 is fixedly installed on the telescopic devices 31.

[0037] In this embodiment, a limiting rod 29 is fixedly connected to the bottom of the lower connecting block 28, and a transition block 30 is fixedly connected to the bottom of the limiting rod 29. Telescopic devices 31 are fixedly connected to both sides of the transition block 30, and the telescopic devices 31 are connected to the lower wiring device 15. The telescopic devices 31 provide protection for the lower wiring device. When the line is fixed in the lower wiring device 15, the telescopic devices 31 effectively buffer the second movable block 12 and the third movable block 14, reducing the vibration caused by external factors and ensuring the stable transmission of line signals. A lower current transformer 32 is fixedly connected to the telescopic device 31. The lower current transformer 32 can accurately capture the dynamic changes of the line current and works in conjunction with the upper current transformer 27 and the current transformer 22 to form a complete current and voltage monitoring system, thereby realizing real-time monitoring of the entire circuit and ensuring the safe and stable operation of the power system.

[0038] Specifically, the mounting sleeve 2 is internally threaded with a screw 3, the top of the screw 3 is fixedly connected to a limit block 4, the limit block 4 is fixedly connected to a first movable rod 5, and the first movable rod 5 is fixedly connected to an upper wire support 7.

[0039] In this embodiment, a screw 3 is connected inside the mounting sleeve 2, and a limiting block 4 is fixedly connected to the top of the screw 3. A first movable rod 5 is fixedly connected inside the limiting block 4, and an upper wire support 7 is fixedly connected to the first movable rod 5. The upper wire support 7 is used for line installation. The line is finely adjusted by the first movable rod 5, which facilitates accurate placement and adjustment of the line position. The screw 3 is connected to the mounting sleeve 2 by internal thread, which facilitates the disassembly and installation of the limiting block 4 and the upper wire support 7.

[0040] Specifically, two positioning posts 10 are fixedly installed on one side of the upper wire support 7, and two hinges 8 are fixedly installed on the side of the upper wire support 7 away from the positioning posts 10. Each of the two hinges 8 is fixedly installed with a wire clamp 9, and the wire clamp 9 is fixed to the side of the upper wire support 7 by the positioning posts 10.

[0041] In this embodiment, two positioning posts 10 are fixedly connected to one side of the upper cable tray 7, and two hinges 8 are fixedly connected to the other side of the upper cable tray 7. Each of the two hinges 8 is fixedly connected with a wire clamp 9. The wire clamp 9 cooperates with the positioning posts 10, and the wire clamp 9 is fixed to the side of the upper cable tray 7 by the positioning posts 10 to ensure stable installation of the line.

[0042] Specifically, a connecting sleeve 17 is fixedly connected to the top center of the connecting plate 16, and an arc extinguishing device 18 is fixedly connected inside the connecting sleeve 17.

[0043] In this embodiment, a connecting sleeve 17 is fixedly installed at the top center of the connecting plate 16, and an arc extinguishing device 18 is fixedly installed inside the connecting sleeve 17. The connecting sleeve 17 and the arc extinguishing device 18 are precisely matched to effectively prevent electric arcs caused by excessive current and ensure the safe operation of power equipment.

[0044] The principle of this utility model is as follows: First, the screw 3 is spirally installed inside the mounting sleeve 2. Then, through the cooperation of the limiting block 4 and the first movable rod 5, the upper line support 7 is accurately positioned, and the upper line is fixed inside the upper line support 7. It is stabilized by the wire clamps 9 on the two positioning posts 10 to ensure that the line will not loosen during transmission. Then, the lower line is fixedly installed inside the lower wiring device 15. Then, the multiple screw sleeves 20 at the bottom of the bracket 21 are aligned with the multiple positioning studs 19 to install the equalizing rings 23. At the same time, the arc extinguishing device 18 is fixedly installed inside the connecting sleeve 17. In actual use, the current transformer 22 on the bracket 21, the upper line transformers 27 at both ends of the test rod 26 and the lower line transformer 32 on the telescopic device 31 are used together to form a complete current and voltage monitoring system, which further optimizes the operating efficiency of the power equipment.

[0045] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model based on the technical solution and its improved concept should be covered within the protection scope of the present utility model.

Claims

1. A device for testing the electric field strength of an equalizing ring, characterized in that, include: An adapter plate, wherein a connecting plate is fixedly installed on the top of the adapter plate, and a plurality of positioning studs are fixedly connected to the connecting plate; An equalizing ring is located above the connecting plate. Multiple brackets are fixedly connected to the bottom of the equalizing ring. Current transformers are installed on each of the multiple brackets, and threaded sleeves are fixedly connected to the bottom of the multiple brackets. The threaded sleeves are fixedly installed on multiple positioning studs. Both ends of the adapter plate are fixedly connected to mounting sleeves, and both ends of the bottom of the adapter plate are fixedly connected to second movable rods. A second movable block is fixedly connected inside the second movable rod, and a third movable rod is fixedly connected inside the second movable block. A third movable block is fixedly connected inside the third movable rod, and a lower wiring device is fixedly connected to the bottom of the third movable block.

2. The electric field strength testing device for an equalizing ring according to claim 1, characterized in that: Both sides of the adapter plate are fixedly connected to connectors. An upper connecting block is fixedly connected to one connector, and a lower connecting block is fixedly connected to the other connector. A test rod is fixedly connected to the top of the upper connecting block. The test rod is connected to the mounting sleeve, and an upper current transformer is fixedly installed at both ends of the test rod.

3. The electric field strength testing device for an equalizing ring according to claim 2, characterized in that: A limit rod is fixedly connected to the bottom of the lower connecting block, and an adapter block is fixedly installed at the bottom of the limit rod. Telescopic devices are fixedly connected to both sides of the adapter block. The telescopic devices are connected to the lower wiring device, and a lower current transformer is fixedly installed on the telescopic devices.

4. The electric field strength testing device for an equalizing ring according to claim 3, characterized in that: The mounting sleeve is internally threaded with a screw rod, and a limit block is fixedly connected to the top of the screw rod. A first movable rod is fixedly connected inside the limit block, and an upper wire support is fixedly connected to the first movable rod.

5. The electric field strength testing device for an equalizing ring according to claim 4, characterized in that: Two positioning posts are fixedly installed on one side of the upper wire support, and two hinges are fixedly installed on the side of the upper wire support away from the positioning posts. Each of the two hinges is fixedly equipped with a wire clamp, and the wire clamp is fixed to the side of the upper wire support by the positioning posts.

6. The electric field strength testing device for an equalizing ring according to claim 5, characterized in that: A connecting sleeve is fixedly connected to the top center of the connecting plate, and an arc-extinguishing device is fixedly connected inside the connecting sleeve.

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