Low-energy-consumption amorphous alloy power transformer

Abstract

The invention relates to the technical field of intelligent power grids, in particular to a low-energy-consumption amorphous alloy power transformer which comprises a main body installed on the top face of a cross arm between two wire poles, a plurality of cooling fins are fixedly arranged on the periphery of the main body, and a supporting frame is fixedly arranged on the bottom face of the main body; a protection plate is arranged below the main body in the horizontal direction, and vertically-upward connecting rods are detachably installed on the left side face and the right side face of the protection plate. The left edge and the right edge of the bottom face of the protection plate are provided with locking pieces fixedly connected with the wire rod. Positioning plates are detachably installed on the front sides of the two connecting rods in the vertical direction, a flexible warning banner located between the two positioning plates is arranged below the body, and the side faces, close to each other, of the two positioning plates are fixedly connected with the left side face and the right side face of the flexible warning banner. The flexible warning banner is installed between the bottom face of the main body and the top face of the protection plate, the height of the warning position is remarkably increased, grass and tree shielding on the ground is reduced, and it is guaranteed that warning information is clear and visible.

Description

Technical Field

[0001] This application relates to the technical field of smart grids, and in particular to a low-energy-consumption amorphous alloy power transformer. Background Technology

[0002] In the construction and upgrading of the distribution side of smart grids, amorphous alloy power transformers, with their core advantages of low loss and high efficiency, have become key equipment in pole-mounted distribution scenarios. The core structure of this type of transformer includes a main tank with a support frame fixed to its bottom to ensure installation stability, and heat dissipation fins welded to its outer perimeter to enhance heat dissipation during operation. Inside the tank, an amorphous alloy core and square-section coils are installed. The amorphous alloy core adopts a three-phase, four-frame, five-column wound core structure, significantly reducing no-load losses. This transformer is mainly used in power supply scenarios for substation users. It is bolted to the upper surface of the pole crossarm and can efficiently adapt to the dispersed and variable power supply needs of the distribution side, playing a significant role in improving the energy utilization efficiency of smart grids.

[0003] Standardized procedures have been established for the pole-mounted installation and safety protection of existing amorphous alloy power transformers. The installation process relies on the precise alignment of the base support frame with the pole crossarm, secured with high-strength bolts to ensure structural stability in complex outdoor environments. To address the safety warning requirements for outdoor operation on the distribution side, the industry commonly employs the protective measure of hanging warning signs on the bottom of the transformer. These signs typically display warnings such as "High Voltage Danger" and "Do Not Approach" to alert unauthorized personnel to avoid risks.

[0004] When a transformer is installed on a pillar surrounded by lush vegetation, the rapid growth and wide coverage of the vegetation make it easy for the warning signs, which are hung at a low height below the transformer, to be obscured. This directly results in the warning information on the signs being difficult to see, significantly reducing visibility and rendering the safety warning function ineffective in alerting passersby to avoid high-voltage risks. There is room for improvement in this situation. Summary of the Invention

[0005] The purpose of this application is to provide a low-energy-consumption amorphous alloy power transformer to solve the problems in the above-mentioned related technologies where warning signs installed on poles are easily covered by vegetation, resulting in low visibility of warning information and failure of safety warning functions.

[0006] This application provides a low-energy-consumption amorphous alloy power transformer using the following technical solution: A low-energy-consumption amorphous alloy power transformer includes a main body installed on the top surface of a crossarm between two poles. Several heat dissipation fins are fixedly mounted on the outer periphery of the main body, and a support frame is fixedly mounted on its bottom surface. A protective plate is provided horizontally below the main body, and vertically upward connecting rods are detachably mounted on the left and right sides of the protective plate. Locking elements that are fixedly connected to the poles are provided at the left and right edges of the bottom surface of the protective plate. Positioning plates are detachably mounted vertically on the front sides of the two connecting rods. A flexible warning banner is located between the two positioning plates below the main body. The sides of the two positioning plates that are close to each other are fixedly connected to the left and right sides of the flexible warning banner, and the protective plate is in a protective state at this time.

[0007] By adopting the above technical solution, the flexible warning banner is installed between the bottom surface of the main body and the top surface of the protective plate, significantly increasing the height of the warning position, reducing ground vegetation obstruction, ensuring clear visibility of the warning information, ensuring the effective functioning of the safety warning function, and reducing the risk of high-voltage electric shock. The protective plate is fixed to the pole with locking components, and the connecting rod and positioning plate are detachably connected, which not only enhances the installation stability of the protective plate and adapts to complex outdoor environments, but also facilitates transportation, storage, and maintenance. The overall structure takes into account both the effectiveness of the warning and the reliability of the installation. In conjunction with the low energy consumption advantage of the amorphous alloy transformer, it is better adapted to the application scenarios on the distribution side pole, and helps the smart grid operate safely and efficiently.

[0008] Optionally, the end of the connecting rod is rotatably connected to the main body, and the rotating surface of the connecting rod is parallel to the left and right sides of the main body; the connecting rod can be rotated to a vertically upward state and fixed during equipment transportation, and the protective plate is in a stored state located horizontally above the main body at this time.

[0009] By adopting the above technical solution, the connecting rod is rotated to a vertically upward fixed position during transportation, which drives the protective plate to be stored on top of the main body, greatly reducing the transportation volume of the equipment, reducing the transportation space occupation rate and loading and unloading difficulty, improving the convenience of transfer, and at the same time avoiding damage to the protective components during transportation.

[0010] Optionally, the protective plate has installation notches on both the left and right edges of its bottom surface when it is in the protective state. The locking component includes a locking rod with one end rotatably connected to the two installation notches away from each other at their edges, and a locking clamp fixed to the other end of the locking rod. The locking rod is a telescopic structure with adjustable length. When the protective plate is in the protective state, the two locking rods rotate in opposite directions to a horizontal state that is dislodged from the installation notches, and when the protective plate is in the retracted state, they rotate in opposite directions to a retracted state that is within the installation notches.

[0011] By adopting the above technical solution, in the protective state, the locking rod rotates out of the installation notch to a horizontal position, which can be adapted to different pole spacings through the length adjustable structure, and is firmly fixed to the pole with the locking clamp, enhancing the installation reliability of the protective plate and improving the outdoor anti-interference capability of the equipment; in the storage state, the locking rod rotates into the installation notch, and the locking clamp is stored at the same time, effectively reducing the transportation volume and avoiding damage to the components during transportation. Moreover, the structural rotation connection design is simple and reliable, and the state switching can be completed without disassembly, improving the efficiency of operation, maintenance and transportation.

[0012] Optionally, when the protective plate is in the protective state, a weed-removing rod is rotatably provided on both the front and rear edges of the bottom surface, and a driving component is fixed on the top surface to drive the weed-removing rod to rotate in the horizontal direction; a limiting block is fixed on the side of the protective plate facing the weed-removing rod, and a limiting notch is provided on the limiting block; when the two weed-removing rods rotate into the limiting notch, they are in a side-by-side and parallel storage state, and the driving component can drive the weed-removing rods to reciprocate in the direction away from the limiting block.

[0013] By adopting the above technical solution, during application, the driving component drives the weed-removing rod to rotate back and forth according to a preset time (which can cooperate with sensors and remote controllers). This effectively moves and clears vegetation higher than the protective plate, preventing vegetation from obstructing the flexible warning banner or contacting the transformer body, ensuring the effectiveness of the warning function and the safe operation of the equipment. During transportation, the weed-removing rod can be rotated into the limiting notch of the limiting block to be in a retracted state, reducing transportation volume and component collision damage. The overall structure automates vegetation clearing, reduces manual maintenance costs, and is suitable for outdoor pole-mounted installation scenarios with abundant vegetation.

[0014] Optionally, a receiving groove is provided on the side of the two positioning plates that are close to each other, and the edge of the flexible warning banner is fixedly connected to the inner wall of the receiving groove; the two positioning plates can be removed from the connecting rod during equipment transportation, and the side of the two positioning plates that are close to each other abut against each other, at which time the flexible warning banner is stored in the receiving groove.

[0015] By adopting the above technical solution, the positioning plate can be removed from the connecting rod during transportation. After the two plates abut against each other, the flexible warning banner can be completely stored in the receiving slot, preventing the banner from being damaged or wrinkled due to scratches or squeezing during transportation, thus ensuring its clarity and warning effect for repeated use. At the same time, the stored positioning plate and banner form a compact structure, further reducing the overall transportation volume of the equipment and reducing the occupancy rate of the transportation space. In addition, the receiving slot's wrapping-like storage of the banner can reduce the corrosion of the banner by dust, moisture, etc., and extend its outdoor service life.

[0016] Optionally, the positioning plate is fixed with a plurality of positioning blocks, the connecting rod is provided with a plurality of first slots, and the grass-removing rod is provided with a plurality of second slots on the side away from the protective plate; the plurality of positioning blocks are embedded in the first slots when the positioning plate is installed on the connecting rod, and are embedded in the second slots when the two positioning plates abut against each other and the protective plate is in the retracted state; the positioning blocks limit and lock the two grass-removing rods in the retracted state when embedded in the second slots.

[0017] By adopting the above technical solution, in the application state, the positioning block is embedded in the first slot of the connecting rod, which can firmly lock the relative position of the positioning plate and the connecting rod, preventing the flexible warning banner from shifting due to external force and ensuring the stability of the warning effect; in the transportation state, after the positioning plate is removed from the connecting rod, the positioning block is embedded in the second slot of the weeding rod, which can limit and lock the weeding rod stored in the limiting notch, preventing the weeding rod from loosening and shifting due to transportation bumps, while making the positioning plate and the weeding rod form a compact integral structure, further reducing the transportation volume and improving the convenience of transfer.

[0018] Optionally, when the protective plate is in the retracted state, an installation groove is provided on the bottom surface, and an elastic limiting plate is provided on one side that is rotatably connected to the installation groove. The elastic limiting plate has the property of elastic elongation. A first limiting groove is provided on the side wall of the installation groove, and a second limiting groove is provided on the top surface of the main body. When the protective plate is in the protective state, the elastic limiting plate can be rotated into the installation groove and its end is locked into the first limiting groove. When the protective plate is in the retracted state, it can be rotated to a vertically downward state and its end is locked into the second limiting groove.

[0019] By adopting the above technical solution, in the protective state, the elastic limiting plate rotates into the installation groove and engages with the first limiting groove, preventing the limiting plate from being exposed and causing scratches or interference, while also helping to enhance the structural stability of the protective plate. In the storage state, the elastic limiting plate rotates to a vertically downward position and engages with the second limiting groove on the top surface of the main body, which can firmly fix the relative position of the protective plate and the main body, preventing the protective plate from shaking or shifting due to transportation bumps. The overall structure requires no additional fasteners, the state switching operation is simple, and it effectively ensures the safety of equipment transportation and application.

[0020] Optionally, a traction bar is rotatably provided on the outer surface of the elastic limiting plate, and the traction bar can drive the end of the elastic limiting plate to disengage from the first limiting groove and the second limiting groove.

[0021] By adopting the above technical solution, when it is necessary to switch the state of the protective plate, the staff only needs to pull the traction bar to quickly disengage the end of the elastic limit plate from the first or second limit groove without the need for special tools, which simplifies the operation steps; at the same time, the rotation connection design of the traction bar avoids the problem of falling off or getting stuck during use, ensuring the stability and reliability of the unlocking action.

[0022] Optionally, the outer periphery of the traction bar is provided with an elastic snap-fit ​​component, and the lower edges of the two positioning plates that are close to each other when they are installed on the connecting rod are provided with a fixing notch, and the inner wall of the fixing notch is provided with a positioning groove; when the protective plate is in the protective state, the traction bar can be rotated to a vertically upward state, and the traction bar is snapped into the fixing notch at this time, and the elastic snap-fit ​​component is snapped into the positioning groove.

[0023] By adopting the above technical solution, in the protective state, the traction strip rotates to a vertically upward position and engages with the fixing notch of the positioning plate. The elastic snap-fit ​​component simultaneously engages with the positioning groove, which further strengthens the connection between the positioning plate and the connecting rod, preventing the positioning plate from swaying or shifting due to external forces such as wind, and ensuring the stability of the flexible warning banner in its unfolded state. At the same time, this design does not require additional reinforcement components, utilizes the existing traction strip structure to achieve multiple functions, simplifies the overall structural design, reduces production costs, and makes the snap-fit ​​and unlocking operations convenient, adapting to the operation and maintenance needs of outdoor pole-mounted equipment.

[0024] Optionally, the elastic snap-fit ​​component includes a compression spring and an arc-shaped protrusion. The traction bar has a placement groove for the compression spring and the arc-shaped protrusion to be placed in. The compression spring squeezes one side of the arc-shaped protrusion, causing a part of the arc-shaped protrusion to protrude from the opening of the placement groove. The outer surface of the protruding part of the arc-shaped protrusion is an arc surface, and the arc length corresponding to this arc surface is a minor arc.

[0025] By adopting the above technical solution, the structural design of the compression spring and the arc-shaped protrusion enables the quick engagement and unlocking of the elastic snap-fit ​​component: the arc surface design of the protrusion makes it smooth and without jamming when it is snapped into the positioning groove, and the compression spring provides continuous elastic support to ensure the stability of the engagement; when unlocking, the external force only needs to overcome the elastic force of the compression spring to make the protrusion retract, without the need for special tools, which greatly improves the convenience of operation.

[0026] In summary, this application includes the following beneficial technical effects: This application installs a flexible warning banner between the bottom surface of the main body and the top surface of the protective panel, significantly increasing the height of the warning position, reducing obstruction by ground vegetation, ensuring that the warning information is clearly visible, ensuring that the safety warning function is effectively performed, and reducing the risk of high-voltage electric shock. The protective panel is fixed to the pole by locking components, and the connecting rod and positioning plate are detachably connected, which not only enhances the installation stability of the protective panel and adapts to complex outdoor environments, but also facilitates transportation, storage, and maintenance. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application; Figure 2 This is a schematic diagram illustrating the installation and assembly of the protective components in an embodiment of this application; Figure 3 This is a partial structural diagram illustrating the installation and assembly of the protective plate in an embodiment of this application; Figure 4 This is a schematic diagram illustrating the installation and assembly of the weed-removing rod in an embodiment of this application; Figure 5 This is an exploded structural diagram illustrating the installation distribution of the display components and connecting rods in an embodiment of this application; Figure 6 This is a cross-sectional structural diagram illustrating the installation and cooperation of the positioning plate and the connecting rod in an embodiment of this application; Figure 7 This is a cross-sectional structural diagram illustrating the installation and cooperation of the positioning plate and the weeding rod in an embodiment of this application; Figure 8 This is a partial cross-sectional view of the installation and fit of the elastic limiting plate in an embodiment of this application; Figure 9 This is a partial cross-sectional view of the installation and assembly of the traction bar in an embodiment of this application; Figure 10 yes Figure 9 An enlarged schematic diagram of part A in the middle.

[0028] In the diagram, 1. Main body; 11. Heat dissipation fins; 12. Support frame; 13. Second limiting groove; 2. Protective component; 21. Protective plate; 211. Installation notch; 212. Installation recess; 2121. First limiting groove; 22. Connecting rod; 221. First slot; 23. Weeding rod; 231. Second slot; 24. Driving component; 25. Limiting block; 251. Limiting notch; 26. Elastic limiting plate; 27. Traction bar; 271. Placement groove; 28. Elastic snap-fit ​​component; 281. Compression spring; 282. Arc-shaped protrusion; 3. Locking component; 31. Locking rod; 32. Locking clamp; 4. Display component; 41. Positioning plate; 411. Receiving groove; 412. Positioning insert; 413. Fixing notch; 4131. Positioning groove; 42. Flexible warning banner. Detailed Implementation

[0029] The present application will be further described in detail below with reference to all the accompanying drawings. Example

[0030] Reference Figure 1 and Figure 2 A low-energy-consuming amorphous alloy power transformer includes a main body 1 installed on the top surface of a crossarm between two poles. Several heat dissipation fins 11 are fixed on the outer periphery of the main body 1 and a support frame 12 is fixed on the bottom surface. A protective component 2 is provided below the main body 1. The protective component 2 includes a protective plate 21 arranged horizontally below the main body 1. Vertical connecting rods 22 are detachably installed on the left and right sides of the protective plate 21. The left and right edges of the bottom surface of the protective plate 21 are provided with locking parts 3 that are fixedly connected to the pole; the front side of the two connecting rods 22 is provided with a display component 4, wherein the display component 4 includes a positioning plate 41 that is detachably installed on the front side of the two connecting rods 22 in the vertical direction, and a flexible warning banner 42 located between the two positioning plates 41 is provided below the main body 1, and the sides of the two positioning plates 41 that are close to each other are fixedly connected to the left and right sides of the flexible warning banner 42. When the device is in use, the flexible warning banner 42 is installed between the bottom surface of the main body 1 and the top surface of the protective plate 21 to reduce the obstruction of the flexible warning banner 42 by the ground vegetation, and the installation stability of the protective plate 21 is enhanced by the locking part 3. At this time, the protective plate 21 is in a protective state.

[0031] Reference Figure 3 The end of the connecting rod 22 is rotatably connected to the main body 1, and the rotating surface of the connecting rod 22 is parallel to the left and right sides of the main body 1. During equipment transportation, the connecting rod 22 can be rotated to a vertically upward state and fixed, and the protective plate 21 is in a storage state located above the main body 1 in a horizontal direction.

[0032] Reference Figure 3 and Figure 4 The protective plate 21 has installation notches 211 on both the left and right edges of its bottom surface when it is in the protected state. The locking component 3 includes a locking rod 31 with one end rotatably connected to the two installation notches 211 at a distance from each other, and a locking clamp 32 fixed to the other end of the locking rod 31. The locking rod 31 is a conventional telescopic rod structure with adjustable length (fastened with bolts). The specific telescopic structure will not be described in detail here. When the protective plate 21 is in the protective state (i.e., when the equipment is installed and used), the two locking rods 31 rotate in opposite directions to a horizontal state that is disengaged from the installation notch 211. At this time, the locking clamp 32 is fixed to the outer periphery of the corresponding pole. When the protective plate 21 is in the storage state (i.e., when the equipment is transported), the two locking rods 31 rotate in opposite directions to a storage state within the installation notch 211. The locking clamp 32 is simultaneously stored within the installation notch 211, reducing the overall volume during transport.

[0033] Reference Figure 4 and Figure 5 When the protective plate 21 is in the protective state, a grass-pulling rod 23 is rotatably provided on the front and rear edges of the bottom surface, and a driving component 24 is fixed on the top surface to drive the grass-pulling rod 23 to rotate in the horizontal direction. The driving component 24 is a conventional small motor. This is a conventional driving structure, which will not be described in detail here. A limiting block 25 is fixed on the side of the protective plate 21 facing the grass-pulling rod 23. A limiting notch 251 is opened on the limiting block 25. When the two grass-pulling rods 23 are rotated into the limiting notch 251, they are in a side-by-side and parallel storage state. When the device is in normal use, the driving component 24 can drive the grass-pulling rod 23 to rotate back and forth in the direction away from the limiting block 25, so as to use the grass-pulling rod 23 to poke and clean the grass and trees above the protective plate 21 in this state.

[0034] Reference Figure 6 and Figure 7 The two positioning plates 41 are provided with receiving grooves 411 on their sides that are close to each other, and the edge of the flexible warning banner 42 is fixedly connected to the inner wall of the receiving groove 411; two positioning blocks 412 are fixedly provided on the positioning plates 41, two first slots 221 are provided on each of the two connecting rods 22, and two second slots 231 are provided on the sides of the two grass-removing rods 23 that are away from the protective plate 21. During equipment transportation, the positioning block 412 is dislodged from the first slot 221, allowing the two positioning plates 41 to be removed from the connecting rod 22, turning the protective plate 21 to the storage state, and turning both grass-pulling rods 23 into the limiting notch 251; then the sides of the two positioning plates 41 that are close to each other are brought together, and the flexible warning banner 42 is stored in the receiving slot 411, so that the positioning block 412 is inserted into the corresponding second slot 231. At this time, the length direction of the positioning plate 41 is perpendicular to the length direction of the grass-pulling rod 23, and the positioning plate 41 is used to limit and lock the two grass-pulling rods 23.

[0035] Reference Figure 8 and Figure 9 When the protective plate 21 is in the storage state, an installation groove 212 is provided on the bottom surface, and an elastic limiting plate 26 is provided on one side that is rotatably connected to the installation groove 212. A traction strip 27 is rotatably provided on the outer side of the elastic limiting plate 26. The elastic limiting plate 26 has the property of elastic elongation. The elastic limiting plate 26 is a conventional telescopic structure with an internal spring, which will not be described in detail here. A first limiting groove 2121 is provided on the side wall of the installation groove 212, and a second limiting groove 13 is provided on the top surface of the main body 1. When the protective plate 21 is in the protective state, the elastic limiting plate 26 can be rotated into the installation groove 212 and its end is locked into the first limiting groove 2121; when the protective plate 21 is in the storage state, the elastic limiting plate 26 can be rotated to the vertical downward state and its end is locked into the second limiting groove 13; and the staff can use the traction bar 27 to drive the end of the elastic limiting plate 26 to quickly detach from the first limiting groove 2121 and the second limiting groove 13.

[0036] Reference Figure 9 and Figure 10When the two positioning plates 41 are installed on the connecting rod 22, a fixing notch 413 is provided at the lower edge where they are close to each other. A positioning groove 4131 is provided on the inner wall of the fixing notch 413. An elastic snap-fit ​​28 is provided on the outer periphery of the traction bar 27. The elastic snap-fit ​​28 includes a compression spring 281 and an arc-shaped protrusion 282. The traction bar 27 has a placement groove 271 for inserting the compression spring 281 and the arc-shaped protrusion 282. The compression spring 281 squeezes one side of the arc-shaped protrusion 282, causing a part of the arc-shaped protrusion 282 to protrude from the opening of the placement groove 271. The outer side of the protruding part of the arc-shaped protrusion 282 is an arc surface, and the arc length corresponding to this arc surface is a minor arc. When the protective plate 21 is in the protective state, the traction bar 27 can be rotated to a vertically upward state. At this time, the traction bar 27 is inserted into the fixing notch 413, and the elastic snap-fit ​​28 is simultaneously inserted into the positioning groove 4131. In this way, the traction bar 27 is used to further enhance the installation stability of the positioning plate 41.

[0037] The implementation principle of this application embodiment is as follows: In transport mode, the positioning plate 41 is detached from the connecting rod 22, the flexible warning banner 42 is stored in the receiving slot 411, the grass-removing rod 23 is rotated into the notch of the limiting block 25 for storage, and the locking rod 31 is rotated into the installation notch 211 for storage. The rotation of the connecting rod 22 causes the protective plate 21 to rotate to the top of the main body 1 and be stored in the retracted state. The elastic limiting plate 26 rotates to be vertically downward and is locked into the second limiting slot 13 of the main body 1. Then, the positioning plate 41 is inserted into the second slot 231 through the positioning insert 412 to achieve limiting. This greatly reduces the transport volume and achieves convenient transfer.

[0038] In the application state, the connecting rod 22 is vertically downward, and the protective plate 21 is horizontally positioned below the main body 1 for protection. The positioning plate 41 is mounted on the connecting rod 22, and the flexible warning banner 42 is unfolded and positioned between the main body 1 and the protective plate 21. The locking rod 31 rotates out from the installation notch 211 to a horizontal position and is fixed to the pole by the adjustable length locking rod 31 and the locking clamp 32, enhancing the installation stability of the protective plate 21. The elastic limiting plate 26 rotates into the installation recess 212 and engages with the first limiting groove 2121. The traction strip 27 rotates to a vertically upward position and engages with the fixing notch 413. The elastic snap-fit ​​28 engages with the positioning groove 4131 and the fixing plate 41 is fixed. The driving component 24 drives the weeding rod 23 to rotate back and forth, clearing grass and trees higher than the protective plate 21.

[0039] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, all equivalent changes made to the structure, shape, and principle of this application should be included within the scope of protection of this application.

Claims

1. A low-energy amorphous alloy power transformer, comprising a main body (1) installed on the top surface of a cross arm between two wire poles, a plurality of heat dissipation fins (11) being fixed on the outer periphery of the main body (1), and a support frame (12) being fixed on the bottom surface of the main body (1); characterized in that, The lower part of the main body (1) is provided with a protection plate (21) in horizontal direction, and vertical upward connecting rods (22) are detachably installed on the left and right sides of the protection plate (21); The left and right edges of the bottom surface of the protection plate (21) are provided with locking members (3) fixedly connected with the line rods; the front sides of the two connecting rods (22) are detachably installed with positioning plates (41) in vertical direction, and the lower part of the main body (1) is provided with a flexible warning banner (42) between the two positioning plates (41), the mutually close sides of the two positioning plates (41) are fixedly connected with the left and right sides of the flexible warning banner (42), and the protection plate (21) is in a protection state at this time.

2. The low-loss amorphous alloy power transformer of claim 1, wherein The end of the connecting rod (22) is rotatably connected with the main body (1), and the rotating surface of the connecting rod (22) is parallel to the left and right sides of the main body (1); the connecting rod (22) can be rotated to a vertical upward state and fixed during equipment transportation, and the protection plate (21) is in a storage state above the main body (1) at this time.

3. The low-loss amorphous alloy transformer of claim 2, wherein, The left and right edges of the bottom surface of the protection plate (21) are provided with installation notches (211) when the protection plate (21) is in a protection state, and the locking member (3) comprises a locking rod (31) rotatably connected with the mutually distant edges of the two installation notches (211), and a locking clamp (32) fixedly connected with the other end of the locking rod (31); The locking rod (31) is a telescopic structure with adjustable length, and the two locking rods (31) are rotated away from the horizontal state of the installation notches (211) when the protection plate (21) is in a protection state, and are rotated into the storage state in the installation notches (211) when the protection plate (21) is in a storage state.

4. The low-loss amorphous alloy transformer of claim 2, wherein The front and rear edges of the bottom surface of the protection plate (21) are rotatably provided with grass moving rods (23) when the protection plate (21) is in a protection state, and the top surface is fixedly provided with a driving member (24) for driving the grass moving rods (23) to rotate in horizontal direction; The side of the protection plate (21) facing the grass moving rod (23) is fixedly provided with a limiting block (25), and a limiting notch (251) is formed in the limiting block (25); the two grass moving rods (23) are in a storage state of side by side and parallel to each other when they are rotated into the limiting notch (251), and the driving member (24) can drive the grass moving rods (23) to reciprocally rotate away from the limiting block (25).

5. The low-loss amorphous alloy transformer of claim 4, wherein, The mutually close sides of the two positioning plates (41) are provided with accommodating grooves (411), and the edges of the flexible warning banner (42) are fixedly connected with the inner walls of the accommodating grooves (411); the two positioning plates (41) can be removed from the connecting rods (22) during equipment transportation, the mutually close sides of the two positioning plates (41) are abutted towards each other, and the flexible warning banner (42) is stored in the accommodating grooves (411) at this time.

6. The low-loss amorphous alloy transformer of claim 5, wherein, A plurality of positioning plug blocks (412) are fixedly arranged on the positioning plate (41), a plurality of first insertion grooves (221) are formed in the connecting rod (22), and a plurality of second insertion grooves (231) are formed in the side of the grass moving rod (23) away from the protection plate (21). A plurality of positioning blocks (412) are embedded in the first slot (221) when the positioning plate (41) is installed on the connecting rod (22), and are embedded in the second slot (231) when the two positioning plates (41) abut against each other and the protection plate (21) is in the storage state; the positioning blocks (412) limit and lock the two grass shoveling rods (23) in the storage state when they are embedded in the second slot (231).

7. The low-loss amorphous alloy transformer of claim 2, wherein An installation recess (212) is formed on the bottom surface of the protection plate (21) in the storage state, and an elastic limiting plate (26) is arranged on one side of the installation recess (212) in a rotatable manner; the elastic limiting plate (26) has the performance of elastic elongation. A first limiting groove (2121) is formed on the side wall of the installation recess (212), and a second limiting groove (13) is formed on the top surface of the main body (1); the elastic limiting plate (26) can be rotated into the installation recess (212) and the end portion is clamped into the first limiting groove (2121) when the protection plate (21) is in the protection state, and the elastic limiting plate (26) can be rotated to the vertical downward state and the end portion is clamped into the second limiting groove (13) when the protection plate (21) is in the storage state.

8. The low-loss amorphous alloy transformer of claim 7, wherein, An external side of the elastic limiting plate (26) is rotatably provided with a traction strip (27), which can drive the end portion of the elastic limiting plate (26) to be pulled out of the first limiting groove (2121) and the second limiting groove (13).

9. The low-loss amorphous alloy transformer of claim 8, wherein, An elastic clamping piece (28) is arranged on the outer periphery of the traction strip (27), and a fixed notch (413) is formed on the lower edge of each of the two positioning plates (41) when they are installed on the connecting rod (22); a positioning groove (4131) is formed on the inner wall of the fixed notch (413); the traction strip (27) can be rotated to the vertical upward state when the protection plate (21) is in the protection state, and the traction strip (27) is clamped into the fixed notch (413) at this time, and the elastic clamping piece (28) is clamped into the positioning groove (4131).

10. The low-loss amorphous alloy transformer of claim 9, wherein, The elastic clamping piece (28) comprises a compression spring (281) and an arc-shaped protrusion (282), and a placing groove (271) is formed on the traction strip (27) for placing the compression spring (281) and the arc-shaped protrusion (282); one side of the arc-shaped protrusion (282) is pressed by the compression spring (281), so that a part of the arc-shaped protrusion (282) protrudes from the opening of the placing groove (271); the protruding part of the arc-shaped protrusion (282) has an arc surface, and the corresponding arc length of the arc surface is a minor arc.

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