A high-power transformer with isolation guard

Abstract

This invention discloses a high-power transformer with an isolation and protection device, relating to the field of transformers. It includes a fixed base plate, with a fixed outer frame horizontally welded to its outer side. The top surface of the fixed outer frame has uniformly spaced connecting through holes. A side sleeve groove is horizontally formed on the side of the fixed base plate, and a pressing plate is horizontally engaged on the inner side of the side sleeve groove. An outer isolation cover is fastened to the top surface of the fixed base plate. An observation window is vertically formed on one side of the outer isolation cover, and a sealing plate is vertically engaged on the inner side of the observation window. A fastening block is horizontally welded to one side of the sealing plate. Side storage grooves are symmetrically formed on both sides of the outer isolation cover, and a flip handle is provided on the inner side of each side storage groove. This invention features a simple design and easy operation. The snap-fit ​​fixing method simplifies installation, while the multiple isolation and heat dissipation structures make the transformer's operation more stable.

Description

Technical Field

[0001] This invention relates to the field of transformer technology, specifically a high-power transformer with isolation and protection devices. Background Technology

[0002] A transformer is a device that uses the principle of electromagnetic induction to change alternating current voltage. Its main components are a primary coil, a secondary coil, and an iron core (magnetic core). Its main functions include voltage transformation, current transformation, impedance transformation, isolation, and voltage stabilization (magnetic saturation transformer). Transformers are fundamental equipment for power transmission and distribution, widely used in industry, agriculture, transportation, and urban communities. There are approximately 17 million transformers in operation in my country, with a total capacity of about 11 billion kilovolt-amperes. Transformer losses account for about 40% of power transmission and distribution losses, indicating significant potential for energy conservation. To accelerate the promotion and application of high-efficiency and energy-saving transformers, improve energy resource utilization efficiency, and promote green, low-carbon, and high-quality development, [further details are needed].

[0003] Currently, transformers are installed using a single-layer casing that is bolted to a designated location. Since transformers can spontaneously combust during operation, traditional casings cannot effectively prevent fires, thus affecting the safety of people outside and causing irreparable damage. In addition, the installation process requires the use of multiple tools, making the installation steps complicated and hindering work efficiency. Summary of the Invention

[0004] The purpose of this invention is to provide a high-power transformer with an isolation and protection device to solve the problems mentioned in the background art. Current transformers are installed using a single-layer shell that is bolted to a designated position. Since transformers may spontaneously combust during operation, traditional outer casings cannot effectively provide flame retardancy, thus affecting the safety of people outside and causing irreparable damage. At the same time, the installation process requires the use of multiple tools, making the installation steps complicated and hindering work efficiency.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A high-power transformer with an isolation and protection device includes a fixed base plate. A fixed outer frame is horizontally welded to the outer side of the fixed base plate. A connecting through hole is evenly distributed on the top surface of the fixed outer frame. A side sleeve groove is horizontally formed on the side of the fixed base plate. A pressing plate is horizontally engaged on the inner side of the side sleeve groove. An outer isolation cover is fastened to the top surface of the fixed base plate. An observation window is vertically formed on one side of the outer isolation cover. A sealing plate is vertically engaged on the inner side of the observation window. One side of the sealing plate is horizontally... The outer isolation cover is welded with fastening blocks. Symmetrical side storage slots are provided on both sides of the outer isolation cover. A flip handle is provided on the inner side of each side storage slot. An isolation rubber ring is fixedly bonded to the top surface of the fixed base plate. A fastening bottom groove is horizontally provided on the top surface of the fixed base plate. Blocking blocks are symmetrically welded to both sides of the pressing plate. A support rod is vertically welded upwards to the top surface of the fixed base plate. A top fixing plate is horizontally welded to the top of the support rod. Connecting through holes are evenly distributed on the top surface of the top fixing plate. The top surface of the top fixing plate is connected to... The transformer has transmission through holes evenly distributed on the top surface of the fixed base plate, with transmission lines inserted into the inner sides of the transmission through holes. An inner isolation cover is welded to the inner side of the outer isolation cover. Limiting strips are symmetrically welded to both sides of the sealing plate. A bottom storage groove is vertically formed on the inner bottom surface of the observation window, with symmetrically formed limiting grooves on the inner side of the bottom storage groove. A bottom fastening frame is horizontally welded to the bottom surface of the outer isolation cover, with a fastening wedge snapped onto the outer side of the bottom fastening frame. Inner limiting strips are symmetrically formed on the inner side of the inner isolation cover. The inner side of the inner isolation cover is horizontally provided with a movable top plate. The top surface of the movable top plate is uniformly provided with top-connecting springs. The two sides of the movable top plate are symmetrically welded with limiting blocks. The two ends of the flip handle are horizontally inserted with flip shafts. The top surface of the movable top plate is uniformly provided with ventilation channels. The bottom surface of the movable top plate is uniformly welded with heat sinks. The inner side of the movable top plate is horizontally welded with an inner fixing plate. The inner side of the inner fixing plate is vertically clamped with a main motor. The output end of the main motor is fixedly sleeved with a fan blade.

[0007] In a preferred embodiment of the present invention: the fixed outer frame is horizontally fixed in a U-shape on the outer side of the fixed base plate near the bottom surface, and the bottom surface of the fixed outer frame is at the same horizontal level as the bottom surface of the fixed base plate. The side sleeve grooves are horizontally opened on the four sides of the fixed base plate, and the side sleeve grooves are horizontally set at the center of the side of the fixed base plate. The inside of the side sleeve groove is connected to the inside of the snap-fit ​​bottom groove.

[0008] In a preferred embodiment of the present invention: one side of the pressing plate is aligned with the inclined side of the snap-fit ​​block, the bottom surface of the outer isolation cover is aligned with the top surface of the isolation rubber ring near the edge, and there are multiple observation windows, which are arranged in a parallel line with each other, and the interior of the multiple observation windows is connected to the interior of the outer isolation cover.

[0009] In a preferred embodiment of the present invention: the side storage slots are symmetrically opened on both sides of the outer isolation cover vertically towards the center line; the isolation rubber ring is horizontally fixed on the top surface of the fixed base plate near the edge; the isolation rubber ring is made of soft rubber material; the snap-fit ​​bottom groove is in the shape of a "U" and is horizontally opened on the top surface of the fixed base plate near the edge; the isolation rubber ring is fixed on the top opening side of the snap-fit ​​bottom groove; there are multiple support poles, and the multiple support poles are arranged parallel to each other.

[0010] In a preferred embodiment of the present invention: the top fixing plate and the bottom fixing plate are stacked and arranged in parallel, and the top of the support rod is vertically welded upward to the bottom surface of the top fixing plate near the edge. The transformer is fixedly connected to the inside of the connecting through hole by bolt threads. One end of the transmission line extends through the transmission through hole to the bottom surface of the top fixing plate, and the extended end is electrically connected to the transformer.

[0011] In a preferred embodiment of the present invention: the limiting strip is vertically fixed on both sides of the sealing plate and is respectively snapped into the inner side of the limiting groove. The bottom storage groove is opened at the center of the inner bottom surface of the observation window, and the bottom end of the sealing plate is vertically inserted into the inner side of the top opening of the bottom storage groove. The bottom fastening frame is set in a U-shape and is horizontally fixed on the bottom surface of the outer isolation cover near the edge. The bottom fastening frame is vertically inserted into the inner side of the fastening bottom groove.

[0012] As a preferred embodiment of the present invention: the snap-fit ​​wedges are respectively horizontally snap-fitted on the four outer sides of the bottom snap-fit ​​frame, and the snap-fit ​​wedges are horizontally inserted into the inside of the side sleeve groove at the end away from the bottom snap-fit ​​frame, and the insertion end is connected to the side of the pressing plate. The inner limiting grooves are arranged parallel to each other, and the inner limiting grooves are respectively vertically arranged on the inner side of the inner isolation cover near the four corners.

[0013] In a preferred embodiment of the present invention: there are multiple top-mounted springs, and the multiple top-mounted springs are evenly distributed between the top surface of the movable top plate and the inner top surface of the inner isolation cover. The limiting blocks are respectively snapped into the inner side of the inner limiting groove, and the two ends of the flipping shaft are vertically inserted into the inner side wall of the side storage groove.

[0014] In a preferred embodiment of the present invention, there are multiple heat sinks, which are arranged in parallel with each other. The positions of the heat sinks are connected to the interior of the movable top plate, and the output end of the main motor is arranged vertically downward.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] 1. This invention uses supporting poles to fix the top plate in the air, providing better heat dissipation space for the transformer. The outer isolation cover is fastened to the outer side of the transformer, and the bottom fastening frame is inserted into the inside of the fastening groove. The snap-fit ​​wedge is set inside the side sleeve groove to lock in place, preventing the outer isolation cover from falling off. At the same time, the embedded snap-fit ​​design improves the sealing performance. The inner isolation cover design provides multiple protective layers, extending the flame retardant time in case of danger. Under the support of the top spring, the movable top plate is connected to the top surface of the transformer. The rotation of the main motor causes the fan blades to transfer the heat conducted by the heat sink, allowing air to flow inside the inner isolation cover and blow out to the outside through the transmission hole.

[0017] 2. When disassembling and repairing, this invention only requires flipping the handle out from the inside of the side storage slot, holding it by hand and pressing the pressing block to compress the snap-fit ​​inclined block, thereby allowing the bottom snap-fit ​​frame to disengage from the snap-fit ​​bottom slot and complete the disassembly. The device has a simple design and is easy to operate. The snap-fit ​​method makes installation simple, and the multiple isolation and heat dissipation structures make the transformer work more stably. Attached Figure Description

[0018] Other features, objects, and advantages of the present invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0019] Figure 1 A three-dimensional structural diagram of a high-power transformer with isolation and protection devices;

[0020] Figure 2 A structural schematic diagram showing the connection details of a front cross-section of the mounting base plate of a high-power transformer with an isolation and protection device;

[0021] Figure 3 A top view of the connection details of the top fixing plate of a high-power transformer with an isolation and protection device;

[0022] Figure 4 A structural schematic diagram showing the connection details of the outer isolation cover of a high-power transformer with an isolation and protection device;

[0023] Figure 5 A structural schematic diagram showing the connection details of the front cross-section of the outer isolation cover of a high-power transformer with an isolation and protection device;

[0024] Figure 6 This is a structural schematic diagram showing the connection details of the movable top plate of a high-power transformer with an isolation and protection device.

[0025] In the diagram: 1. Fixed base plate; 2. Fixed outer frame; 3. Connecting through hole one; 4. Side sleeve groove; 5. Pressing plate; 6. Outer isolation cover; 7. Observation window; 8. Sealing plate; 9. Fastening block; 10. Side storage groove; 11. Flip handle; 12. Isolation rubber ring; 13. Fastening bottom groove; 14. Blocking block; 15. Support pole; 16. Top fixing plate; 17. Connecting through hole; 18. Transformer; 19. Transmission through hole; 20. Transmission line; 21. Inner isolation cover; 22. Limiting strip; 23. Bottom storage groove; 24. Limiting groove; 25. Bottom fastening frame; 26. Snap-fitting inclined block; 27. Inner limiting groove; 28. Movable top plate; 29. ​​Top connecting spring; 30. Limiting block; 31. Flipping shaft; 32. Ventilation channel; 33. Heat sink; 34. Inner fixing plate; 35. Main motor; 36. Fan blade. Detailed Implementation

[0026] Please see Figure 1-3In this embodiment of the invention, a high-power transformer with an isolation and protection device includes a fixed base plate 1. A fixed outer frame 2 is horizontally welded to the outer side of the fixed base plate 1. A connecting through hole 3 is uniformly opened on the top surface of the fixed outer frame 2. A side sleeve groove 4 is horizontally opened on the side of the fixed base plate 1. The fixed outer frame 2 is horizontally fixed in a U-shape on the outer side of the fixed base plate 1 near the bottom surface, and the bottom surface of the fixed outer frame 2 is at the same horizontal level as the bottom surface of the fixed base plate 1. The side sleeve grooves 4 are horizontally opened on the four sides of the fixed base plate 1, and the side sleeve grooves 4 are horizontally positioned at the center of the side of the fixed base plate 1. The inside of the side sleeve groove 4 is connected to the inside of the snap-fit ​​bottom groove 13, and the inner side of the side sleeve groove 4 is horizontally snapped. A pressing plate 5 is provided, and an outer isolation cover 6 is fastened to the top surface of the fixed base plate 1. An observation window 7 is vertically opened on one side of the outer isolation cover 6. One side of the pressing plate 5 is aligned with the inclined side of the snap-fit ​​block 26. The bottom surface of the outer isolation cover 6, near its edge, is aligned with the top surface of the isolation ring 12. Multiple observation windows 7 are arranged in a parallel, linear configuration. The interior of each observation window 7 is in communication with the interior of the outer isolation cover 6. A sealing plate 8 is vertically snapped to the inner side of each observation window 7. A snap-fit ​​block 9 is horizontally welded to one side of the sealing plate 8. Side storage grooves 10 are symmetrically opened on both sides of the outer isolation cover 6. A flip handle 11 is provided on the inner side of each side storage groove 10. The fixed base plate 1... An isolation rubber ring 12 is fixedly bonded to the top surface of the fixed base plate 1. A snap-fit ​​groove 13 is horizontally opened on the top surface of the fixed base plate 1. Blocking blocks 14 are symmetrically welded to both sides of the pressing plate 5. Supporting rods 15 are vertically welded upwards on the top surface of the fixed base plate 1. Side storage grooves 10 are symmetrically opened on both sides of the outer isolation cover 6 vertically towards the center line. The isolation rubber ring 12 is horizontally fixed on the top surface of the fixed base plate 1 near the edge, and the isolation rubber ring 12 is made of soft rubber material. The snap-fit ​​groove 13 is in the shape of a "U" and is horizontally opened on the top surface of the fixed base plate 1 near the edge. The isolation rubber ring 12 is fixed on the side of the top opening of the snap-fit ​​groove 13. There are multiple supporting rods 15, and the multiple supporting rods 15 are arranged parallel to each other. A top fixing plate 16 is horizontally welded to the top of the support pole 15. The top surface of the top fixing plate 16 is evenly provided with connecting through holes 17. A transformer 18 is connected to the top surface of the top fixing plate 16. The top surface of the fixed base plate 1 is evenly provided with transmission through holes 19. A transmission line 20 is inserted into the inner side of the transmission through hole 19. The top fixing plate 16 and the fixed base plate 1 are stacked and parallel to each other. The top of the support pole 15 is vertically welded to the bottom surface of the top fixing plate 16 near the edge. The transformer 18 is fixedly connected to the inside of the connecting through hole 17 by bolt threads. One end of the transmission line 20 extends through the transmission through hole 19 to the bottom surface of the top fixing plate 16, and the extended end is electrically connected to the transformer 18.

[0027] Please see Figure 4-6 In this embodiment of the invention, a high-power transformer with an isolation and protection device is provided. An inner isolation cover 21 is welded to the inner side of the outer isolation cover 6. Limiting strips 22 are symmetrically welded to both sides of the sealing plate 8. A bottom storage groove 23 is vertically opened on the inner bottom surface of the observation window 7. Limiting grooves 24 are symmetrically opened on the inner side of the bottom storage groove 23. A bottom fastening frame 25 is horizontally welded to the bottom surface of the outer isolation cover 6. The limiting strips 22 are vertically fixed on both sides of the sealing plate 8 and are respectively snapped into the inner side of the limiting grooves 24. The bottom storage groove 23 is opened at the center of the inner bottom surface of the observation window 7, and the bottom end of the sealing plate 8 is vertical. The bottom fastening frame 25 is shaped like a "U" and is horizontally fixed to the bottom surface of the outer isolation cover 6 near the edge. It is inserted vertically into the inner side of the fastening groove 13. A snap-fitting wedge 26 is engaged on the outer side of the bottom fastening frame 25. The inner side of the inner isolation cover 21 has symmetrically arranged inner limiting grooves 27. The snap-fitting wedges 26 are horizontally engaged on the four outer sides of the bottom fastening frame 25. The end of the snap-fitting wedge 26 furthest from the bottom fastening frame 25 is horizontally inserted into the side sleeve groove 4, with the inserted end abutting against the side of the pressing plate 5. The inner limiting grooves 27 are arranged parallel to each other, and are vertically positioned on the inner side of the inner isolation cover 21 near the four corners. A movable top plate 28 is horizontally positioned on the inner side of the inner isolation cover 21. Top springs 29 are evenly distributed on the top surface of the movable top plate 28. Limiting blocks 30 are symmetrically welded to both sides of the movable top plate 28. A flip handle 11 is horizontally inserted into both ends with a flip shaft 31. Multiple top springs 29 are evenly distributed between the top surface of the movable top plate 28 and the inner top surface of the inner isolation cover 21. The limiting blocks 30 are correspondingly engaged with the inner limiting grooves 27. At the inner side of 7, the two ends of the flipping shaft 31 are vertically inserted into the inner side wall of the side storage groove 10. The top surface of the movable top plate 28 is evenly provided with ventilation channels 32. The bottom surface of the movable top plate 28 is evenly welded with heat sinks 33. The inner side of the movable top plate 28 is horizontally welded with an inner fixing plate 34. The inner side of the inner fixing plate 34 is vertically clamped with a main motor 35. There are multiple heat sinks 33, and the multiple heat sinks 33 are arranged parallel to each other. The positions of the heat sinks 33 are connected to the interior of the movable top plate 28. The output end of the main motor 35 is vertically downward and a fan blade 36 is fixedly sleeved on the output end of the main motor 35.

[0028] All components are general standard parts or components known to those skilled in the art, and their structure and principles can be learned by those skilled in the art through technical manuals or conventional experimental methods.

[0029] The working principle of this invention is:

[0030] The base plate 1 is placed horizontally in the designated position and fixed in place by bolts inserted into the connecting through hole 3. The transformer 18 is then fixed to the top surface of the top fixing plate 16 by bolts. The use of support poles 15 to support the top fixing plate 16 provides better heat dissipation space for the transformer 18. The outer isolation cover 6 is then fastened to the outer side of the transformer 18, with the bottom fastening frame 25 inserted into the fastening groove 13. The snap-fit ​​wedge 26 is positioned inside the side sleeve groove 4 to secure the outer isolation cover 6 and prevent it from falling off. The embedded snap-fit ​​design improves sealing. The design of the isolation cover 21 provides multiple protective layers, extending its flame-retardant time in case of danger. Under the support of the top spring 29, the movable top plate 28 is positioned on the top surface of the transformer 18. The rotation of the main motor 35 causes the fan blades to transfer the heat conducted by the heat sink 33, allowing air to flow inside the inner isolation cover 21 and be blown out to the outside through the transmission hole 19. For disassembly and maintenance, simply flip the flip handle 11 out from the inside of the side storage slot 10, lift it by hand, and press the pressing block 5 to compress the snap-fit ​​inclined block 26, thereby allowing the bottom snap-fit ​​frame 25 to disengage from the snap-fit ​​bottom groove 13 and complete the disassembly.

[0031] The above description is merely a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A high-power transformer with an isolation and protection device, comprising a fixed base plate (1), characterized in that, A fixed outer frame (2) is horizontally welded to the outer side of the fixed base plate (1). A connecting through hole (3) is evenly opened on the top surface of the fixed outer frame (2). A side sleeve groove (4) is horizontally opened on the side of the fixed base plate (1). A pressing plate (5) is horizontally snapped onto the inner side of the side sleeve groove (4). An outer isolation cover (6) is fastened to the top surface of the fixed base plate (1). An observation window (7) is vertically opened on one side of the outer isolation cover (6). A sealing plate (8) is vertically snapped onto the inner side of the observation window (7). A fastening block (9) is horizontally welded to one side of the sealing plate (8). Side storage grooves (10) are symmetrically opened on both sides of the outer isolation cover (6). A flip handle (11) is provided on the inner side of the side storage slot (10). An isolation rubber ring (12) is fixedly bonded to the top surface of the fixed base plate (1). A snap-fit ​​bottom groove (13) is horizontally opened on the top surface of the fixed base plate (1). Blocking blocks (14) are symmetrically welded to both sides of the pressing plate (5). A support rod (15) is vertically welded to the top surface of the fixed base plate (1). A top fixing plate (16) is horizontally welded to the top of the support rod (15). A connecting through hole (17) is evenly opened on the top surface of the top fixing plate (16). A transformer (18) is connected to the top surface of the top fixing plate (16). A transmission through hole is evenly opened on the top surface of the fixed base plate (1). (19), a transmission line (20) is inserted into the inner side of the transmission through hole (19), an inner isolation cover (21) is welded to the inner side of the outer isolation cover (6), limit strips (22) are symmetrically welded to both sides of the sealing plate (8), a bottom storage groove (23) is vertically opened on the inner bottom surface of the observation window (7), a limit groove (24) is symmetrically opened on the inner side of the bottom storage groove (23), a bottom fastening frame (25) is horizontally welded to the bottom surface of the outer isolation cover (6), a fastening wedge (26) is snapped onto the outer side of the bottom fastening frame (25), an inner limiting groove (27) is symmetrically opened on the inner side of the inner isolation cover (21), and the inner side of the inner isolation cover (21) is... A movable top plate (28) is horizontally arranged on one side. A top spring (29) is evenly arranged on the top surface of the movable top plate (28). Restriction blocks (30) are symmetrically welded on both sides of the movable top plate (28). A flipping shaft (31) is horizontally inserted into both ends of the flipping handle (11). Ventilation channels (32) are evenly opened on the top surface of the movable top plate (28). Heat sinks (33) are evenly welded on the bottom surface of the movable top plate (28). An inner fixing plate (34) is horizontally welded on the inner side of the movable top plate (28). A main motor (35) is vertically clamped on the inner side of the inner fixing plate (34). A fan blade (36) is fixedly sleeved on the output end of the main motor (35).

2. A high-power transformer with an isolation and protection device according to claim 1, characterized in that, The fixed outer frame (2) is horizontally fixed in a U-shape on the outer side of the fixed base plate (1) near the bottom surface, and the bottom surface of the fixed outer frame (2) and the bottom surface of the fixed base plate (1) are at the same horizontal level. The side sleeve grooves (4) are horizontally opened on the four sides of the fixed base plate (1), and the side sleeve grooves (4) are horizontally set at the center of the side of the fixed base plate (1). The inside of the side sleeve grooves (4) is connected to the inside of the snap-fit ​​bottom groove (13).

3. A high-power transformer with an isolation and protection device according to claim 1, characterized in that, One side of the pressing plate (5) is connected to the inclined side of the snap-fit ​​block (26), and the bottom surface of the outer isolation cover (6) is connected to the top surface of the isolation rubber ring (12) near the edge. There are multiple observation windows (7), and the multiple observation windows (7) are arranged in a parallel line with each other. The interior of the multiple observation windows (7) is connected to the interior of the outer isolation cover (6).

4. A high-power transformer with an isolation and protection device according to claim 1, characterized in that, The side storage slots (10) are symmetrically opened on both sides of the outer isolation cover (6) vertically towards the center line. The isolation rubber ring (12) is horizontally fixed on the top surface of the fixed base plate (1) near the edge. The isolation rubber ring (12) is made of soft rubber material. The snap-fit ​​bottom groove (13) is horizontally opened in a square shape on the top surface of the fixed base plate (1) near the edge. The isolation rubber ring (12) is fixed on the top opening side of the snap-fit ​​bottom groove (13). There are multiple support poles (15), and the multiple support poles (15) are arranged parallel to each other.

5. A high-power transformer with an isolation and protection device according to claim 1, characterized in that, The top fixing plate (16) and the fixed base plate (1) are stacked and parallel to each other, and the top of the support rod (15) is vertically welded to the bottom surface of the top fixing plate (16) near the edge. The transformer (18) is fixedly connected to the inside of the connecting through hole (17) by bolt thread. One end of the transmission line (20) extends through the transmission through hole (19) to the bottom surface of the top fixing plate (16), and the extension end is electrically connected to the transformer (18).

6. A high-power transformer with an isolation and protection device according to claim 1, characterized in that, The limiting strip (22) is vertically fixed on both sides of the sealing plate (8) and is respectively snapped into the inner side of the limiting groove (24). The bottom storage groove (23) is opened at the center of the inner bottom surface of the observation window (7), and the bottom end of the sealing plate (8) is vertically inserted into the inner side of the top opening of the bottom storage groove (23). The bottom fastening frame (25) is set in a square shape, and the bottom fastening frame (25) is horizontally fixed on the bottom surface of the outer isolation cover (6) near the edge. The bottom fastening frame (25) is vertically inserted into the inner side of the fastening bottom groove (13).

7. A high-power transformer with an isolation and protection device according to claim 1, characterized in that, The snap-fitting oblique blocks (26) are respectively horizontally snap-fitted on the four outer sides of the bottom snap-fitting frame (25), and the snap-fitting oblique blocks (26) are horizontally inserted into the inside of the side sleeve groove (4) at the end away from the bottom snap-fitting frame (25), and the insertion end is connected to the side of the pressing plate (5). The inner limiting grooves (27) are arranged parallel to each other, and the inner limiting grooves (27) are respectively vertically arranged on the inner side of the inner isolation cover (21) near the four corners.

8. A high-power transformer with an isolation and protection device according to claim 1, characterized in that, The number of top springs (29) is multiple, and the multiple top springs (29) are evenly arranged between the top surface of the movable top plate (28) and the inner top surface of the inner isolation cover (21). The limiting blocks (30) are respectively snapped into the inner side of the inner limiting groove (27). The two ends of the flipping shaft (31) are vertically inserted into the inner side wall of the side storage groove (10).

9. A high-power transformer with an isolation and protection device according to claim 1, characterized in that, The number of heat sinks (33) is multiple, and the multiple heat sinks (33) are arranged in parallel with each other. The positions of the heat sinks (33) are connected to the interior of the movable top plate (28), and the output end of the main motor (35) is set vertically downward.

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