A converter transformer maintenance training platform

Abstract

This utility model relates to a converter transformer maintenance training platform. The platform includes a valve-side A-lift seat, a valve-side B-lift seat, a grid-side A-lift seat, a grid-side B-lift seat, and an oil tank drain pipe on the oil tank. An oil conservator is connected to the oil tank via a connecting pipe. The oil tank has a viewing window, each lift seat has a viewing window, and the oil conservator has a viewing window. The oil tank has an injection port and a detection element port. A venting pipe assembly is located on the upper side of the oil tank, comprising a main venting pipe and multiple branch pipes. One end of the main venting pipe is connected to the oil tank, and the other end is connected to the connecting pipe. The main venting pipe is connected to each lift seat via its respective branch pipe. A first venting element is installed on the main venting pipe, and a gas relay and a second venting element are installed on the connecting pipe. This utility model can simulate not only normal transformer operation but also various transformer fault conditions, thus meeting the needs of maintenance training.

Description

Technical Field

[0001] This utility model relates to the field of transformer maintenance, specifically a converter transformer maintenance training platform. Background Technology

[0002] In the existing technology, the maintenance training for converter transformer operation and maintenance personnel is mainly based on actual transformer products. However, the maintenance cycle of transformers is relatively long. Therefore, in most cases, operation and maintenance personnel can only learn relevant maintenance knowledge based on the actual operating transformers. However, the effect of this maintenance training is limited. In particular, some important fault situations in the maintenance training can only be understood by maintenance personnel when the transformer is actually being maintained.

[0003] In addition, existing technologies mainly utilize simulation techniques to simulate transformer faults. For example, patent CN119442071B discloses a transformer fault simulation detection system. This system first obtains transformer fault data from the power system's monitoring system, fault reports, and maintenance records. Simultaneously, it collects corresponding parameters from the transformer's normal operation for comparison. Then, it processes missing data, performs data standardization, generates fault simulation data, and establishes a physical model of the transformer. Finally, it identifies faults in the simulated data using transformer fault simulation software. However, the aforementioned fault simulation detection system is biased towards an electrical perspective and is more suitable for the transformer design phase. For actual transformer maintenance and repair, operation and maintenance personnel need a more intuitive understanding of various fault phenomena. Utility Model Content

[0004] The purpose of this utility model is to provide a converter transformer maintenance training platform, which can not only realistically simulate the oil draining, oil filling, and vacuuming of a transformer during normal operation, but also simulate various fault conditions during transformer operation, thereby meeting the needs of maintenance training.

[0005] The objective of this utility model is achieved through the following technical solution: A converter transformer maintenance training platform includes an oil tank and an oil conservator. The oil tank is equipped with valve-side A-lift seat, valve-side B-lift seat, grid-side A-lift seat, and grid-side B-lift seat. The oil conservator is connected to the oil tank via a connecting pipeline. The oil tank has a viewing window, and each of the grid-side A-lift seat, grid-side B-lift seat, valve-side A-lift seat, and valve-side B-lift seat has a viewing window. The oil conservator has a viewing window. The oil tank has an injection port and a detection element port. A venting pipeline group is located on the upper side of the oil tank. The venting pipeline group includes a main venting pipeline and multiple branch pipes. One end of the main venting pipeline is connected to the oil tank, and the other end is connected to the connecting pipeline. The main venting pipeline is connected to the grid-side A-lift seat, grid-side B-lift seat, valve-side A-lift seat, and valve-side B-lift seat via the branch pipes. The main venting pipeline is equipped with a first venting element, and the connecting pipeline is equipped with a gas relay and a second venting element.

[0006] The venting pipeline assembly has a first mesh-side branch pipe, a second mesh-side branch pipe, a first valve-side branch pipe, and a second valve-side branch pipe on its main venting pipeline. The first mesh-side branch pipe is connected to mesh-side A riser seat, the second mesh-side branch pipe is connected to mesh-side B riser seat, the first valve-side branch pipe is connected to valve-side a riser seat, and the second valve-side branch pipe is connected to valve-side b riser seat.

[0007] The connecting pipeline is equipped with a connecting pipeline control valve, and the two connecting pipeline control valves are located on both sides of the gas relay.

[0008] The oil tank is provided with an oil drain pipe on one side of the lower end, and the oil drain pipe is provided with an oil drain valve that simulates oil draining.

[0009] The oil tank is equipped with a normal oil level gauge and a fault simulation oil level gauge on one side. The fault simulation oil level gauge includes a limiting element and an oil level gauge head, a connecting rod and a float connected in sequence. The oil level gauge head is installed on the oil tank wall, and the connecting rod and the float are both located inside the oil tank. The limiting element is installed on the connecting rod, and the position of the connecting rod is limited by the limiting element.

[0010] The oil tank is equipped with a moisture-absorbing pipe connected to a moisture absorber, and the moisture-absorbing pipe is equipped with a moisture absorber blockage simulation control valve. The upper side of the oil tank is equipped with a pressure relief valve, and the pressure relief valve is connected to the fuel injection simulation pipe.

[0011] The oil tank is provided with a cooler simulation pipeline on the side away from the oil storage tank. The upper end of the cooler simulation pipeline is connected to the upper surface of the oil tank, and the lower end is connected to the lower side of the oil tank. A circulation pump is provided on the cooler simulation pipeline. The upper end of the cooler simulation pipeline is provided with a cooling pipe venting element, and the lower end is provided with a cooling pipe oil draining element. A cooling pipe control valve is provided on the cooler simulation pipeline.

[0012] The ends of the mesh-side A riser seat, mesh-side B riser seat, valve-side a riser seat, and valve-side b riser seat are all provided with riser seat viewing windows, and oil level scale plates are provided on the inner walls of the mesh-side A riser seat, mesh-side B riser seat, valve-side a riser seat, and valve-side b riser seat.

[0013] The raised seat viewing window includes a viewing window mounting base, a viewing window panel, and a pressure plate. The viewing window panel is disposed in the viewing window mounting base, and the edge of the viewing window panel is pressed together by the pressure plate. Then, the pressure plate and the viewing window panel are fixed to the viewing window mounting base by fasteners.

[0014] The tank wall is equipped with a sampling port and an openable cover.

[0015] The advantages and positive effects of this utility model are as follows: 1. In addition to realistically simulating the oil draining, oil filling, and vacuuming of a transformer during normal operation, this utility model can also simulate various fault conditions during transformer operation, including simulating transformer gas generation faults, simulating oil level gauge linkage jamming faults, simulating dehumidifier blockage causing the oil tank pressure relief valve to operate, simulating the circulation of transformer oil during cooling, etc. At the same time, trainees can intuitively observe the above fault conditions through the viewing windows of various parts of the transformer, thereby meeting the needs of maintenance training.

[0016] 2. After simulating transformer gas generation faults, this utility model ensures thorough venting of all parts of the transformer by connecting the main venting pipeline in the venting pipeline group to various riser seats of the transformer through different branch pipes, thus not affecting the simulation of other situations.

[0017] The oil tank of this utility model is equipped with multiple detection element interfaces. Pressure gauges or other detection elements can be installed at the corresponding detection element interfaces as needed to monitor the pressure or other parameters in the oil tank in real time, thereby ensuring the safety of fault simulation.

[0018] 4. This utility model has an oil level scale plate on the inner wall of each lifting seat. Trainees can intuitively and accurately understand the changes in oil volume under various conditions, such as the changes in oil volume when the transformer is draining oil or when the pressure relief valve is activated to simulate an oil injection failure.

[0019] 5. The relevant components of this utility model, such as gas relays and pressure relief valves, can be disassembled and observed according to actual needs, so that trainees can have a more intuitive understanding of the relevant components. At the same time, the oil tank is equipped with multiple sampling ports to facilitate transformer oil sampling. In this way, in addition to observing through various viewing windows, trainees can also understand the condition of transformer oil under different conditions through sampling and testing. Attached Figure Description

[0020] Figure 1 This is the front view of the present invention. Figure 2 for Figure 1 Left view of the present invention. Figure 3 for Figure 1 Top view of the utility model. Figure 4 for Figure 3 A schematic diagram of the structure of the viewing window of the raised platform. Figure 5 for Figure 1 A schematic diagram of the structure of the oil level gauge used for simulating faults.

[0021] Among them, 1 is the oil tank, 101 is the oil tank viewing window, 102 is the gas injection port, 103 is the vacuum port, 104 is the sampling port, 105 is the pressure relief valve, 106 is the cover plate, 107 is the oil level thermometer, 2 is the oil tank drain line, 201 is the upper valve, 202 is the lower valve, 203 is the drain valve, 3 is the valve side b riser seat, 4 is the valve side a riser seat, 5 is the oil reservoir, and 501 is the normal oil reservoir. 502 is a fault simulation oil level gauge, 5021 is the oil level gauge head, 5022 is a connecting rod, 5023 is a float, 5024 is a limit element, 5025 is the normal position of the connecting rod, 503 is a connecting pipeline, 5031 is a gas relay, 5032 is the second venting element, 5033 is the connecting pipeline control valve, 504 is the oil tank filling / draining pipeline, 505 is the oil tank viewing window, 6 is the venting pipeline group, 601 is the main venting pipeline, 6011 is the first venting element, 602 is the second network side branch pipe, 603 is the first network side branch pipe, 604 is the first valve side branch pipe, 605 is the second valve side branch pipe, 7 is the network side A riser seat, 8 is the network side B riser seat, 9 is the cooler simulation pipeline, 901 is the cooler pipe venting element, 902 is the circulation pump, 903 is the cooler pipe control valve, 904 is the cooler pipe venting valve. Oil components: 10 is a secondary cable tray, 11 is a moisture absorption pipeline, 1101 is a moisture absorber, 1102 is a moisture absorber blockage simulation control valve, 1103 is a moisture absorption pipeline control valve, 12 is a terminal box, 13 is a riser viewing window, 1301 is a pressure plate, 1302 is a viewing window panel, 1303 is a sealing gasket, 1304 is a fastener, 1305 is a viewing window mounting base, and 1306 is an oil level scale plate. Detailed Implementation

[0022] The present invention will now be described in further detail with reference to the accompanying drawings.

[0023] like Figure 1As shown, this utility model includes an oil tank 1 and an oil conservator 5. The oil tank 1 has a terminal box 12 on one side, and on the other side, from top to bottom, are a valve-side a riser seat 4, a valve-side b riser seat 3, and an oil tank drain pipe 2. The upper side of the oil tank 1 has a grid-side A riser seat 7, a grid-side B riser seat 8, and an oil conservator 5. The oil conservator 5 is connected to the oil tank 1 via a connecting pipe 503. The above structure, the internal structure of the oil tank 1, and the electrical connections of each part are all the same as those of converter transformers in the prior art. Figure 1 and Figure 3 As shown, a secondary cable tray 10 is provided on the outside of the oil tank 1.

[0024] like Figures 1-3 As shown, the oil tank 1 is provided with an oil tank viewing window 101, and the grid-side A lifting seat 7, grid-side B lifting seat 8, valve-side a lifting seat 4, and valve-side b lifting seat 3 are all provided with lifting seat viewing windows 13. The oil conservator 5 is provided with an oil conservator viewing window 505. When this utility model is in operation, training personnel can observe the internal conditions of various parts of the transformer through the above-mentioned viewing windows.

[0025] like Figures 1-3 As shown, the oil tank 1 is equipped with an air injection port 102 and a detection element port. An air venting pipeline group 6 is located on the upper side of the oil tank 1. The air venting pipeline group 6 includes a main air venting pipeline 601 and multiple branch pipes. One end of the main air venting pipeline 601 is connected to the oil tank 1, and the other end is connected to the connecting pipeline 503. Simultaneously, the main air venting pipeline 601 is connected to the network-side A riser 7, network-side B riser 8, valve-side a riser 4, and valve-side b riser 3 respectively through the branch pipes. A first air venting element 6011 is provided on the main air venting pipeline 601, and a gas relay 5031 and a second air venting element 5032 are provided on the connecting pipeline 503. In this embodiment, the first air venting element 6011 and the second air venting element 5032 can be, as needed, components such as air vent plugs or air venting valves, which are commercially available products. Additionally, the gas relay 5031 is also a commercially available product.

[0026] like Figures 1-3As shown, during operation, gas can be injected into the gas injection ports 102 at different locations in the oil tank 1 to simulate various gas-generating faults in the transformer. Additionally, pressure gauges or other detection elements can be installed at their corresponding detection element interfaces to monitor the pressure or other parameters within the oil tank 1 in real time, ensuring the safety of the fault simulation. Trainees can observe the internal condition of the transformer in real time through the aforementioned viewing windows. When venting is required, the first venting element 6011 and the second venting element 5032 open to achieve the venting function. Furthermore, the main venting pipeline 601 is connected to each riser via different branch pipes, ensuring thorough venting of all parts of the transformer without affecting other simulation scenarios. Valves for controlling the on / off state can be installed within the gas injection ports 102 and detection element interfaces as needed; this is a technique known in the art.

[0027] Other examples Figure 1 and Figure 3 As shown, the oil tank drain pipe 2 on the lower side of the oil tank 1 is equipped with an upper valve 201, a lower valve 202, and a drain valve 203. Opening the drain valve 203 can simulate the drain function of the pipe. The upper valve 201 is used as a vacuum and exhaust port valve, and the lower valve 202 is used as an oil drain and air injection port valve. The specific structure of the oil tank drain pipe 2 is the same as that of an actual transformer.

[0028] like Figures 1-3 As shown in this embodiment, the venting main pipeline 601 of the venting pipeline group 6 is provided with a first mesh-side branch pipe 603, a second mesh-side branch pipe 602, a first valve-side branch pipe 604, and a second valve-side branch pipe 605. The first mesh-side branch pipe 603 is connected to the mesh-side A riser 7, the second mesh-side branch pipe 602 is connected to the mesh-side B riser 7, the first valve-side branch pipe 604 is connected to the valve-side a riser 4, and the second valve-side branch pipe 605 is connected to the valve-side b riser 3. Control valves for controlling the on / off state of the pipeline can be installed on each of the above branch pipes as needed.

[0029] like Figure 1 As shown, in this embodiment, a connecting pipeline control valve 5033 is provided on the connecting pipeline 503, and two connecting pipeline control valves 5033 are respectively located on both sides of the gas relay 5031 to realize pipeline on / off control. The connecting pipeline control valve 5033 is a commercially available product.

[0030] like Figures 1-2 As shown, the oil tank 5 is equipped with two oil level gauges on one side: a normal oil level gauge 501 and a fault simulation oil level gauge 502. The structure of the fault simulation oil level gauge 502 is as follows: Figure 5As shown, it includes a limiting element 5024 and an oil level gauge head 5021, a connecting rod 5022, and a float 5023 connected in sequence. The oil level gauge head 5021 is installed on the wall of the oil tank 5. The connecting rod 5022 and the float 5023 are both located inside the oil tank 5. The limiting element 5024 is installed on the connecting rod 5022, and the position of the connecting rod 5022 is limited by the limiting element 5024. When the oil level gauge is working normally, as the oil level rises, the float 5023 and the connecting rod 5022 should be in the specified position. Figure 5 The connecting rod is shown in its normal position 5025. However, in the fault simulation oil level gauge 502, the connecting rod 5022 cannot move to its normal position 5025 with the oil level due to the limiting element 5024, thus simulating faults such as connecting rod jamming. The oil level gauge is a well-known technology in the field; for example, see the oil level gauge structure in patent CN217083892U. In this embodiment, the limiting element 5024 can use a limiting ball lock to lock the connecting rod 5022. The limiting ball lock is a commercially available product. Alternatively, a structure such as a card plate with a slot at the top can be used as needed. The connecting rod 5022 is placed in the slot, and the card plate increases gravity to simulate connecting rod jamming.

[0031] like Figure 2 As shown, the oil tank 5 is equipped with a moisture-absorbing pipe 11 connected to a moisture absorber 1101. In addition to the moisture-absorbing pipe control valve 1103 for normal pipe opening and closing, the moisture-absorbing pipe 11 also has a moisture absorber blockage simulation control valve 1102. A pressure relief valve 105 is located on the upper side of the oil tank 1. When this invention is in operation, when the moisture absorber blockage simulation control valve 1102 is closed, it can simulate a blockage fault in the moisture absorber 1101, thereby simulating the situation where the oil tank 5's breathing is obstructed, causing the pressure relief valve 105 on the upper side of the oil tank 1 to activate. The moisture absorber 1101, pressure relief valve 105, and all control valves are commercially available products. The pressure relief valve 105 is connected to an oil spraying simulation pipe. When the pressure relief valve 105 activates and sprays oil, the sprayed transformer oil can be discharged through the oil spraying simulation pipe to ensure a clean training environment.

[0032] like Figure 2 As shown, an oil tank filling and draining pipeline 504 is provided on the lower side of the oil tank 5 to simulate the oil filling and draining situation of the oil tank 5. A control valve for controlling the opening and closing of the pipeline is provided on the oil tank filling and draining pipeline 504.

[0033] like Figures 1-2As shown, a cooler simulation pipeline 9 is provided on the side of the oil tank 1 away from the oil storage tank 5. The upper end of the cooler simulation pipeline 9 is connected to the upper surface of the oil tank 1, and the lower end is connected to one side of the lower end of the oil tank 1. A circulation pump 902 is provided on the cooler simulation pipeline 9 to force the transformer oil in the oil tank 1 to flow, thereby simulating the circulation flow of transformer oil during cooling. The cooler simulation pipeline 9 can be connected to the actual cooler according to training needs, or it can be a separate circulation pipeline without connection to the cooler, depending on training needs. Figure 3 As shown, an oil level thermometer 107 is installed on the upper side of the oil tank 1 to monitor the oil temperature of the transformer oil in the tank in real time. The oil level thermometer 107 is a commercially available product. Additionally, as shown... Figure 2 As shown, multiple sampling ports 104 are provided at appropriate positions on the wall of the oil tank 1 to facilitate the sampling, observation or testing of transformer oil. In this way, in addition to observing through various viewing windows, trainees can also test the condition of transformer oil under different conditions by sampling. The sampling port 104 is equipped with a valve to control the on / off state, which is a well-known technology in the field.

[0034] like Figure 1 As shown, in this embodiment, the upper end of the cooler simulation pipeline 9 is provided with a cooling pipe venting element 901 to realize the venting function of the cooler simulation pipeline 9, and the lower end of the cooler simulation pipeline 9 is provided with a cooling pipe oil draining element 904 to realize the oil draining function of the cooler simulation pipeline 9. The cooling pipe venting element 901 can be a vent plug or a venting valve, and the cooling pipe oil draining element 904 can be an oil draining valve. In addition, multiple cooling pipe control valves 903 for controlling the opening and closing of the pipeline are provided at appropriate positions on the cooler simulation pipeline 9.

[0035] like Figure 4 As shown in this embodiment, the ends of the mesh-side A riser seat 7, the mesh-side B riser seat 8, the valve-side a riser seat 4, and the valve-side b riser seat 3 are all provided with riser seat viewing windows 13. Oil level scale plates 1306 are provided on the inner walls of the mesh-side A riser seat 7, the mesh-side B riser seat 8, the valve-side a riser seat 4, and the valve-side b riser seat 3. During training, trainees can observe through the riser seat viewing windows 13 and can intuitively understand the oil level changes within the riser seat based on the oil level scale plates 1306. Especially when performing oil drainage or simulating injection failures by activating the pressure relief valve 105, trainees can accurately understand the oil drainage or injection volume based on the oil level scale plates 1306, making the training more intuitive.

[0036] like Figure 4As shown, in this embodiment, the viewing window 13 of the riser includes a viewing window mounting base 1305, a viewing window panel 1302, and a pressure plate 1301. The viewing window mounting base 1305 is disposed on the corresponding riser, and the viewing window panel 1302 is disposed in the viewing window mounting base 1305. The edge of the viewing window panel 1302 is pressed together by the pressure plate 1301. Then, the pressure plate 1301 and the viewing window panel 1302 are fixed to the viewing window mounting base 1305 by fasteners 1304. Sealing gaskets 1303 are provided between the viewing window panel 1302 and the pressure plate 1301, and between the viewing window panel 1302 and the viewing window mounting base 1305 to ensure sealing. In this embodiment, the fasteners 1304 are bolts, and the viewing window panel 1302 is made of high-strength glass.

[0037] like Figure 3 As shown, in this embodiment, the oil tank 1 is provided with an oil filling port and a vacuum port 103, which are respectively connected to the oil filling pipeline and the vacuum pumping pipeline to realize oil filling and vacuum pumping operations. This is a well-known technology in the art. Additionally, as... Figure 3 As shown in this embodiment, the upper side of the oil tank 1 is also provided with an openable cover 106 to further meet the training needs such as internal physical observation.

[0038] The working principle of this utility model is as follows: In addition to realistically simulating transformer oil drainage, oil injection, and vacuuming, this utility model can also simulate various transformer fault conditions according to training needs, thereby meeting the training requirements of operation and maintenance personnel. Specifically, it includes: I. For example Figures 1-3 As shown, after the simulated transformer is evacuated and filled with oil, gas can be injected into the gas injection ports 102 at various locations on the oil tank 1 to simulate various gas-generating faults in the transformer. Simultaneously, pressure gauges or other detection elements can be installed at the corresponding detection element interfaces to monitor the pressure or other parameters inside the oil tank 1 in real time, ensuring the safety of the fault simulation. At this time, trainees can observe the internal condition of the transformer in real time through various viewing windows. When venting is required, the first venting element 6011 and the second venting element 5032 open to achieve the venting function. Furthermore, the main venting pipeline 601 is connected to various riser seats and other parts through different branch pipes, ensuring thorough venting of all parts of the transformer without affecting other simulation scenarios. The pressure gauges also assist in monitoring the pressure to confirm whether venting is complete.

[0039] II. Figure 1 and Figure 5 As shown, the oil tank 5 is equipped with two oil level gauges on one side: a normal oil level gauge 501 and a fault simulation oil level gauge 502. Figure 5As shown, the connecting rod 5022 of the fault simulation oil level gauge 502 is positioned by the limiting element 5024, which can simulate faults such as oil level gauge connecting rod jamming.

[0040] III. Figure 2 As shown, the oil tank 5 is provided with a moisture absorption pipe 11 connected to a moisture absorber 1101, and the moisture absorption pipe 11 is provided with a moisture absorber blockage simulation control valve 1102. When the moisture absorber blockage simulation control valve 1102 is closed, it can simulate the blockage fault of the moisture absorber 1101, and thus simulate the situation where the oil tank 5 is not breathing properly, causing the pressure relief valve 105 on the upper side of the oil tank 1 to be activated.

[0041] Other examples Figure 4 As shown, each riser seat has an oil level scale 1306 on its inner wall. Trainees can accurately understand the oil injection volume caused by the action of the pressure relief valve 105 by referring to the oil level scale 1306, making the training more intuitive. Figure 2 As shown, the pressure relief valve 105 is connected to a simulated oil spraying pipeline, through which the sprayed transformer oil can be discharged to ensure a clean training environment. Figure 3 As shown, the drain valve 203 on the oil tank drain line 2 is used to simulate the oil draining situation of the line. During the draining process, the trainees can also understand the change in the amount of oil drained by referring to the oil level scale 1306.

[0042] IV. Figures 1-2 As shown, a cooler simulation pipeline 9 is provided on the side of the oil tank 1 away from the oil storage tank 5, and a circulation pump 902 is provided on the cooler simulation pipeline 9 to force the transformer oil in the oil tank 1 to flow, thereby simulating the circulation flow of transformer oil during cooling. Figure 3 As shown, an oil surface thermometer 107 is installed on the upper side of the oil tank 1 to monitor the oil temperature of the transformer oil in the tank in real time, which allows trainees to intuitively understand the changes in the oil temperature of the transformer oil.

[0043] This utility model, besides realistically simulating transformer oil drainage, oil injection, vacuuming, and various aforementioned faults, also features threaded connections or installations for related components such as the gas relay 5031 and pressure relief valve 105. These components can be disassembled and observed as needed, allowing trainees to gain a more intuitive understanding of the components. Figure 2 As shown, the oil tank 1 is equipped with multiple sampling ports 104 to facilitate transformer oil sampling. In this way, in addition to observing through various viewing windows, trainees can also understand the condition of transformer oil under different conditions through sampling and testing.

Claims

1. A converter transformer maintenance training platform, characterized in that: The system includes an oil tank (1) and an oil storage tank (5). The oil tank (1) is equipped with a valve-side a riser seat (4), a valve-side b riser seat (3), a mesh-side A riser seat (7), and a mesh-side B riser seat (8). The oil storage tank (5) is connected to the oil tank (1) via a connecting pipe (503). The oil tank (1) is equipped with an oil tank viewing window (101). The mesh-side A riser seat (7), the mesh-side B riser seat (8), the valve-side a riser seat (4), and the valve-side b riser seat (3) are all equipped with riser seat viewing windows (13). The oil storage tank (5) is equipped with an oil storage tank viewing window (505). The oil tank (1) is equipped with an air injection port (102) and a detection element port. The upper side of the box (1) is provided with a venting pipeline group (6), and the venting pipeline group (6) includes a venting main pipeline (601) and multiple branch pipelines. One end of the venting main pipeline (601) is connected to the oil tank (1), and the other end is connected to the connecting pipeline (503). At the same time, the venting main pipeline (601) is connected to the network side A riser seat (7), the network side B riser seat (8), the valve side a riser seat (4), and the valve side b riser seat (3) respectively through each branch pipeline. The venting main pipeline (601) is provided with a first venting element (6011), and the connecting pipeline (503) is provided with a gas relay (5031) and a second venting element (5032).

2. The converter transformer maintenance training platform according to claim 1, characterized in that: The venting pipeline group (6) has a first mesh side branch pipe (603), a second mesh side branch pipe (602), a first valve side branch pipe (604), and a second valve side branch pipe (605) on its venting main pipeline (601). The first mesh side branch pipe (603) is connected to the mesh side A riser seat (7), the second mesh side branch pipe (602) is connected to the mesh side B riser seat, the first valve side branch pipe (604) is connected to the valve side a riser seat (4), and the second valve side branch pipe (605) is connected to the valve side b riser seat (3).

3. The converter transformer maintenance training platform according to claim 1, characterized in that: The connecting pipeline (503) is equipped with a connecting pipeline control valve (5033), and the two connecting pipeline control valves (5033) are respectively located on both sides of the gas relay (5031).

4. The converter transformer maintenance training platform according to claim 1, characterized in that: The oil tank (1) is provided with an oil tank drain pipe (2) on one side of the lower end, and an oil drain valve (203) for simulating oil draining is provided on the oil tank drain pipe (2).

5. The converter transformer maintenance training platform according to claim 1, characterized in that: The oil tank (5) is provided with a normal oil level gauge (501) and a fault simulation oil level gauge (502) on one side. The fault simulation oil level gauge (502) includes a limiting element (5024) and an oil level gauge head (5021), a connecting rod (5022) and a float (5023) connected in sequence. The oil level gauge head (5021) is installed on the tank wall of the oil tank (5). The connecting rod (5022) and the float (5023) are both located inside the oil tank (5). The limiting element (5024) is installed on the connecting rod (5022), and the connecting rod (5022) is positioned by the limiting element (5024).

6. The converter transformer maintenance training platform according to claim 1, characterized in that: The oil tank (5) is provided with a moisture absorption pipe (11) connected to a moisture absorber (1101), and the moisture absorption pipe (11) is provided with a moisture absorber blockage simulation control valve (1102). The oil tank (1) is provided with a pressure relief valve (105) on the upper side, and the pressure relief valve (105) is connected to the fuel injection simulation pipe.

7. The converter transformer maintenance training platform according to claim 1, characterized in that: The oil tank (1) is provided with a cooler simulation pipeline (9) on the side away from the oil storage tank (5). The upper end of the cooler simulation pipeline (9) is connected to the upper surface of the oil tank (1), and the lower end is connected to the lower side of the oil tank (1). A circulation pump (902) is provided on the cooler simulation pipeline (9). A cooling pipe venting element (901) is provided at the upper end of the cooler simulation pipeline (9), and a cooling pipe oil draining element (904) is provided at the lower end. A cooling pipe control valve (903) is provided on the cooler simulation pipeline (9).

8. The converter transformer maintenance training platform according to claim 1, characterized in that: The ends of the mesh-side A riser seat (7), the mesh-side B riser seat (8), the valve-side a riser seat (4), and the valve-side b riser seat (3) are all provided with riser seat viewing windows (13). The inner walls of the mesh-side A riser seat (7), the mesh-side B riser seat (8), the valve-side a riser seat (4), and the valve-side b riser seat (3) are all provided with oil level scale plates (1306).

9. The converter transformer maintenance training platform according to claim 8, characterized in that: The raised seat viewing window (13) includes a viewing window mounting base (1305), a viewing window panel (1302), and a pressure plate (1301). The viewing window panel (1302) is disposed in the viewing window mounting base (1305), and the edge of the viewing window panel (1302) is pressed by the pressure plate (1301). Then, the pressure plate (1301) and the viewing window panel (1302) are fixed to the viewing window mounting base (1305) by fasteners (1304).

10. The converter transformer maintenance training platform according to claim 1, characterized in that: The oil tank (1) has a sampling port (104) and an openable cover plate (106) on its wall.

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