A digital meter based on WAPI remote transmission

Abstract

The present invention discloses a digital meter based on WAPI remote transmission, which relates to the technical field of digital meters and includes: a digital remote transmission meter main body, a conductive column, an insulating fixed column, and a conductive gasket. The conductive column is fixedly connected to the digital remote transmission meter main body. The insulating fixed column is sleeved on the conductive column. The conductive gasket is fixed to the tail end of the conductive column through a fastening screw. Through the design of a multi-dimensional performance test component, it can simulate the real environment for the meter and effectively test the environmental adaptability. Through the alternating temperature and humidity cycle test, it can simulate the complex temperature and humidity changes encountered by the arrester leakage current remote transmission meter in different seasons and different regions, enabling the meter to experience various extreme temperature and humidity conditions before being put into actual use, and discovering potential problems caused by factors such as thermal expansion and contraction and material moisture absorption in advance, such as component deformation and connection loosening, thereby improving the adaptability of the meter to different environments.

Description

Technical Field

[0001] The present invention relates to the technical field of digital meters, and particularly to a digital meter based on WAPI remote transmission. Background Art

[0002] In the power system, lightning arresters are key devices to ensure the safe operation of electrical equipment. The high transient overvoltage generated during lightning strikes can cause serious damage to electrical equipment, while lightning arresters can effectively suppress such overvoltages, thereby protecting the equipment. In order to monitor the working state of lightning arresters in real time, leakage current remote transmission meters have emerged; these meters are connected in series with the lightning arrester and grounded, and undertake the important task of measuring the leakage current of the lightning arrester. By monitoring the leakage current, abnormal conditions of the lightning arrester can be detected in a timely manner to ensure its normal operation.

[0003] The leakage current remote transmission meter of a lightning arrester in the prior art includes a current transformer, a conductive column, an insulating fixing column, and a conductive gasket component; among them, the insulating fixing column plays a crucial role. It not only needs to ensure the stability of electrical connection but also provide reliable insulation performance. However, there are obvious deficiencies in the performance testing of the insulating fixing column at present.

[0004] The existing tests on the insulating fixing column mainly focus on tests such as insulation resistance, AC withstand voltage, and dielectric loss in terms of electrical performance, tensile strength, torsional resistance, and vibration stability in terms of mechanical performance, and dimensional accuracy, microscopic defects, and thermal aging in terms of shape and thermal performance; although these tests can reflect the performance of the insulating fixing column to a certain extent, there is a key problem, that is, the test environment is too idealized;

[0005] In the actual power operation scenario, the lightning arrester and its supporting leakage current remote transmission meter will face complex and changeable environmental conditions. For example, the temperature difference in different regions is extremely large, from dozens of degrees below zero in cold regions to high-temperature environments in hot regions; the humidity will also vary due to different climatic and geographical conditions. A high-humidity environment will cause the insulating material to absorb moisture, thereby affecting its performance; in addition, the air pressure also varies significantly in different altitude regions, and low air pressure will change the discharge characteristics and heat dissipation effect of the insulating fixing column; however, the existing technology lacks the simulation of these actual environmental factors in the test of the insulating fixing column;

[0006] The current devices used to test the leakage current remote transmission meters of lightning arresters also have many defects. Traditional testing equipment, such as constant temperature chambers and withstand voltage test benches, often cannot achieve the coordinated change test of multiple parameters such as temperature, humidity, and air pressure. Moreover, during the testing process, the meters are usually fixed by bench frames or simulation brackets, and this fixed structure will cause problems such as heat conduction, electromagnetic interference, and stress concentration, interfering with the test results and making the test results unable to truly reflect the performance of the insulating fixed column in the actual operating environment.

[0007] In summary, in order to more accurately evaluate the performance of the insulating fixed column in the leakage current remote transmission meter of the lightning arrester and improve its reliability in the actual complex environment, there is an urgent practical need to develop a testing device that can simulate various actual environmental parameters and adopt a reasonable fixing method.

[0008] Therefore, the present invention proposes a digital meter based on WAPI remote transmission to solve the above problems. Summary of the Invention

[0009] In view of this, the technical problem to be solved by the present invention is to propose a digital meter based on WAPI remote transmission to solve the problems existing in the prior art.

[0010] To achieve the above object, the present invention provides the following technical solution: A digital meter based on WAPI remote transmission, including: a digital remote transmission meter main body, a conductive column, an insulating fixed column, and a conductive gasket. The conductive column is fixedly connected to the digital remote transmission meter main body, the insulating fixed column is sleeved on the conductive column, and the conductive gasket is fixed to the end of the conductive column by a fastening screw. It also includes: a multi-dimensional performance testing component and an adaptability assisting component. The adaptability assisting component is located above the multi-dimensional performance testing component;

[0011] The multi-dimensional performance testing component is used to test the performance of the insulating fixed column under temperature, humidity, and air pressure conditions;

[0012] The adaptability assisting component is used to avoid interference factors in the testing space during the testing work.

[0013] Preferably, the multi-dimensional performance testing component includes a test box located outside the digital remote transmission meter main body. A cover plate is buckled on the upper end surface of the test box. Symmetric sliding channels are opened on the inner wall of the test box. A sliding member A is slidably connected in the sliding channel. A partition plate A is fixedly connected to the two sliding members A together.

[0014] Preferably, a sliding member B is slidably connected in the sliding channel. A partition plate B is fixedly connected to the two sliding members B together.

[0015] Preferably, the partition plate B is fixedly connected with line insertion holes at intervals through it, and sealing plugs are inserted into the line insertion holes.

[0016] Preferably, PTC ceramic heating sheets are symmetrically and fixedly connected to the partition plate A, semiconductor refrigeration components are symmetrically and fixedly connected to the partition plate A, salt spray spraying components are symmetrically and fixedly connected to the partition plate A, air pumps and sensor groups are symmetrically and fixedly connected to the partition plate A.

[0017] Preferably, the adaptive auxiliary component includes a semi-cylinder A fixedly connected to the outer wall of the test box, semi-cylinders B are symmetrically and fixedly connected to the outer wall of the cover plate, and a limiting ring is sleeved on the semi-cylinder A and the semi-cylinder B together.

[0018] Preferably, a circular groove A is opened in the upper part of the test box, and a circular sealing member A is fixedly connected in the circular groove A.

[0019] Preferably, a circular groove B is opened in the lower part of the cover plate, and a circular sealing member B is fixedly connected in the circular groove B.

[0020] Preferably, a conical main pipe is fixedly connected to the bottom surface of the cover plate, and a branch pipe is fixedly communicated with the conical main pipe.

[0021] Preferably, the outer end of the branch pipe is fixedly communicated with a first vertical pipe, the bottom end of the first vertical pipe is fixedly connected with a second vertical pipe, the first vertical pipe is communicated with the second vertical pipe, a spring is fixedly connected to the branch pipe, the bottom end of the spring is fixedly connected with a first sliding piece sliding in the first vertical pipe, and a second sliding piece is slidably connected in the second vertical pipe.

[0022] Compared with the prior art, the present invention provides a digital meter based on WAPI remote transmission, which has the following beneficial effects:

[0023] 1. Through the design of the multi-dimensional performance test component, the present invention can bring the following benefits to the use of the meter:

[0024] Simulate the real environment and improve the environmental adaptability: Through the alternating temperature and humidity cycle test, the complex temperature and humidity changes encountered by the arrester leakage current remote transmission meter in different seasons and different regions can be simulated, so that the meter can experience the tests of various extreme temperature and humidity conditions before being put into actual use, and potential problems caused by thermal expansion and contraction, material moisture absorption factors, such as component deformation and connection loosening, can be discovered in advance, thereby improving the adaptability of the meter to different environments;

[0025] Evaluating the impact of the salt spray environment: The salt spray spraying test can simulate the usage environment in areas with a relatively high salt spray concentration along the coast. It can effectively evaluate the impact of the conductive deposition layer formed by salt spray on the surface of the ceramic of the insulating fixed column on the performance of the meter, which helps to take targeted protective measures, such as improving insulating materials and adding protective coatings, to improve the reliability of the meter in a harsh salt spray environment;

[0026] Ensuring the measurement accuracy during the use of the meter and avoiding interface delamination interference: It is expected to detect the interface delamination caused by the difference in the expansion coefficients of the test materials, and be able to timely discover the interface separation problem that occurs during long-term use due to the different expansion coefficients of different materials. Interface delamination will cause uneven electric field distribution, which in turn affects the accuracy of current measurement. By detecting and solving such problems in advance, it can ensure that the meter can accurately measure the leakage current of the lightning arrester throughout its service life, providing reliable data support for the safe operation of the power system.

[0027] Monitoring the change of insulation performance: Both the alternating temperature and humidity cycle and the salt spray spraying test help to monitor the change of the insulation performance of the insulating fixed column under different environmental conditions; The decrease in insulation performance will lead to an increase in the measurement error of the leakage current, and even cause safety accidents. Through multi-dimensional performance tests, the change of insulation performance can be timely detected, so as to timely maintain or replace the meter to ensure the accuracy and safety of the measurement results.

[0028] 2. When the performance of the digital remote transmission meter for the leakage current of the lightning arrester is detected by the present invention using the partitioned suspended fixed detection method, the following benefits can be brought to the test:

[0029] Installation position and freedom: The existing methods mostly fix it on a bench or simulate the actual installation position, with a relatively fixed position and more contact with other components; While the suspended fixation makes the meter in a suspended state in the detection test box through partition board A and partition board B, and with the partition setting, there are no other objects directly contacting around the meter, having a higher degree of freedom, which can better simulate the independent operation state of the meter in space and reduce the influence of surrounding objects on it;

[0030] Independence of environmental simulation: Suspended fixation in the detection test box can more conveniently independently control and change the surrounding environmental parameters, such as humidity, temperature and air pressure; In contrast, the existing fixation methods will cause certain interference to the uniformity and independence of environmental parameters due to the existence of the bench or simulated installation structure, while the suspended fixation can make the meter more directly and evenly exposed to different set environments, improving the reliability of environmental simulation;

[0031] Improve the control accuracy of environmental parameters: Since the hanging fixation reduces the heat exchange and interaction with other objects, it is easier to control and maintain the stability of the environmental parameters such as humidity, temperature, and air pressure inside the detection box. For example, during the humidity change test, the humidity around the hanging meter changes more rapidly and evenly, which can more accurately simulate the working conditions of the meter in different humidity environments and helps to precisely evaluate the influence of the insulating fixing column on the meter performance under different humidity conditions. Similarly, in the temperature and air pressure tests, the environmental parameters can also be more accurately controlled, improving the accuracy of the test results.

[0032] 3. The design of the present invention, by adopting the first vertical pipe and the second vertical pipe with different pipe diameters and realizing pressure amplification based on Pascal's law to act on the loop seal B, can bring the following benefits to the overall test work:

[0033] Enhance the sealing performance and effectively block external interference: During the air pressure detection, through the pressure difference generated by different pipe diameters, the second sliding piece can apply a greater pressure to the loop seal B, thus ensuring the effective isolation of the test environment from the outside world. This can prevent the entry of external air into the test environment, avoid the influence on the meter caused by air pressure fluctuations, enable the meter to be tested under stable air pressure conditions, which helps to accurately evaluate the performance of the meter in a specific air pressure environment, reduce the measurement errors caused by environmental factors, and improve the accuracy and reliability of the test results.

[0034] Optimize the test process and reduce the test preparation time: The reliable sealing design makes the preparation work of the test environment more efficient. There is no need to spend a lot of time on multiple leak checks and adjustment of sealing measures, and a stable air pressure test environment can be quickly established, thus shortening the preparation time for each test and improving the overall efficiency of the test work.

[0035] Be compatible with different test parameters: Whether it is a test in a low-pressure or high-pressure environment, this design can achieve effective pressure control of the loop seal B by adjusting the pipe diameter ratio and gas auxiliary pressure, ensuring good sealing performance and test environment stability under various air pressure test parameters. Therefore, the test device can be compatible with different air pressure test parameters, meet a wider range of test requirements, and provide strong support for the comprehensive performance evaluation of the meter.

[0036] 4. By adopting a pipeline kit composed of a conical main pipe, branch pipes, a first vertical pipe, and a second vertical pipe, the present invention utilizes the air pressure existing in the test box as the driving force to achieve the sealing between the test box and the cover plate, completely eliminating the dependence on external power-driven equipment. This innovative design directly reduces the energy consumption costs generated by using external power equipment. For work scenarios with long-term and large-scale air pressure tests, it saves energy expenses. At the same time, there is no need to purchase, install, and maintain additional power-driven sealing equipment, greatly reducing the equipment procurement cost and subsequent maintenance costs, and effectively reducing the operational burden of the test work.

[0037] Greatly improving the test safety and stability: During the operation of external power-driven equipment, there are potential safety hazards such as electrical failures causing fires and electric shocks. However, the design of this pipeline kit eliminates this risk source and operates only relying on the air pressure in the test box, fundamentally preventing safety accidents caused by electrical problems and creating a safer working environment for test personnel. In addition, the external power supply is affected by power grid fluctuations and power outages, which affect the continuity and stability of the test. The present invention does not rely on external power, and the air pressure in the test box is relatively stable and can be independently regulated, ensuring that the sealing between the test box and the cover plate can be continuously and stably achieved under various external power conditions, guaranteeing that the air pressure test work is not affected by external power factors and improving the reliability and consistency of the test results.

[0038] Effectively simplifying the complexity of the test system: Traditional sealing systems relying on external power-driven are often complex in structure, including multiple components such as motors, controllers, and transmission devices. The installation and debugging process are cumbersome and prone to failures. In contrast, the design of this pipeline kit utilizes a simple air pressure principle to build a concise and efficient sealing power system through ingenious layout. Its structure is simple and clear, reducing a large number of complex electrical and mechanical components, not only reducing the probability of system failures but also making the installation and debugging work simple and easy. Test personnel do not need to have professional electrical knowledge and complex operation skills to quickly complete the installation and debugging of the equipment, greatly improving the usability and maintenance convenience of the test system. Description of the Drawings

[0039] Figure 1 It is a diagram showing the buckled state of the test box and the cover plate of the present invention;

[0040] Figure 2 It is a disassembled structure diagram of the test box after sectioning of the present invention;

[0041] Figure 3 It is a main structure diagram of the multi-dimensional performance test component in the present invention;

[0042] Figure 4 It is a top view of the main structure of the present invention;

[0043] Figure 5 Front view of the test box of the present invention after sectioning

[0044] Figure 6 Structural diagram of the cover plate, loop seal B, and conical main pipe of the present invention

[0045] Figure 7 Structural diagram of the conical main pipe, branch pipe, first vertical pipe, and second vertical pipe of the cover plate of the present invention after sectioning

[0046] Figure 8 Working state diagram of the adaptability auxiliary component of the present invention

[0047] Figure 9 External view of the present invention

[0048] In the figure:

[0049] 1. Digital remote transmission meter main body; 2. Conductive column; 3. Insulating fixing column; 4. Conductive gasket

[0050] 501. Test box; 502. Cover plate; 503. Sliding channel; 504. Sliding part A; 505. Partition plate A; 506. Sliding part B; 507. Partition plate B; 508. Line penetration hole; 509. Sealing plug; 510. PTC ceramic heating sheet; 511. Semiconductor refrigeration part; 512. Salt spray spraying part; 513. Air pump; 514. Sensor group

[0051] 601. Semi-cylinder A; 602. Semi-cylinder B; 603. Limiting ring; 604. Loop groove A; 605. Loop seal A; 606. Loop groove B; 607. Loop seal B; 608. Conical main pipe; 609. Branch pipe; 610. First vertical pipe; 611. First sliding piece; 612. Spring; 613. Second vertical pipe; 614. Second sliding piece Detailed implementation method

[0052] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention

[0053] Next, the present invention will be further described in detail according to the drawings and embodiments Embodiment

[0054] Please refer to Figures 1 to 5 as shown

[0055] To solve the problems mentioned in the technical solution, an embodiment of the present application provides a digital meter based on WAPI remote transmission, including: a digital remote transmission meter main body 1, a conductive column 2, an insulating fixing column 3, and a conductive gasket 4. The conductive column 2 is fixedly connected to the digital remote transmission meter main body 1. The insulating fixing column 3 is sleeved on the conductive column 2. The conductive gasket 4 is fixed to the end of the conductive column 2 through a fastening screw. It also includes: a multi-dimensional performance testing component and an adaptability assisting component. The adaptability assisting component is located above the multi-dimensional performance testing component;

[0056] The multi-dimensional performance testing component is used to test the performance of the insulating fixing column 3 under temperature, humidity, and air pressure conditions. The multi-dimensional performance testing component includes a test box 501 located outside the digital remote transmission meter main body 1. A cover plate 502 is buckled on the upper end face of the test box 501. Sliding channels 503 are symmetrically opened on the inner wall of the test box 501. A sliding member A504 is slidably connected in the sliding channels 503. A partition plate A505 is fixedly connected to the two sliding members A504 together. A sliding member B506 is slidably connected in the sliding channels 503. A partition plate B507 is fixedly connected to the two sliding members B506 together. Line insertion holes 508 are fixedly connected through the partition plate B507 at intervals. Sealing plugs 509 are inserted into the line insertion holes 508. PTC ceramic heating sheets 510 are symmetrically fixedly connected to the partition plate A505. Semiconductor refrigeration components 511 are symmetrically fixedly connected to the partition plate A505. Salt spray spraying components 512 are symmetrically fixedly connected to the partition plate A505. An air pump 513 and a sensor group 514 are symmetrically fixedly connected to the partition plate A505.

[0057] Among them:

[0058] The multi-dimensional performance testing component is used to test the performance of the insulating fixing column 3 under temperature, humidity, and air pressure conditions.

[0059] A parameter touch screen is arranged on the test box 501 to adjust the operating parameters of the PTC ceramic heating sheet 510, the semiconductor refrigeration component 511, the salt spray spraying component 512, and the air pump 513. At the same time, it can receive the information inside the test box 501 fed back by the sensor group 514 to assist in adjusting the parameters and complete the closed loop.

[0060] The sliding member A504 and the sliding member B506 are slidably adapted to the sliding channels 503.

[0061] Threaded openings are equidistantly opened in the sliding channels 503 to assist in fixing the positions of the sliding member A504 and the sliding member B506 through bolts.

[0062] The partition board A505 and the partition board B507 can divide the test chamber 501 into regions. In the present invention, the test chamber 501 is divided into three regions, which are the circuit region, the test region, and the isolation region from left to right. At the same time, the overall device can add partition regions according to the test requirements to test the performance of different parts of the meter.

[0063] Holes are provided on both the partition board A505 and the partition board B507 for the installation of test components.

[0064] The circuit insertion hole 508 is made of silica gel material and is used in conjunction with the sealing plug 509. Auxiliary components and sensor circuits can pass through it.

[0065] The sensor group 514 is composed of a temperature sensor, a humidity sensor, and a pressure sensor.

[0066] Further embodiments: Please refer to Figures 5 to 9 as shown:

[0067] The adaptive auxiliary component is used to avoid interference factors in the test space during the test work. The adaptive auxiliary component includes a semi-cylinder A601 fixedly connected to the outer wall of the test chamber 501, semi-cylinders B602 symmetrically and fixedly connected to the outer wall of the cover plate 502. A restraint ring 603 is sleeved on the semi-cylinder A601 and the semi-cylinder B602 together. A circular groove A604 is provided in the upper part of the test chamber 501, and a circular seal A605 is fixedly connected in the circular groove A604. A circular groove B606 is provided in the lower part of the cover plate 502, and a circular seal B607 is fixedly connected in the circular groove B606. A conical main pipe 608 is fixedly connected to the bottom surface of the cover plate 502. A branch pipe 609 is fixedly communicated with the conical main pipe 608. The outer end of the branch pipe 609 is fixedly communicated with a first vertical pipe 610. The bottom end of the first vertical pipe 610 is fixedly connected to a second vertical pipe 613. The first vertical pipe 610 is communicated with the second vertical pipe 613. A spring 612 is fixedly connected to the branch pipe 609. The bottom end of the spring 612 is fixedly connected to a first sliding piece 611 that slides in the first vertical pipe 610. A second sliding piece 614 is slidably connected in the second vertical pipe 613.

[0068] Among them:

[0069] The adaptive auxiliary component is used to avoid interference factors in the test space during the test work.

[0070] The circular seal A605 and the circular seal B607 are used in cooperation.

[0071] The spring 612 is used for the reset work of the first sliding piece 611.

[0072] The diameter of the second vertical pipe 613 is larger than the diameter of the first vertical pipe 610.

[0073] The second sliding piece 614 can push the loop seal B607 downward during its downward movement, causing it to move within the loop seal A605 and fit more closely with the loop seal A605.

[0074] The working principle of all the contents in the above embodiments is as follows:

[0075] The following is the working process of the multi-dimensional performance test component:

[0076] During use, first pass the conductive column 2 on the digital remote transmission meter body 1 through the hole on the partition plate B507, then sleeved the insulating fixing column 3 on the conductive column 2, and further slide the partition plate A505 to the side wall of the insulating fixing column 3 through the auxiliary sliding of the sliding piece A504 and the sliding channel 503. Reference can be made to the attached Figure 3 and the attached Figure 4 . Further, since it is known that threaded ports are equidistantly arranged in the sliding channel 503 to assist the sliding piece A504 and the sliding piece B506 to fix their positions through bolts. At this time, adjust the test components according to the attached Figure 4 After adjustment, fix the partition plate A505 and the partition plate B507 through bolts and threaded holes; furthermore, buckle the cover plate 502 on the test box 501. At this time, the semi-cylinders A601 and B602 on the test box 501 and the cover plate 502 will form a circular part. Then sleeve the limiting ring 603 on it. At this time, the preliminary preparation is completed;

[0077] Furthermore, the tester adjusts the operating parameters of the PTC ceramic heating sheet 510, the semiconductor refrigeration part 511, the salt spray spraying part 512, and the air pump 513 through the component lines passing through the line insertion holes 508 on the parameter touch screen of the test box 501, and at the same time receives the information inside the test box 501 fed back by the sensor group 514 to assist in adjusting the parameters and complete the closed loop;

[0078] During the adjustment test, it can be roughly divided into the following test conditions:

[0079] Alternating temperature and humidity cycle test: By alternately starting the PTC ceramic heating sheet 510 and the semiconductor refrigeration part 511, in the above situation, observe at what temperature and humidity and for how long the insulating fixing column 3 will show interface delamination due to the difference in the coefficient of thermal expansion of the material, and record the performance;

[0080] Salt spray corrosion: Since it is known that the partition plate A505 and the partition plate B507 can divide the test chamber 501 into regions, the present invention divides the test chamber 501 into three regions, which are the circuit region, the test region, and the isolation region from left to right. On this basis, the salt spray spraying member 512 sprays sodium chloride solution in the test region to observe under what solution concentration a conductive deposit will form on the ceramic surface of the insulating fixed column 3;

[0081] Air pressure test: The air pump 513 is used to suck and pump gas in the test region so that the test region is under different air pressures, thereby monitoring the performance of the meter under different air pressures;

[0082] Comprehensive test: By turning on or off the PTC ceramic heating sheet 510, the semiconductor refrigeration member 511, the salt spray spraying member 512, and the air pump 513, the test components are subjected to performance tests in two or more different simulated environments;

[0083] Through the alternating temperature and humidity cycle test, it can simulate the complex temperature and humidity changes encountered by the arrester leakage current remote transmission meter in different seasons and different regions. Before the meter is put into actual use, it can experience various extreme temperature and humidity conditions, and potential problems caused by thermal expansion and contraction, material moisture absorption factors, such as component deformation and connection loosening, can be discovered in advance, thereby improving the adaptability of the meter to different environments;

[0084] Evaluating the influence of the salt spray environment: The salt spray spraying test can simulate the use environment in areas with a relatively high salt spray concentration along the coast, and can effectively evaluate the influence of the conductive deposition layer formed by the salt spray on the ceramic surface of the insulating fixed column 3 on the performance of the meter, which helps to take targeted protective measures, such as improving insulating materials and adding protective coatings, to improve the reliability of the meter in a harsh salt spray environment;

[0085] Ensuring the measurement accuracy of the meter during use and avoiding interface delamination interference: It is expected to test the interface delamination caused by differences in the thermal expansion coefficients of the test materials, and the interface separation problem that occurs during long-term use due to different thermal expansion coefficients of different materials can be discovered in time. Interface delamination will cause uneven electric field distribution, which will in turn affect the accuracy of current measurement. By discovering and solving such problems in advance through testing, it can be ensured that the meter can accurately measure the leakage current of the arrester throughout its service life, providing reliable data support for the safe operation of the power system.

[0086] Monitoring the change of insulation performance: Both the alternating temperature and humidity cycle and the salt spray spraying test help to monitor the change of the insulation performance of the insulating fixed column 3 under different environmental conditions; the decrease of insulation performance will lead to an increase in the measurement error of the leakage current, and even cause safety accidents. Through multi-dimensional performance tests, the change of insulation performance can be discovered in time, so as to maintain or replace the meter in time to ensure the accuracy and safety of the measurement results.

[0087] Furthermore, when the performance test of the arrester leakage current digital remote transmission meter is carried out, the partitioned suspended fixed test method is adopted to provide the test with installation position and freedom; the existing methods are mostly fixed on the bench or simulated actual installation position, the position is relatively fixed and has more contact with other components; and the suspended fixation is to put the meter in the test box 501 through the partition A505 and the partition B507 to make it suspended, and the partition setting means that there is no direct contact with other objects around the meter, which has a higher degree of freedom, can better simulate the independent operation state of the meter in space, and reduce the influence of surrounding objects on it;

[0088] Independence of environmental simulation: The meter is suspended and fixed in the test box 501, which can more easily and independently control and change the surrounding environmental parameters, such as humidity, temperature and air pressure. In contrast, the existing fixing method will interfere with the uniformity and independence of environmental parameters due to the presence of the bench or simulation installation structure, while the suspended fixing method can make the meter more directly and evenly exposed to different set environments, thereby improving the reliability of environmental simulation.

[0089] Improve the accuracy of environmental parameter control: Since the suspended fixing reduces the heat exchange and interaction with other objects, the humidity, temperature and air pressure environmental parameters in the test box are easier to control and keep stable; for example, when conducting humidity change tests, the humidity around the suspended meter changes more quickly and evenly, which can more accurately simulate the working conditions of the meter in different humidity environments, and help to accurately evaluate the impact of the insulating fixing column 3 on the performance of the meter under different humidity conditions; similarly, in temperature and air pressure tests, environmental parameters can be controlled more accurately to improve the accuracy of test results;

[0090] Please refer to the above working process Figures 1 to 5 .

[0091] Here is how the adaptive assist component works:

[0092] Furthermore, when the air pump 513 pumps gas into the test area, due to the gas, the test box 501 and the cover plate 502 are about to separate, and a gap will be generated between them. The gap will affect the test accuracy. The above situation can be effectively avoided through design; specifically, the gas will enter the branch pipe 609 from the conical main through pipe 608, and the branch pipe 609 will transfer the gas to the first vertical pipe 610. At this time, the first sliding sheet 611 in the first vertical pipe 610 will push the gas between the first sliding sheet 611 and the second sliding sheet 614. Please refer to the attached Figure 8, at this time, the second sliding piece 614 will push the loop seal B607 in the loop groove B606 under the action of gas, so that the loop seal B607 fits more tightly with the loop seal A605 in the loop groove A604. At this time, a tight seal is formed between the semi-cylinder A601 and the cover plate 502 by the loop seal A605 and the loop seal B607, which can effectively ensure the stable air pressure in the test chamber 501 and the cover plate 502;

[0093] Furthermore, through the design of the multi-dimensional performance test component, the use of the meter can be simulated in a real environment, improving the environmental adaptability;

[0094] Furthermore, by adopting the first vertical pipe 610 and the second vertical pipe 613 with different pipe diameters, the design of realizing pressure amplification based on Pascal's law to act on the loop seal B607 can enhance the sealing performance of the overall test work and effectively block external interference; during air pressure detection, due to the pressure difference generated by different pipe diameters, the second sliding piece 614 can apply a greater pressure to the loop seal B607, thereby ensuring the effective isolation of the test environment from the outside world. This can prevent external air from entering the test environment, avoid the influence on the meter caused by air pressure fluctuations, enable the meter to be tested under stable air pressure conditions, which helps to accurately evaluate the performance of the meter in a specific air pressure environment, reduce measurement errors caused by environmental factors, and improve the accuracy and reliability of the test results;

[0095] Optimize the test process and reduce the test preparation time: The reliable sealing design makes the preparation work of the test environment more efficient; there is no need to spend a lot of time on multiple leak checks and adjustment of sealing measures, and a stable air pressure test environment can be quickly established, thus shortening the preparation time for each test and improving the overall efficiency of the test work;

[0096] Be compatible with different test parameters: Whether it is a test in a low-pressure or high-pressure environment, this design can achieve effective pressure control of the loop seal B607 by adjusting the pipe diameter ratio and gas-assisted pressure, ensuring good sealing performance and test environment stability under various air pressure test parameters; therefore, the test device can be compatible with different air pressure test parameters, meet a wider range of test requirements, and provide strong support for the comprehensive performance evaluation of the meter.

[0097] Furthermore, by adopting a pipeline kit composed of a conical main pipe 608, a branch pipe 609, a first vertical pipe 610, and a second vertical pipe 613, the air pressure existing in the test box 501 is utilized as the power to achieve the sealing between the test box 501 and the cover plate 502, completely eliminating the dependence on external power-driven equipment. This innovative design directly reduces the energy consumption costs generated by using external power equipment. For work scenarios with long-term and large-scale air pressure tests, it saves energy expenses. At the same time, there is no need to purchase, install, and maintain additional power-driven sealing equipment, greatly reducing the equipment procurement cost and subsequent maintenance costs, and effectively alleviating the operation burden of the test work.

[0098] Greatly improving the test safety and stability: During the operation of external power-driven equipment, there are potential safety hazards of fire and electric shock caused by electrical failures. However, the design of this pipeline kit eliminates this risk source and only relies on the air pressure in the test box 501 to work, fundamentally preventing safety accidents caused by electrical problems and creating a safer working environment for test personnel. In addition, the external power supply is affected by factors such as power grid fluctuations and power outages, which affect the continuity and stability of the test. The present invention does not rely on external power, and the air pressure in the test box 501 is relatively stable and can be autonomously regulated, ensuring that the sealing between the test box 501 and the cover plate 502 can be continuously and stably achieved under various external power conditions, protecting the air pressure test work from being affected by external power factors and improving the reliability and consistency of the test results.

[0099] Effectively simplifying the complexity of the test system: Traditional sealing systems that rely on external power drives often have complex structures, including multiple components such as motors, controllers, and transmission devices. The installation and commissioning process is cumbersome and prone to failures. In contrast, the design of this pipeline kit utilizes a simple air pressure principle to build a simple and efficient sealing power system through a clever layout. Its structure is simple and clear, reducing a large number of complex electrical and mechanical components, not only reducing the probability of system failures but also making the installation and commissioning work simple and easy. Test personnel do not need to have professional electrical knowledge and complex operation skills to quickly complete the installation and commissioning of the equipment, greatly improving the usability and maintenance convenience of the test system.

[0100] Please refer to the above working process Figures 5 to 9 。

[0101] It should be noted that, in this document, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprising", "including" or any other variant thereof are intended to cover non-exclusive inclusion, such that a process, method, article or device comprising a series of elements not only includes those elements but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising an..." does not exclude the presence of additional identical elements in the process, method, article or device comprising said element.

[0102] Although embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A digital meter based on WAPI remote transmission, comprising: Digital remote transmission meter main body (1), conductive column (2), insulating fixed column (3), conductive gasket (4). The conductive column (2) is fixedly connected to the digital remote transmission meter main body (1). The insulating fixed column (3) is sleeved on the conductive column (2). The conductive gasket (4) is fixed to the tail end of the conductive column (2) by fastening screws. It is characterized in that it further includes: a multi-dimensional performance test component and an adaptability auxiliary component. The adaptability auxiliary component is located above the multi-dimensional performance test component. The multi-dimensional performance test component is used to test the performance of the insulating fixed column (3) under temperature, humidity and air pressure conditions. The adaptability auxiliary component is used to avoid interference factors in the test space during the test work. The multi-dimensional performance test component includes a test box (501) located outside the digital remote transmission meter main body (1). A cover plate (502) is buckled on the upper end face of the test box (501). A conical main pipe (608) is fixedly connected to the bottom surface of the cover plate (502). A branch pipe (609) is fixedly communicated with the conical main pipe (608). The outer end of the branch pipe (609) is fixedly communicated with a first vertical pipe (610). The bottom end of the first vertical pipe (610) is fixedly connected to a second vertical pipe (613). The first vertical pipe (610) is communicated with the second vertical pipe (613). A spring (612) is fixedly connected to the branch pipe (609). The bottom end of the spring (612) is fixedly connected to a first sliding piece (611) sliding in the first vertical pipe (610). A second sliding piece (614) is slidably connected in the second vertical pipe (613).

2. The digital meter based on WAPI remote transmission according to claim 1, wherein: Sliding channels (503) are symmetrically opened on the inner wall of the test box (501). A sliding member A (504) is slidably connected in the sliding channel (503). A partition plate A (505) is fixedly connected to the two sliding members A (504) together.

3. The digital meter based on WAPI remote transmission according to claim 2, characterized in that: A sliding member B (506) is slidably connected in the sliding channel (503). A partition plate B (507) is fixedly connected to the two sliding members B (506) together.

4. The digital meter based on WAPI remote transmission according to claim 3, wherein: Line insertion holes (508) are fixedly connected to the partition plate B (507) at intervals and penetrate through. Sealing plugs (509) are plugged on the line insertion holes (508).

5. The digital meter based on WAPI remote transmission according to claim 2, characterized in that: PTC ceramic heating sheets (510) are symmetrically fixedly connected to the partition plate A (505). Semiconductor refrigeration components (511) are symmetrically fixedly connected to the partition plate A (505). Salt spray spraying components (512) are symmetrically fixedly connected to the partition plate A (505). Air pumps (513) and sensor groups (514) are symmetrically fixedly connected to the partition plate A (505).

6. The digital meter based on WAPI remote transmission according to claim 2, characterized in that: The adaptability auxiliary component includes a semi-cylinder A (601) fixedly connected to the outer wall of the test box (501). Semi-cylinders B (602) are symmetrically fixedly connected to the outer wall of the cover plate (502). A limiting ring (603) is sleeved on the semi-cylinder A (601) and the semi-cylinder B (602) together.

7. A digital meter based on WAPI remote transmission according to claim 2, characterized in that: The upper part of the test chamber (501) is provided with a rectangular groove A (604), and a rectangular seal A (605) is fixedly connected in the rectangular groove A (604).

8. The digital meter based on WAPI remote transmission according to claim 2, characterized in that: The lower part of the cover plate (502) is provided with a rectangular groove B (606), and a rectangular seal B (607) is fixedly connected in the rectangular groove B (606).

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