Monitoring device for severe vibration of transformer

Abstract

The utility model provides a severe vibration monitoring device for a transformer. The severe vibration monitoring device comprises a box body, a first door body and a second door body, the box body is provided with a cavity used for containing monitoring equipment. A first opening and a second opening which are communicated with the cavity are respectively formed in two opposite side plates of the box body; a first door body and a second door body are hinged to the first opening and the second opening correspondingly so that the corresponding opening can be closed or opened. According to the utility model, the first door body and the second door body which are oppositely arranged are hinged on the box body, so that the corresponding opening can be easily opened when needed, the front surface or the back surface of monitoring equipment can be directly contacted, measurement, wiring or maintenance operation can be carried out, the convenience of maintenance is improved, and the risks of equipment damage and personnel injury caused by improper operation are also reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of electrical equipment monitoring, in particular to a transformer vibration severe monitoring device. Background Art

[0002] As a key device in the power grid, the operating state of a transformer directly affects the stability and safety of the power grid. Especially when the transformer is subjected to abnormal conditions such as short-circuit impact and DC bias magnetic, the mechanical state of the winding may be affected, which may further lead to serious failures. Therefore, it is necessary to carry out severe monitoring of the transformer for several weeks to several months.

[0003] Traditional transformer vibration testing equipment is mainly divided into two categories: movable on-site detection type and fixed-installed online monitoring type. However, both of these two types of equipment have limitations when dealing with transformers that require severe monitoring, and are not applicable to transformers in the power grid that need to carry out severe monitoring and do not have fixed-installed online monitoring type transformer vibration testing equipment. The movable on-site detection type transformer vibration testing equipment, although having portability and flexibility, is limited by the battery life and is only suitable for short-term detection requirements not exceeding 24 hours. Power off easily leads to data interruption and incompleteness, and it cannot support long-term severe monitoring for several weeks to several months. The fixed-installed online monitoring type equipment can achieve long-term monitoring, but it requires a pre-reserved installation position on the transformer and is not applicable to old or temporary transformers without pre-installing such equipment.

[0004] For example, the application number is CN201811293884.9, which discloses a cabinet portable dual-purpose transformer intelligent component monitoring device, aiming to break through the above limitations. However, there are still the following technical problems: there are still deficiencies in the structural design. Only a single door is set on the front of the device, but when it comes to the maintenance operation of the back of the internal equipment, the operator can only reach into the narrow space to operate, with low efficiency. If the operation is improper, it may cause equipment damage or personal injury, and there are safety hazards.

[0005] In view of this, the present utility model is specifically proposed. Content of the Utility Model

[0006] The purpose of the present utility model is to provide a transformer vibration severe monitoring device to solve the technical problem in the prior art that only a single door is set on the front of the device, but when it comes to the maintenance operation of the back of the internal equipment, the operator can only reach into the narrow space to operate, with low efficiency. If the operation is improper, it may cause equipment damage or personal injury, and there are safety hazards. The many technical effects that can be produced by the preferred technical solution among the many technical solutions provided by the present utility model are described in detail below.

[0007] To achieve the above purpose, the present utility model provides the following technical solutions:

[0008] A transformer vibration severe monitoring device provided by the utility model includes:

[0009] A box body, which has a cavity for accommodating monitoring equipment;

[0010] A first door body and a second door body. First openings and second openings communicating with the cavity are respectively formed on opposite side plates of the box body; the first door body and the second door body are respectively hinged at the first opening and the second opening to close or open the corresponding openings.

[0011] Preferably, the monitoring equipment includes an IED host, a measurement sensor, a PC, and a power switch. The cavity is divided into a first accommodation cavity and a second accommodation cavity by a partition structure; the IED host is arranged in the first accommodation cavity; the measurement sensor is arranged in the second accommodation cavity for monitoring the state parameters of the transformer and is electrically connected to the IED host through a cable; the PC is arranged in the second accommodation cavity and is electrically connected to the IED host through a network cable; the power switch is arranged in the first accommodation cavity and is connected to an external power supply through a power cord for supplying electrical energy to the IED host, the measurement sensor, and the PC.

[0012] Preferably, it further includes a first fixing plate and a second fixing plate. The first fixing plate is oppositely arranged at the first opening, and the second fixing plate is oppositely arranged at the second opening. The partition structure is respectively connected to the first fixing plate and the second fixing plate. An accommodation groove is arranged on the partition structure for placing the IED host; the back plate of the IED host is detachably connected to the second fixing plate.

[0013] Preferably, an installation plate is arranged at the upper part of the first accommodation cavity for installing the power switch; the installation plate is connected to the first fixing plate.

[0014] Preferably, avoiding recesses are arranged on the partition structure and the installation plate.

[0015] Preferably, it further includes a sealing structure. The sealing structure includes a sealing mounting seat and a sealing member. The sealing mounting seat is respectively arranged around the circumferences of the first opening and the second opening. The sealing member is arranged on the sealing mounting seat and protrudes towards the first door body and the second door body so as to form a seal between the first door body and the second door body and the box body.

[0016] Preferably, wire routing holes are formed on at least one closed side plate of the box body and the bottom plate of the box body.

[0017] Preferably, it further includes a rain and snow protection structure, which is arranged on the top of the box body. The cross-section of the top surface of the rain and snow protection structure is in an inverted V shape, and its extending part can cover the upper parts of the two open side plates.

[0018] Preferably, it further includes a handle structure, which is rotatably arranged on the two closed side plates respectively.

[0019] Preferably, it further includes feet. The feet include a vertical part and a horizontal part arranged in sequence from top to bottom. The vertical part is connected to the bottom of the box body; the horizontal part is connected to the ground and is provided with a foot connection hole.

[0020] Preferably, it further includes a grounding structure. A metal point is arranged on the abutting surface of any one of the horizontal parts. One end of the grounding structure is connected to the box body, and the other end passes through the wire passing hole and is connected to the metal point.

[0021] The preferred technical solution of the present utility model can at least further produce the following technical effects:

[0022] The present utility model effectively avoids the technical problems in the prior art that there is only a single door body arranged on the front of the device, but for the maintenance operation of the back of the internal equipment, it can only rely on the operator to reach into a narrow space for operation, with low efficiency. If the operation is improper, it may cause equipment damage or personal injury, resulting in potential safety hazards. The present utility model provides a transformer vibration intensive monitoring device, including a box body, a first door body and a second door body. The box body has a cavity for accommodating monitoring equipment. First openings and second openings communicating with the cavity are respectively arranged on the opposite side plates of the box body; a first door body and a second door body are respectively hinged at the first opening and the second opening to close or open the corresponding openings. By hinging the first door body and the second door body arranged oppositely on the box body, the present utility model enables the corresponding openings to be easily opened when needed, directly contacting the front or back of the monitoring equipment for measurement, wiring or maintenance operations, improving the convenience of maintenance and reducing the risks of equipment damage and personal injury caused by improper operation. Description of the Drawings

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0024] Figure 1 It is a schematic structural diagram of a transformer vibration intensive monitoring device provided by the present utility model;

[0025] Figure 2 It is another structural schematic diagram of a transformer vibration severe monitoring device provided by the present utility model;

[0026] Figure 3 It is a structural schematic diagram of the bottom plate of the box body of a transformer vibration severe monitoring device provided by the present utility model;

[0027] Figure 4 It is a structural schematic diagram of the first door body of a transformer vibration severe monitoring device provided by the present utility model in an open state;

[0028] Figure 5 It is a structural schematic diagram of the second door body of a transformer vibration severe monitoring device provided by the present utility model in an open state.

[0029] In the figure:

[0030] 1. Box body; 101. First accommodation cavity; 102. Second accommodation cavity; 2. First door body; 3. Second door body; 4. IED host; 401. Back plate; 5. Power switch; 6. Storage bag; 7. Partition structure; 701. First avoidance recess; 8. Mounting plate; 801. Second avoidance recess; 9. First fixing plate; 901. First fixing hole; 10. Second fixing plate; 1001. Second fixing hole; 11. First wire routing hole; 12. Second wire routing hole; 13. Handle structure; 1301. Hinge seat; 1302. Metal grip; 14. Support feet; 1401. Vertical part; 1402. Horizontal part; 14021. Metal point; 14022. Support foot connection hole; 15. Copper wire; 16. Buffer pad; 17. Sealed mounting seat; 18. Sealing member; 19. Rain and snow protection structure. Specific embodiments

[0031] To make the objectives, technical solutions and advantages of the present utility model clearer, the technical solutions of the present utility model will be described in detail below. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. All other implementation manners obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts fall within the scope protected by the present utility model.

[0032] As Figures 1 - 5 shown, the present utility model provides a transformer vibration severe monitoring device, including a box body 1, a first door body 2 and a second door body 3. The box body 1 has a cavity for accommodating monitoring equipment. First openings and second openings communicating with the cavity are respectively formed on opposite side plates of the box body 1. A first door body 2 and a second door body 3 are respectively hinged at the first opening and the second opening to close or open the corresponding openings.

[0033] Furthermore, the box body 1 is made of metal and has high structural strength.

[0034] Through the synergistic effect of the first door body 2 and the second door body 3, the operator can access the inside of the box body 1 from two directions. The first door body 2 is used to open during measurement and directly contacts the front of the monitoring device, facilitating wiring and measurement operations. The second door body 3 is used to open during maintenance and can directly expose the back of the monitoring device, enabling intuitive and easy maintenance operations and improving the convenience and efficiency of maintenance. Among them, the first door body 2 and the second door body 3 adopt lockable door bodies in the prior art, which will not be elaborated here.

[0035] As an optional implementation manner, the monitoring device includes an IED host 4, a measurement sensor, a PC, and a power switch 5. The cavity is separated by a partition structure 7 to form a first accommodation cavity 101 and a second accommodation cavity 102. The IED host 4 is arranged in the first accommodation cavity 101. The measurement sensor is arranged in the second accommodation cavity 102, used to monitor the state parameters of the transformer and is electrically connected to the IED host 4. The PC is arranged in the second accommodation cavity 102 and is electrically connected to the IED host 4. The power switch 5 is arranged in the first accommodation cavity 101 and is connected to an external power source to provide electrical energy for the IED host 4, the measurement sensor, and the PC.

[0036] The cavity of the box body 1 is separated into a first accommodation cavity 101 and a second accommodation cavity 102, which are respectively used to place the IED host 4, the measurement sensor, the PC, and the power switch 5, realizing a modular layout and facilitating subsequent installation, debugging, and maintenance work.

[0037] When not in use, the PC and the measurement sensor are stored in a storage bag 6, and the storage bag 6 is placed in the second accommodation cavity 102. Among them, the measurement sensor adopts a magnetic vibration sensor, whose measurement end can be conveniently and quickly adsorbed on the surface of the transformer oil tank, and the other end is connected to the IED host 4 through a cable to collect vibration signals in real time and transmit the signals to the IED host 4 for processing. The IED host 4 performs feature analysis on the vibration signals to obtain an evaluation result of the transformer operation state. The PC is responsible for configuring the parameters of the monitoring software and visualizing the evaluation results transmitted by the IED host 4 to generate intuitive monitoring charts.

[0038] Adopting an external power supply method, connecting to an external power source through the power switch 5 to provide continuous and stable electrical energy for the IED host 4, the measurement sensor, and the PC, solving the problem of limited battery life in the prior art and realizing long-term intensive monitoring.

[0039] This utility model does not require pre-reserving an installation position on the transformer. It only needs to move the device within a range of 1.5m - 2m from the transformer to be measured. The power switch 5 provides electrical energy for the IED host 4, the measurement sensor, and the PC. The magnetic adsorption vibration sensor is used to measure the vibration of the transformer and transmit it to the IED host 4. The IED host 4 analyzes the characteristics of the vibration signal to obtain the evaluation result of the transformer operation state and transmits it to the PC. The PC generates a monitoring chart through its monitoring software to achieve on-line vibration intensive monitoring of the transformer, which is especially suitable for old or temporary transformers without pre-installed monitoring equipment, improving the application range of the device.

[0040] It should be noted that the specific circuit connection relationship among the IED host 4, the measurement sensor, the PC, and the power switch 5 is prior art and will not be elaborated here.

[0041] As an optional implementation manner, as Figures 4 - 5 shown, it further includes a first fixing plate 9 and a second fixing plate 10. The first fixing plate 9 is relatively arranged at the first opening, and the second fixing plate 10 is relatively arranged at the second opening. The partition structure 7 is respectively connected to the first fixing plate 9 and the second fixing plate 10. The partition structure 7 is provided with a receiving groove for placing the IED host 4. The back plate 401 of the IED host 4 is detachably connected to the second fixing plate 10.

[0042] Furthermore, the first fixing plate 9 and the second fixing plate 10 are respectively connected to the inner walls of the two closed side plates of the box body 1. And a plurality of first fixing holes 901 and second fixing holes 1001 are respectively formed on the first fixing plate 9 and the second fixing plate 10, and are arranged in sequence along the vertical direction. The first fixing holes 901 and the second fixing holes 1001 can be set as square holes.

[0043] At the positions corresponding to the first fixing holes 901 and the second fixing holes 1001 on the partition structure 7, first connection holes are formed. Bolts sequentially pass through the first fixing holes 901 and the first connection holes, and the second fixing holes 1001 and the first connection holes to realize the firm connection between the partition structure 7 and the box body 1. In addition, it is also possible to choose to weld the partition structure 7 to the first fixing plate 9 and the second fixing plate 10 to further enhance the stability and reliability of the connection.

[0044] Second connection holes are formed on the back plate 401 of the IED host 4. Bolts sequentially pass through the second fixing holes 1001 and the second connection holes to realize the firm connection between the IED host 4 and the second fixing plate 10. In addition, a buffer pad 16 can also be provided between the IED host 4 and the inner top wall of the box body 1 to provide additional protection.

[0045] In addition, the first fixing hole 901 and the second fixing hole 1001 can also function to fix cables and network cables. The cables and network cables can be bound to the first fixing plate 9 and the second fixing plate 10 through cable ties, ensuring neat and orderly wire routing.

[0046] As an alternative embodiment, as Figures 4 - 5 shown, an installation plate 8 is provided at the upper part of the first accommodation cavity 101 for installing a power switch 5. The installation plate 8 is connected to the first fixing plate 9.

[0047] Furthermore, third connection holes are respectively provided at both ends of the installation plate 8, and the third connection holes are correspondingly arranged with the first fixing holes 901. Bolts sequentially pass through the first fixing holes 901 and the third connection holes to achieve a firm connection between the installation plate 8 and the first fixing plate 9. In addition, the installation plate 8 can also be welded to the first fixing plate 9 and the second fixing plate 10 to further enhance the stability and reliability of the connection.

[0048] The first connection hole, the second connection hole, and the third connection hole can be set as waist-shaped holes.

[0049] As an alternative embodiment, as Figures 4 - 5 shown, avoidance recesses are provided on the partition structure 7 and the installation plate 8.

[0050] Furthermore, the side plates of the partition structure 7 located at both openings are respectively recessed inward to form a first avoidance recess 701, so that when the first door body 2 and the second door body 3 are in the closed state, a certain space is maintained between the front plate and the back plate 401 of the IED host 4 and the corresponding door bodies.

[0051] The side plates of the installation plate 8 located at both openings are respectively recessed inward to form a second avoidance recess 801, and the power switch 5 is installed on the second avoidance recess 801 close to the first opening, so that when the first door body 2 is in the closed state, it will not interfere with the power switch 5, and the power switch 5 will not interfere with the IED host 4 after installation.

[0052] As an alternative embodiment, as Figures 4 - 5 shown, a sealing structure is further included. The sealing structure includes a sealing mounting seat 17 and a sealing member 18. The sealing mounting seat 17 is respectively disposed around the circumferences of the first opening and the second opening, and the sealing member 18 is disposed on the sealing mounting seat 17 and protrudes toward the first door body 2 and the second door body 3, so as to form a seal between the first door body 2 and the second door body 3 and the box body 1.

[0053] With such a setting, when the first door body 2 and the second door body 3 are closed, the sealing member 18 can be in close contact with the first door body 2 and the second door body 3 to form an effective sealing barrier.

[0054] The seal 18 is made of rubber or silica gel, has good elasticity and sealing performance, and can generate sufficient deformation when being extruded by the first door body 2 and the second door body 3 to fill the tiny gaps between the first door body 2 and the second door body 3 and the box body 1, thereby improving the sealing effect.

[0055] As an alternative implementation, as Figures 1 - 3 shown, at least one closed side plate of the box body 1 and the bottom plate of the box body 1 are provided with wire holes 12.

[0056] Furthermore, a plurality of first wire holes 11 on the closed side plate are arranged in sequence in the vertical direction and are located between the first fixing plate 9 and the seal mounting seat 17.

[0057] A plurality of second wire holes 12 on the bottom plate are arranged in sequence in the horizontal direction.

[0058] With such an arrangement, the routing of cables, network cables, and power supply lines can be flexibly arranged according to usage requirements, ensuring that the routing is neat and orderly. Among them, the first wire holes 11 and the second wire holes 12 adopt wire holes with a sealing structure in the prior art, which will not be elaborated here.

[0059] As an alternative implementation, as Figure 1 、 Figure 2 shown, it further includes a rain and snow protection structure 19, which is arranged on the top of the box body 1. The cross-section of the top surface of the rain and snow protection structure 19 is in an inverted V shape, and its extension part can cover the upper parts of the two open side plates.

[0060] The design of the inverted V-shaped top surface of the rain and snow protection structure 19 effectively guides the rain and snow to slide off, avoiding problems such as deformation and collapse of the box body 1 caused by the accumulation of rain and snow on the top of the box body 1.

[0061] The extension parts of the rain and snow protection structure 19 respectively extend to the outside of the two open side plates, reducing to a certain extent the possibility of rainwater seeping into the interior of the box body 1 through the upper parts of the first door body 2 and the second door body 3 in strong wind or oblique rain weather.

[0062] As an alternative implementation, as Figure 1 、 Figure 2 shown, it further includes a handle structure 13, and the handle structure 13 is respectively rotatably arranged on the two closed side plates.

[0063] Furthermore, the handle structure 13 includes a hinge seat 1301 and a metal grip 1302. The hinge seat 1301 is welded to the upper parts of the two closed side plates, and the metal grip 1302 is rotatably connected to the hinge seat 1301, facilitating the cooperation of two people for handling, so that when it is necessary to quickly move or arrange the device, the operation can be completed more efficiently and conveniently.

[0064] As an alternative implementation, as Figure 1 、Figure 2 , Figure 3 As shown in Figure 3 , it further includes a support leg 14. The support leg 14 includes a vertical part 1401 and a horizontal part 1402 which are arranged in sequence from top to bottom. The vertical part 1401 is connected to the bottom of the box body 1. The horizontal part 1402 is connected to the ground and is provided with a support leg connection hole 14022.

[0065] Furthermore, the support legs 14 are arranged at the four corners of the bottom of the box body 1 and are formed by welding three metal plates perpendicular to each other to form a stable support structure, which can effectively support the weight of the equipment.

[0066] The cross-section of the vertical part 1401 is L-shaped, and the opening directions of the vertical sections are opposite to each other, further improving the stability of the support leg 14.

[0067] The design of the support leg connection hole 14022 allows bolts and other fasteners to be selected according to the usage requirements to fix the support leg 14 on the ground, so that the device can be stably installed on various complex ground environments, such as hard ground, metal grounding grid ground, and pebble oil pool, etc.

[0068] As an alternative embodiment, as Figure 1 , Figure 2 , Figure 3 , Figure 4 shown, it further includes a grounding structure. A metal point 14021 is arranged on the abutting surface of any horizontal part 1402. One end of the grounding structure is connected to the box body 1, and the other end passes through the wiring hole 12 and is connected to the metal point 14021.

[0069] Furthermore, the grounding structure includes a copper wire 15. One end of the copper wire 15 is connected to the inner wall of the first door body 2, and the other end passes through the wiring hole 12 and is connected to the metal point 14021, simplifying the grounding operation and improving the grounding reliability.

[0070] Once a leakage occurs in the device, the leakage current on the box body 1 will immediately flow through the copper wire 15 to the metal point 14021 and finally into the ground, which can minimize the harm caused by the leakage to the equipment and the measurement personnel.

[0071] It can be understood that the same or similar parts in the above embodiments can be referred to each other, and the content not detailed in some embodiments can be seen in the same or similar content of other embodiments.

[0072] In the description of the present utility model, it should be noted that unless otherwise specified, the meaning of "a plurality of" is two or more. The orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model. In addition, terms such as "first", "second", "third", etc. are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0073] In the description of the present utility model, it should also be noted that unless otherwise clearly defined and limited, the terms "installed", "connected", "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection. It can be a mechanical connection or an electrical connection. It can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0074] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "example", "specific example" or "one example" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of this application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0075] The above is only the specific implementation manner of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model can easily think of changes or substitutions, which should all be covered by the protection scope of the present utility model. Therefore, the protection scope of the present utility model should be subject to the protection scope of the claims.

Claims

1. A transformer vibration severe monitoring device, characterized in that Comprising: A box body which has a cavity for accommodating monitoring equipment; A first door and a second door, with a first opening and a second opening respectively formed on opposite side plates of the box body and communicating with the cavity; the first door and the second door are respectively hinged at the first opening and the second opening to close or open the corresponding openings.

2. The vibration severe monitoring device for transformer according to claim 1, characterized in that, The monitoring equipment includes an IED host, a measurement sensor, a PC, and a power switch. The cavity is divided by a partition structure into a first accommodation cavity and a second accommodation cavity; the IED host is arranged in the first accommodation cavity; the measurement sensor is arranged in the second accommodation cavity for monitoring the state parameters of a transformer and is electrically connected to the IED host through a cable; the PC is arranged in the second accommodation cavity and is electrically connected to the IED host through a network cable; the power switch is arranged in the first accommodation cavity and is connected to an external power supply through a power cord for supplying electrical energy to the IED host, the measurement sensor, and the PC.

3. The vibration severe monitoring device for transformer according to claim 2, wherein, It further includes a first fixing plate and a second fixing plate. The first fixing plate is oppositely arranged at the first opening, and the second fixing plate is oppositely arranged at the second opening. The partition structure is respectively connected to the first fixing plate and the second fixing plate; The partition structure is provided with a receiving groove for placing the IED host; the back plate of the IED host is detachably connected to the second fixing plate.

4. The vibration severe monitoring device for transformer according to claim 3, characterized in that, An installation plate is arranged at the upper part of the first accommodation cavity for installing the power switch; the installation plate is connected to the first fixing plate; the partition structure and the installation plate are provided with avoidance recesses.

5. The vibration critical monitoring device for a transformer according to claim 1, characterized in that, It further includes a sealing structure. The sealing structure includes a sealing mounting seat and a sealing member. The sealing mounting seat is respectively disposed around the circumferences of the first opening and the second opening. The sealing member is arranged on the sealing mounting seat and protrudes towards the first door and the second door to form a seal between the first door and the second door and the box body.

6. The severe vibration monitoring device for transformer according to claim 5, wherein Through holes for wire routing are formed on at least one closed side plate and the bottom plate of the box body.

7. A transformer vibration severe monitoring device according to claim 1, characterized in that, It further includes a rain and snow protection structure. The rain and snow protection structure is arranged on the top of the box body. The cross-section of the top surface of the rain and snow protection structure is in an inverted V shape, and its extending part can cover the upper parts of the two open side plates of the box body.

8. The severe vibration monitoring device for a transformer according to claim 6, wherein It further includes a handle structure which is respectively rotatably arranged on the two closed side plates.

9. The vibration severe monitoring device for transformer according to claim 6, characterized in that, It further includes feet. The feet include a vertical part and a horizontal part arranged in sequence from top to bottom. The vertical part is connected to the bottom of the box body; the horizontal part is connected to the ground and is provided with a foot connection hole.

10. The vibration severe monitoring device for transformer according to claim 9, characterized in that, It further includes a grounding structure. A metal point is arranged on the abutting surface of any one of the horizontal parts. One end of the grounding structure is connected to the box body, and the other end passes through the wire routing hole and is connected to the metal point.

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