Limit voltage experiment structure for power-on test in transformer production

Abstract

The invention discloses a power-on test limit voltage experiment structure for transformer production, and the structure is applied to the technical field of transformer testing. Different environment conditions can be simulated through the humidity simulation assembly and the temperature simulation assembly arranged in the environment simulation cabin, the transformer is comprehensively tested, the adaptability and reliability of the transformer to different environments are improved, the limit voltage borne by the transformer in the different environments can be tested, and the test accuracy is improved. According to the invention, the limit voltage of the transformer under different environmental conditions can be tested more accurately, and a transformer limit voltage test system adapting to environmental factors is matched to intelligently adjust test parameters and strategies, so that the test time and cost are reduced, and the test efficiency is improved, thereby more accurately testing the limit voltage of the transformer under different environmental conditions, and providing more reliable basis for the design, production and operation of the transformer.

Description

Technical Field

[0001] The invention belongs to the technical field of transformer testing, and in particular relates to a transformer production power-on test limit voltage experimental structure. Background Art

[0002] A transformer is a device that uses the principle of electromagnetic induction to change AC voltage. Its main components are the primary coil, secondary coil and iron core. Its main functions include: voltage conversion, current conversion, impedance conversion, isolation, voltage stabilization, etc.

[0003] In the actual operation of the transformer, environmental factors such as temperature and humidity will have a significant impact on the ultimate voltage that the transformer can withstand. However, the traditional test method for the ultimate voltage of the transformer during the production process often ignores these environmental factors, resulting in deviations between the test results and the actual operation conditions. It cannot accurately reflect the performance and reliability of the transformer under different environmental conditions, and thus cannot provide a reliable basis for the design, production and operation of the transformer.

[0004] Combining the above-mentioned problems, we can find that it is difficult to avoid the above-mentioned problems when using the existing devices on the market, thus failing to achieve the desired effect. Therefore, we propose a transformer production power-on test limit voltage experimental structure that can consider the impact of environmental factors on the transformer's withstand limit voltage when in use, and can more accurately test the transformer's limit voltage under different environmental conditions, providing a more reliable basis for the design, production and operation of the transformer. Summary of the invention

[0005] The purpose of the present invention is to test the limiting voltage of an existing transformer production power-on test structure. The advantage of the present invention is that by setting an environmental simulation cabin and a transformer limiting voltage test system that adapts to environmental factors, the humidity simulation component and the temperature simulation component built into the environmental simulation cabin can simulate different environmental conditions, and the transformer can be comprehensively tested, thereby improving the adaptability and reliability of the transformer to different environments. The limiting voltage that the transformer can withstand in different environments can be tested, and the transformer limiting voltage test system that adapts to environmental factors can be used to intelligently adjust the test parameters and strategies, thereby reducing the test time and cost and improving the test efficiency, so that the limiting voltage of the transformer under different environmental conditions can be tested more accurately, providing a more reliable basis for the design, production and operation of the transformer.

[0006] The above technical objectives of the present invention are achieved through the following technical solutions: a transformer production power-on test limit voltage experimental structure, including an environmental simulation cabin and a transformer limit voltage test system adapted to environmental factors, the environmental simulation cabin including a test cabin body, the top of the test cabin body is bolted with an extraction fan, and both sides of the test cabin body are bolted with humidity simulation components, the opposite sides of the two humidity simulation components are bolted with temperature simulation components, and the other side of the temperature simulation component extends to the outside of the test cabin body;

[0007] The transformer limit voltage testing system that adapts to environmental factors includes a central control module, an input end of the central control module is bidirectionally electrically connected to a wireless communication module, and an input end of the wireless communication module is bidirectionally electrically connected to a remote monitoring and operation module, an output end of the central control module is bidirectionally electrically connected to an environmental monitoring module and a data recording and analysis module, respectively, and the output end of the central control module is bidirectionally electrically connected to an environmental simulation cabin.

[0008] By adopting the above technical scheme, an environmental simulation cabin and a transformer limit voltage test system that adapts to environmental factors are set up. The humidity simulation components and temperature simulation components built into the environmental simulation cabin can simulate different environmental conditions, and the transformer can be comprehensively tested, thereby improving the adaptability and reliability of the transformer to different environments. The limit voltage that the transformer can withstand in different environments can be tested, and the transformer limit voltage test system that adapts to environmental factors can be used to intelligently adjust the test parameters and strategies, thereby reducing the test time and cost and improving the test efficiency, so that the limit voltage of the transformer under different environmental conditions can be tested more accurately, providing a more reliable basis for the design, production and operation of the transformer.

[0009] The present invention is further configured as follows: the temperature simulation component includes an air guide, the air guide is arranged on both sides of the test chamber, and is bolted to the humidity simulation component on the side close to the humidity simulation component, a fixing frame is bolted to the side of the air guide away from the humidity simulation component, and an installation frame is bolted to the inside of the fixing frame, a plurality of resistance wires are bolted to the inside of the installation frame, and an intake fan is bolted to the inside of the fixing frame away from the air guide.

[0010] By adopting the above technical scheme, by setting up a temperature simulation component, heat can be generated by controlling the resistance wire tooling, and then the outside air is sent in by the air inlet fan to generate hot air, so that the temperature inside the test chamber rises, and the hot air is evenly distributed in the test chamber through the air guide, simulating the test experiment work of the transformer in a high temperature environment. Therefore, the influence of environmental factors on the transformer's withstand voltage limit can be considered, and the transformer's withstand voltage limit under different environmental conditions can be tested more accurately.

[0011] The present invention is further configured as follows: the air guide member includes a connecting frame, the connecting frame is bolted between the humidity simulation component and the opposite side of the fixed frame, the front and rear sides inside the connecting frame are bolted with support plates, and a plurality of air guide plates are rotatably connected between the opposite sides of the two support plates, the bottom inside the connecting frame is rotatably connected with a turntable, and a fixing column is welded to the rear side of the turntable, the surface of the fixing column is rotatably sleeved with a connecting plate, and the other end of the connecting plate is rotatably connected to the bottom air guide plate.

[0012] By adopting the above technical solution, an air guide is set up, which can guide the wind direction through the flow channel formed between two adjacent air guide plates, and the turntable is driven to rotate through an external driving device, and the fixed column is driven to rotate synchronously, so that the fixed column pushes the connecting plate to move in a curve with the connection with the fixed column as the axis, thereby driving the air guide plate to move back and forth, so that the wind direction of the air guide plate changes, thereby achieving the effect of evenly distributing the hot air in the test cabin.

[0013] The present invention is further configured as follows: the humidity simulation component includes a fixing frame, the fixing frame is bolted to a side close to the connecting frame, the bottom of the fixing frame is bolted with a water tank, and the inside of the water tank is bolted with a lower bracket, a wet film is arranged inside the lower bracket, and the top of the wet film surface is clamped with an upper bracket, the top of the upper bracket is bolted with a distributor, and one side of the distributor is connected to a liquid inlet pipe, and the bottom of the liquid inlet pipe extends to the inside of the water tank.

[0014] By adopting the above technical solution and setting up a humidity simulation component, the liquid in the water tank can be transported to the inside of the distributor through the liquid inlet pipe, and the liquid can be evenly sprayed on the wet film, so that the liquid flows from top to bottom in the wet film and is fully absorbed by the polymer wet film material to form a uniform water film. When the air delivered by the inlet fan passes through the wet film, the water fully absorbs the heat of the air and vaporizes and evaporates, thereby humidifying the air. Therefore, it can achieve the effect of simulating the operation of the transformer in a humid environment.

[0015] The present invention is further configured as follows: an airflow channel is formed between two adjacent air guide plates, a rotating frame is bolted to opposite sides of the two adjacent air guide plates, and a connecting rod is rotatably connected between the two rotating frames.

[0016] By adopting the above technical solution, by setting a rotating frame and a connecting rod, when the bottom air guide plate moves, the rotating frame and the connecting rod can synchronously make other air guide plates move synchronously and in the same direction, thereby achieving the effect of changing the air guide angle.

[0017] The present invention is further configured as follows: a liquid pump structure is arranged at the front side of the interior of the water tank, and the output end of the liquid pump structure is communicated with the liquid inlet pipe.

[0018] By adopting the above technical solution and setting up a liquid pump structure, the effect of facilitating the transportation of liquid can be achieved.

[0019] The present invention is further configured as follows: the upper bracket and the lower bracket are both bolted with orifice plates, the wet film is located between the two opposite sides of the orifice plates, and a plurality of leakage holes are opened on both sides of the bottom of the lower bracket.

[0020] By adopting the above technical solution, by arranging the orifice plate and the leakage hole, it is possible to facilitate the liquid to flow from top to bottom and achieve the effect of returning to the water tank for repeated utilization.

[0021] The present invention is further configured as follows: the front side and the rear side of the fixing frame close to the connecting frame are both bolted with supporting blocks, and the supporting block is bolted to the connecting frame on one side close to the connecting frame.

[0022] By adopting the above technical solution and setting the support block, the effect of connecting the humidity simulation component with the air guide member can be achieved.

[0023] The present invention is further configured as follows: the data recording and analysis module includes a data acquisition unit, the output end of the data acquisition unit is unidirectionally electrically connected to a data storage unit, the output end of the data storage unit is unidirectionally electrically connected to a data analysis unit, and the output end of the data analysis unit is unidirectionally electrically connected to a data report generation unit.

[0024] By adopting the above technical solution, by setting up a data recording and analysis module, the data acquisition unit can record the voltage, current, environmental parameters and other data in the test process in real time, and store these data through the data storage unit, and then analyze and process them with the data analysis unit, and then establish a relationship model between the transformer limit voltage and environmental parameters. Finally, the data report generation unit generates a test report according to the analysis results, including test parameters, test results, data analysis charts and other contents, so that users can view and archive them.

[0025] The present invention is further configured as follows: the environment monitoring module includes a humidity sensor and a temperature sensor.

[0026] By adopting the above technical solution, by setting up an environmental monitoring module including a humidity sensor and a temperature sensor, the effect of real-time monitoring of the temperature or humidity data in the test cabin can be achieved.

[0027] In summary, the present invention has the following beneficial effects:

[0028] By setting up an environmental simulation cabin and a transformer limit voltage test system that adapts to environmental factors, the humidity simulation components and temperature simulation components built into the environmental simulation cabin can simulate different environmental conditions, conduct a comprehensive test on the transformer, and improve the adaptability and reliability of the transformer to different environments. The limit voltage that the transformer can withstand in different environments can be tested, and the transformer limit voltage test system that adapts to environmental factors can be used to intelligently adjust the test parameters and strategies, thereby reducing test time and cost and improving test efficiency, so that the limit voltage of the transformer under different environmental conditions can be tested more accurately, providing a more reliable basis for the design, production and operation of the transformer. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0030] Figure 2 It is a schematic diagram of the connection between the humidity simulation component and the temperature simulation component of the present invention;

[0031] Figure 3 It is a schematic diagram of the structure of the temperature simulation component of the present invention;

[0032] Figure 4 is a schematic cross-sectional view of an air guide member of the present invention;

[0033] Figure 5 It is a schematic diagram of the structure of the humidity simulation component of the present invention;

[0034] Figure 6 It is a schematic cross-sectional view of the local structure of the humidity simulation component of the present invention;

[0035] Figure 7 It is a schematic flow chart of a transformer limit voltage testing system adapted to environmental factors of the present invention;

[0036] Figure 8 It is a flow chart of the data recording and analysis module of the present invention.

[0037] Reference numerals: 1, environmental simulation chamber; 2, test chamber; 3, extraction fan; 4, humidity simulation component; 41, fixing frame; 42, water tank; 43, lower bracket; 44, wet film; 45, upper bracket; 46, distributor; 47, liquid inlet pipe; 5, temperature simulation component; 51, air guide; 511, connecting frame; 512, support plate; 513, air guide plate; 514, turntable; 515, fixing column; 516, connecting plate; 52, fixing frame; 53, installation frame; 54. Resistance wire; 55. Inlet fan; 6. Transformer limit voltage test system adapting to environmental factors; 61. Central control module; 62. Wireless communication module; 63. Remote monitoring and operation module; 64. Environmental monitoring module; 65. Data recording and analysis module; 651. Data acquisition unit; 652. Data storage unit; 653. Data analysis unit; 654. Data report generation unit; 7. Rotating frame; 8. Connecting rod; 9. Orifice plate; 10. Support block. DETAILED DESCRIPTION

[0038] The present invention is further described in detail below in conjunction with the accompanying drawings.

[0039] refer to Figure 1-8 A transformer production power-on test limit voltage experimental structure includes an environmental simulation cabin 1 and a transformer limit voltage test system 6 adapted to environmental factors, the environmental simulation cabin 1 includes a test cabin body 2, a extraction fan 3 is bolted to the top of the test cabin body 2, and humidity simulation components 4 are bolted to both sides of the inside of the test cabin body 2, and temperature simulation components 5 are bolted to the opposite sides of the two humidity simulation components 4, and the other side of the temperature simulation component 5 extends to the outside of the test cabin body 2;

[0040] The transformer limit voltage test system 6 adaptable to environmental factors includes a central control module 61, the input end of the central control module 61 is bidirectionally electrically connected to a wireless communication module 62, and the input end of the wireless communication module 62 is bidirectionally electrically connected to a remote monitoring and operation module 63, the output end of the central control module 61 is bidirectionally electrically connected to an environmental monitoring module 64 and a data recording and analysis module 65, respectively, and the output end of the central control module 61 is bidirectionally electrically connected to an environmental simulation cabin 1. By setting the environmental simulation cabin 1 and the transformer limit voltage test system 6 adaptable to environmental factors, the humidity simulation component 4 and the temperature simulation component 5 built into the environmental simulation cabin 1 can simulate different environmental conditions, and the transformer can be comprehensively tested, thereby improving the adaptability and reliability of the transformer to different environments. The limit voltage that the transformer can withstand in different environments can be tested, and the transformer limit voltage test system 6 adaptable to environmental factors can be used to intelligently adjust the test parameters and strategies, thereby reducing the test time and cost, and improving the test efficiency, so that the limit voltage of the transformer under different environmental conditions can be tested more accurately, providing a more reliable basis for the design, production and operation of the transformer.

[0041] like Figure 3 As shown, the temperature simulation component 5 includes an air guide 51, which is arranged on both sides of the test chamber 2 and is bolted to the humidity simulation component 4 on the side close to the humidity simulation component 4. A fixing frame 52 is bolted to the side of the air guide 51 away from the humidity simulation component 4, and a mounting frame 53 is bolted to the inside of the fixing frame 52. A plurality of resistance wires 54 are bolted to the inside of the mounting frame 53. An intake fan 55 is bolted to the inside of the fixing frame 52 away from the air guide 51. By setting the temperature simulation component 5, heat can be generated by controlling the resistance wire 54 tooling, and then the intake fan 55 sends outside air in to generate hot air, so that the temperature inside the test chamber 2 rises, and the hot air is evenly distributed in the test chamber 2 through the air guide 51, simulating the test experiment of the transformer in a high temperature environment. Therefore, the influence of environmental factors on the transformer's withstand voltage limit can be considered, and the transformer's voltage limit under different environmental conditions can be tested more accurately.

[0042] like Figure 4 As shown, the air guide member 51 includes a connecting frame 511, the connecting frame 511 is bolted between the humidity simulation component 4 and the opposite side of the fixed frame 52, the front and rear sides of the connecting frame 511 are bolted with support plates 512, and a plurality of air guide plates 513 are rotatably connected between the opposite sides of the two support plates 512, the bottom of the connecting frame 511 is rotatably connected with a turntable 514, and a fixing column 515 is welded to the rear side of the turntable 514, and a connecting plate 516 is rotatably sleeved on the surface of the fixing column 515, and the other end of the connecting plate 516 is connected to the The bottom wind guide plate 513 is rotatably connected. By setting the wind guide member 51, the flow channel formed between the two adjacent wind guide plates 513 can be used to guide the wind direction. The turntable 514 is driven to rotate by an external driving device, and the fixed column 515 is driven to rotate synchronously, so that the fixed column 515 pushes the connecting plate 516 to move with the connection with the fixed column 515 as the axis curve, thereby driving the wind guide plate 513 to move back and forth, so that the wind direction of the wind guide plate 513 changes, thereby achieving the effect of evenly distributing the hot air in the test cabin 2.

[0043] like Figure 5As shown, the humidity simulation component 4 includes a fixing frame 41, the fixing frame 41 is bolted to one side close to the connection frame 511, a water tank 42 is bolted to the bottom of the fixing frame 41, and a lower bracket 43 is bolted to the inside of the water tank 42, a wet film 44 is arranged inside the lower bracket 43, and an upper bracket 45 is clamped on the top of the surface of the wet film 44, a distributor 46 is bolted to the top of the upper bracket 45, and a liquid inlet pipe 47 is connected to one side of the distributor 46, and the bottom of the liquid inlet pipe 47 extends to the inside of the water tank 42, and the liquid inlet pipe 47 is connected to the bottom of the water tank 42. The humidity simulation component 4 can be arranged to transport the liquid in the water tank 42 to the inside of the distributor 46 through the liquid inlet pipe 47, and the liquid can be evenly sprayed on the wet film 44, so that the liquid flows from top to bottom in the wet film 44 and is fully absorbed by the polymer wet film 44 material to form a uniform water film. When the air delivered by the inlet fan 55 passes through the wet film 44, the water fully absorbs the heat of the air and vaporizes and evaporates, so that the air is humidified, thereby achieving the effect of simulating the operation of the transformer in a humidity environment.

[0044] like Figure 4 As shown, an air flow channel is formed between two adjacent air guide plates 513, and a rotating frame 7 is bolted on the opposite side of the two adjacent air guide plates 513, and a connecting rod 8 is rotatably connected between the two rotating frames 7. By setting the rotating frame 7 and the connecting rod 8, when the bottom air guide plate 513 moves, the rotating frame 7 and the connecting rod 8 can be used to synchronously make other air guide plates 513 move synchronously and in the same direction, thereby achieving the effect of changing the air guide angle.

[0045] like Figure 6 As shown, a liquid pump structure is provided at the front side of the water tank 42, and the output end of the liquid pump structure is connected to the liquid inlet pipe 47. By providing the liquid pump structure, the effect of facilitating the transportation of liquid can be achieved.

[0046] like Figure 6 As shown, the upper bracket 45 and the lower bracket 43 are both bolted with a perforated plate 9, the wet film 44 is located between the two opposite sides of the orifice plates 9, and a plurality of leakage holes are provided on both sides of the bottom of the lower bracket 43. By providing the orifice plate 9 and the leakage holes, it is possible to facilitate the flow of liquid from top to bottom and achieve the effect of returning to the water tank 42 for repeated use.

[0047] like Figure 2 As shown, the front and rear sides of the fixing frame 41 close to the connecting frame 511 are bolted with support blocks 10, and the support block 10 is bolted to the connecting frame 511. By setting the support block 10, the effect of connecting the humidity simulation component 4 and the air guide member 51 can be achieved.

[0048] like Figure 8As shown, the data recording and analysis module 65 includes a data acquisition unit 651, the output end of the data acquisition unit 651 is unidirectionally electrically connected to a data storage unit 652, the output end of the data storage unit 652 is unidirectionally electrically connected to a data analysis unit 653, and the output end of the data analysis unit 653 is unidirectionally electrically connected to a data report generation unit 654. By setting the data recording and analysis module 65, the data acquisition unit 651 can record the voltage, current, environmental parameters and other data in the test process in real time, and store these data through the data storage unit 652, and then analyze and process them with the data analysis unit 653, and then establish a relationship model between the transformer limit voltage and the environmental parameters, and finally the data report generation unit 654 generates a test report according to the analysis results, including test parameters, test results, data analysis charts and other contents, so that users can view and archive them.

[0049] like Figure 7 As shown, the environment monitoring module 64 includes a humidity sensor and a temperature sensor. By configuring the environment monitoring module 64 to include a humidity sensor and a temperature sensor, the effect of real-time monitoring of the temperature or humidity data in the test chamber 2 can be achieved.

[0050] A brief description of the use process: place the transformer to be tested in the test chamber 2, and use a fixed structure to fix it in the test chamber 2, then connect an external limit voltage test device, connect its voltage output end to one side of the transformer winding, and ground the other side of the winding, and connect it to the transformer limit voltage test system 6 that adapts to environmental factors through an external measuring device. Then, when the transformer limit voltage needs to be tested in a high temperature environment, heat can be generated by controlling the resistor 54 tooling, and then the outside air is sent in by the inlet fan 55 to generate hot air, so that the temperature inside the test chamber 2 rises, and the hot air is evenly distributed in the test chamber 2 through the air guide 51, simulating the test experiment of the transformer in a high temperature environment. When the transformer needs to be tested in a humid environment, the liquid in the water tank 42 can be pumped into the distributor 46 through the liquid inlet pipe 47 by the liquid pump structure, and the liquid The liquid is evenly sprayed on the wet film 44, so that the liquid flows from top to bottom on the wet film 44 and is fully absorbed by the polymer wet film 44 material to form a uniform water film. When the air sent in by the air inlet fan 55 passes through the wet film 44, the water fully absorbs the heat of the air and vaporizes and evaporates, thereby placing the interior of the test chamber 2 in a humid environment. Finally, the data acquisition unit 651 can record the voltage, current, environmental parameters and other data during the test in real time, and store these data through the data storage unit 652, and then analyze and process them with the data analysis unit 653, and then establish a relationship model between the transformer limit voltage and environmental parameters. Finally, the data report generation unit 654 generates a test report based on the analysis results, including test parameters, test results, data analysis charts and other contents, so that users can view and archive them, providing a reference for the design, production and operation of the transformer.

[0051] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed. However, as long as they are within the scope of the claims of the present invention, they are protected by the patent law.

Claims

1. A transformer production power-on test limit voltage experimental structure, comprising an environmental simulation cabin (1) and a transformer limit voltage test system (6) adapted to environmental factors, characterized in that: The environmental simulation chamber (1) comprises a test chamber (2), the top of the test chamber (2) is bolted with an exhaust fan (3), and both sides of the interior of the test chamber (2) are bolted with humidity simulation components (4), and opposite sides of the two humidity simulation components (4) are bolted with temperature simulation components (5), and the other side of the temperature simulation component (5) extends to the outside of the test chamber (2); The transformer limit voltage test system (6) adapted to environmental factors comprises a central control module (61), the input end of the central control module (61) is bidirectionally electrically connected to a wireless communication module (62), and the input end of the wireless communication module (62) is bidirectionally electrically connected to a remote monitoring and operation module (63), the output end of the central control module (61) is bidirectionally electrically connected to an environmental monitoring module (64) and a data recording and analysis module (65), respectively, and the output end of the central control module (61) is bidirectionally electrically connected to an environmental simulation cabin (1).

2. A transformer production power-on test limit voltage experimental structure according to claim 1, characterized in that: The temperature simulation component (5) comprises an air guide (51), the air guide (51) being arranged on both sides of the test chamber (2) and being bolted to the humidity simulation component (4) on the side close to the humidity simulation component (4), a fixing frame (52) being bolted to the side of the air guide (51) away from the humidity simulation component (4), a mounting frame (53) being bolted to the inside of the fixing frame (52), a plurality of resistance wires (54) being bolted to the inside of the mounting frame (53), and an air intake fan (55) being bolted to the inside of the fixing frame (52) away from the air guide (51).

3. A transformer production power-on test limit voltage experimental structure according to claim 2, characterized in that: The air guide member (51) comprises a connecting frame (511), wherein the connecting frame (511) is bolted between the humidity simulation component (4) and the opposite side of the fixed frame (52), the front side and the rear side of the connecting frame (511) are bolted with support plates (512), and a plurality of air guide plates (513) are rotatably connected between the opposite sides of the two support plates (512), the bottom of the connecting frame (511) is rotatably connected with a rotating disk (514), and a fixing column (515) is welded to the rear side of the rotating disk (514), a connecting plate (516) is rotatably sleeved on the surface of the fixing column (515), and the other end of the connecting plate (516) is rotatably connected to the bottom air guide plate (513).

4. A transformer production power-on test limit voltage experimental structure according to claim 3, characterized in that: The humidity simulation component (4) comprises a fixing frame (41), the fixing frame (41) is bolted to a side close to the connection frame (511), a water tank (42) is bolted to the bottom of the fixing frame (41), and a lower bracket (43) is bolted to the inside of the water tank (42), a wet film (44) is arranged inside the lower bracket (43), and an upper bracket (45) is clamped to the top of the surface of the wet film (44), a distributor (46) is bolted to the top of the upper bracket (45), and a liquid inlet pipe (47) is connected to one side of the distributor (46), and the bottom of the liquid inlet pipe (47) extends to the inside of the water tank (42).

5. The transformer production power-on test limit voltage experimental structure according to claim 3 is characterized by: An air flow channel is formed between two adjacent air guide plates (513), and opposite sides of the two adjacent air guide plates (513) are both bolted with a rotating frame (7), and a connecting rod (8) is rotatably connected between the two rotating frames (7).

6. A transformer production power-on test limit voltage experimental structure according to claim 4, characterized in that: A liquid pump structure is provided on the front side of the water tank (42), and the output end of the liquid pump structure is in communication with the liquid inlet pipe (47).

7. The transformer production power-on test limit voltage experimental structure according to claim 4 is characterized by: The upper bracket (45) and the lower bracket (43) are both bolted with orifice plates (9), the wet film (44) is located between the two opposite sides of the orifice plates (9), and a plurality of leakage holes are provided on both sides of the bottom of the lower bracket (43).

8. The transformer production power-on test limit voltage experimental structure according to claim 4 is characterized by: The front side and the rear side of the fixing frame (41) close to the connecting frame (511) are both bolted with supporting blocks (10), and the supporting block (10) is bolted to the connecting frame (511) on one side thereof.

9. The transformer production power-on test limit voltage test structure according to claim 1 is characterized by: The data recording and analysis module (65) comprises a data acquisition unit (651), the output end of the data acquisition unit (651) is unidirectionally electrically connected to a data storage unit (652), the output end of the data storage unit (652) is unidirectionally electrically connected to a data analysis unit (653), and the output end of the data analysis unit (653) is unidirectionally electrically connected to a data report generation unit (654).

10. The transformer production power-on test limit voltage test structure according to claim 1, characterized in that: The environment monitoring module (64) includes a humidity sensor and a temperature sensor.

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