Gas-insulated switchgear and wind power generation equipment

Abstract

This application relates to a gas-insulated switchgear and a wind power generation device. The gas-insulated switchgear includes: a cabinet; a housing unit housed within the cabinet; and a voltage transformer unit housed within the cabinet and disposed on the top side of the housing unit. The voltage transformer unit includes a voltage transformer and a reinforcing component. The top side of the housing unit has a mounting position, the reinforcing component is disposed at the mounting position, and the voltage transformer is connected to the side of the reinforcing component opposite to the top side of the housing unit. A wind power generation device includes the aforementioned gas-insulated switchgear. In the aforementioned gas-insulated switchgear and wind power generation device, the voltage transformer is fixed to the top side of the housing unit by the reinforcing component, eliminating the need for a separate mounting hole on the top side of the housing unit to fix the voltage transformer, thus reducing the probability of the housing unit tearing and leaking due to openings; it achieves the installation of the voltage transformer without affecting the sealing performance of the housing unit.

Description

Technical Field

[0001] This application relates to the field of gas-insulated switchgear technology, and in particular to a gas-insulated switchgear and wind power generation equipment. Background Technology

[0002] With the development of wind power technology, offshore wind power has become an important component of the renewable energy sector. Offshore wind power equipment typically includes a gas-filled sheath, which encloses key components such as circuit breakers, disconnectors, grounding switches, busbars, instrument transformers, surge arresters, current transformers, and terminal configurations within a grounded metal casing. This sheath is filled with pressurized gas as both insulation and arc-extinguishing medium. It offers advantages such as small size, minimal footprint, immunity to external environmental influences, safe and reliable operation, simple maintenance, and long maintenance cycles.

[0003] In existing gas-insulated switchgear, voltage transformers need to be installed on the gas box. Most of these switchgear require mounting holes to be made in the gas box to fix the voltage transformers. Under the conditions of high vibration frequency, large amplitude and unstable direction at sea, stress is very likely to be transferred to the opening and thus tear the gas box, resulting in the gas box's airtightness. Utility Model Content

[0004] Therefore, it is necessary to provide a gas-insulated switchgear and wind power generation equipment to address the problem that the installation of voltage transformers in existing gas-insulated switchgear affects the airtightness of the gas box.

[0005] A gas-insulated switchgear includes: a cabinet; a housing unit housed within the cabinet; and a voltage transformer unit housed within the cabinet and disposed on the top side of the housing unit. The voltage transformer unit includes a voltage transformer and a reinforcing assembly. The top side of the housing unit has a mounting position, the reinforcing assembly is disposed at the mounting position, and the voltage transformer is connected to the side of the reinforcing assembly opposite to the top side of the housing unit.

[0006] In the aforementioned gas-insulated switchgear, both the enclosure unit and the voltage transformer unit are housed within the cabinet. The voltage transformer is fixed to the top side of the enclosure unit via reinforcing components, eliminating the need for additional mounting holes on the top side of the enclosure unit to fix the voltage transformer. This reduces the probability of the enclosure unit tearing and leaking due to openings. Furthermore, due to the reinforcing components, the voltage transformer does not directly contact the top side of the enclosure unit. Under conditions of high vibration frequency, large amplitude, and unstable direction, the installation of the voltage transformer can be achieved without affecting the sealing performance of the enclosure unit. This does not require additional space and improves structural performance.

[0007] In some embodiments, the reinforcement assembly includes a reinforcement member and a support member. The reinforcement member is disposed on the top side of the enclosure unit, and the support member is disposed on the side of the reinforcement member opposite to the top side of the enclosure unit. The voltage transformer is connected to the support member.

[0008] In some embodiments, the reinforcement is configured to be welded and fixed to the top side of the housing unit.

[0009] In some embodiments, the reinforcing member is configured as a strip-shaped plate structure.

[0010] In some embodiments, the support includes a horizontal plate, a vertical plate, and a side plate. The side plate has a horizontal plate at each end along its height direction, and at least one vertical plate is provided between the two horizontal plates. One of the horizontal plates is connected to the reinforcing member, and the other horizontal plate is connected to the voltage transformer.

[0011] In some embodiments, the reinforcing assembly further includes a connector that protrudes from the reinforcing member, wherein one of the cross plates is fixed to the side of the reinforcing member away from the top side of the housing unit via the connector.

[0012] In some embodiments, the connector is configured as a stud welded to the reinforcement, and one of the cross plates has a first mounting hole for threaded connection with the stud.

[0013] In some embodiments, the voltage transformer unit further includes a fastener, another horizontal plate is provided with a first fixing hole, and the voltage transformer is provided with a second fixing hole; the fastener passes through the first fixing hole and the second fixing hole to lock the other horizontal plate and the voltage transformer.

[0014] In some embodiments, the top side of the housing unit has two mounting positions spaced apart along a first direction, each mounting position having at least one reinforcing member and at least one supporting member, the voltage transformer spanning the top side of all the supporting members, the first direction being the length direction of the voltage transformer.

[0015] In some embodiments, the top side of the housing unit also has a lug extending along the first direction, and each of the supports is provided with a clearance groove for the lug to pass through.

[0016] In some embodiments, the voltage transformer has connecting wires, and the housing unit has through holes for the connecting wires to pass through.

[0017] A wind power generation device includes the aforementioned gas-insulated switchgear.

[0018] In the aforementioned wind power generation equipment, the gas-insulated switchgear enclosure unit and voltage transformer unit are both housed within a cabinet. The voltage transformer is fixed to the top side of the enclosure unit via reinforcing components, eliminating the need for additional mounting holes on the top side of the enclosure unit to fix the voltage transformer. This reduces the probability of the enclosure unit tearing and leaking due to openings. Furthermore, due to the reinforcing components, the voltage transformer does not directly contact the top side of the enclosure unit. Under conditions of high vibration frequency, large amplitude, and unstable direction, the installation of the voltage transformer can be achieved without affecting the sealing performance of the enclosure unit. This does not require additional space and is beneficial for improving structural performance. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the combination of the enclosure unit and the voltage transformer in some embodiments of this application.

[0020] Figure 2 for Figure 1 The diagram shows the separation of the enclosure unit and the voltage transformer.

[0021] Figure 3 for Figure 1 The diagram shows the enclosure unit and reinforcement components.

[0022] Figure 4 for Figure 1 A schematic diagram of the support component in the reinforcement assembly shown.

[0023] Figure label:

[0024] 200, Enclosure unit; 201, Mounting position; 202, Lifting lug; 203, Wiring hole; 300, Voltage transformer unit; 310, Voltage transformer; 311, Second fixing hole; 320, Reinforcing assembly; 321, Reinforcing member; 322, Support member; 322a, Horizontal plate; 322b, Vertical plate; 322c, Side plate; 322d, First mounting hole; 322e, First fixing hole; 322f, Clearance groove; 323, Connector. Detailed Implementation

[0025] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0026] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0027] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0028] In this application, unless otherwise expressly specified and limited, the terms "initial," "connected," "linked," and "fixed," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0029] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0030] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0031] Please refer to Figures 1 to 3 In one embodiment, the gas-insulated switchgear includes a cabinet, a housing unit 200, and a voltage transformer unit 300. The housing unit 200 is housed within the cabinet, and the voltage transformer unit 300 is housed within the cabinet and disposed on the top side of the housing unit 200. The voltage transformer unit 300 includes a voltage transformer 310 and a reinforcing component 320. The top side of the housing unit 200 has a mounting position 201, and the reinforcing component 320 is disposed at the mounting position 201. The voltage transformer 310 is connected to the side of the reinforcing component 320 away from the top side of the housing unit 200.

[0032] It should be noted that gas-insulated switchgear is used in offshore wind power generation equipment to enclose each high-voltage device in a cabinet filled with insulating gas, thereby electrically isolating the high-voltage devices from the external environment. Optionally, the gas-insulated switchgear is a gas-filled cabinet.

[0033] In the aforementioned gas-insulated switchgear, both the enclosure unit 200 and the voltage transformer unit 300 are housed within the cabinet. The voltage transformer 310 is fixed to the top side of the enclosure unit 200 via a reinforcing component 320. This eliminates the need for additional mounting holes on the top side of the enclosure unit 200 to fix the voltage transformer 310, reducing the probability of the enclosure unit 200 tearing and leaking due to openings. Furthermore, due to the reinforcing component 320, the voltage transformer 310 does not directly contact the top side of the enclosure unit 200. Under conditions of high vibration frequency, large amplitude, and unstable direction, the installation of the voltage transformer 310 can be achieved without affecting the sealing performance of the enclosure unit 200. This does not require additional space and improves structural performance.

[0034] In the embodiments of this application, the housing unit 200 is housed within a cabinet. The cabinet is a structure with a receiving cavity, which can be a cuboid, cylindrical, or other shaped cavity, and is not specifically limited herein. The housing unit 200 can be a single housing or at least two housings joined together. The housing can be an air box or other types.

[0035] In the embodiments of this application, the reinforcing component 320 is disposed at the mounting position 201, that is, the reinforcing component 320 is disposed on the top side of the housing unit 200. The reinforcing component 320 and the housing unit 200 can be connected in various ways, for example, the reinforcing component 320 can be fixed by welding or other methods. Optionally, the reinforcing component 320 and the housing unit 200 are made of the same material, for example, both are made of stainless steel.

[0036] In the embodiments of this application, the voltage transformer 310 is connected to the side of the reinforcement component 320 away from the top of the housing unit 200. The voltage transformer 310 and the reinforcement component 320 can be connected in various ways. For example, the voltage transformer 310 and the reinforcement component 320 can be detachably connected by fasteners such as screws, or they can be non-detachably connected by welding or other methods.

[0037] For details, please refer to Figure 3 and Figure 4 The reinforcement component 320 includes a reinforcement member 321 and a support member 322. The reinforcement member 321 is located on the top side of the enclosure unit 200, and the support member 322 is located on the side of the reinforcement member 321 away from the top side of the enclosure unit 200. The voltage transformer 310 is connected to the support member 322.

[0038] The beneficial effects here are: the reinforcing member 321 is used to connect with the top side of the enclosure unit 200, and the support member 322 is located above the reinforcing member 321 and is used to support the voltage transformer 310. This allows the voltage transformer 310 to be smoothly fixed in the mounting position 201, and effectively avoids direct contact between the voltage transformer 310 and the top side of the enclosure unit 200. This will not occupy more space and will help improve the structural performance.

[0039] In the embodiments of this application, the reinforcing member 321 is disposed on the top side of the housing unit 200. The reinforcing member 321 may completely cover the top side of the housing unit 200 or partially cover the top side of the housing unit 200. The reinforcing member 321 and the top side of the housing unit 200 can be connected in various ways, for example, the reinforcing member 321 can be fixed by welding or other methods. The number of reinforcing members 321 is not limited to one, that is, the number of reinforcing members 321 can be at least two.

[0040] In the embodiments of this application, the support member 322 is disposed on the side of the reinforcing member 321 opposite to the top side of the housing unit 200. The support member 322 can adopt various structural forms, for example, the support member 322 is an integral block structure, or a structure composed of multiple plates. The support member 322 and the reinforcing member 321 can be connected in various ways, for example, the support member 322 and the reinforcing member 321 are fixed by welding or other means.

[0041] In the embodiments of this application, the voltage transformer 310 is connected to the support member 322. The support member 322 and the reinforcement member 321 can be connected in various ways. For example, the support member 322 and the reinforcement member 321 can be detachably connected by fasteners such as screws.

[0042] For a specific embodiment, please refer to Figure 3 and Figure 4 The reinforcing member 321 is constructed to be welded and fixed to the top side of the housing unit 200.

[0043] The beneficial effect here is that the reinforcement 321 is welded and fixed to the top side of the housing unit 200, which can enhance the connection stability between the reinforcement 321 and the housing unit 200, and facilitate the subsequent fixing of other components to the reinforcement 321.

[0044] In the embodiments of this application, the reinforcing member 321 is welded and fixed to the top side of the box unit 200. The welding can be laser welding, ultrasonic welding, etc., and the type of welding is not specifically limited here.

[0045] For a specific embodiment, please refer to Figure 3 and Figure 4 The reinforcing member 321 is constructed as a strip-shaped plate structure.

[0046] The beneficial effect here is that the reinforcing member 321 can fit better against the top side of the housing unit 200, and can better reinforce the top side of the housing unit 200, which is conducive to fixing other components on the reinforcing member 321 in the future.

[0047] In the embodiments of this application, the reinforcing member 321 is a strip-shaped plate structure, which includes straight strips, curved strips or other irregular shapes, as long as the reinforcing member 321 can at least cover the mounting position 201 on the top side of the housing unit 200.

[0048] Please refer to Figure 3 and Figure 4 The support member 322 includes a horizontal plate 322a, a vertical plate 322b and a side plate 322c. A horizontal plate 322a is provided at each end of the side plate 322c along its own height direction, and at least one vertical plate 322b is provided between the two horizontal plates 322a. One of the horizontal plates 322a is connected to the reinforcing member 321, and the other horizontal plate 322a is connected to the voltage transformer 310.

[0049] It should be noted that the side panel 322c itself is in the height direction, that is... Figure 4 The Z direction is shown.

[0050] The beneficial effect here is that the two ends of the support member 322 along its own height direction are connected to the reinforcing member 321 and the voltage transformer 310 respectively, which makes the overall structure of the gas-insulated switchgear compact and helps to improve space utilization.

[0051] In the embodiments of this application, the support member 322 includes a horizontal plate 322a, a vertical plate 322b, and a side plate 322c. The horizontal plate 322a, the vertical plate 322b, and the side plate 322c can be an integral structure with good integrity and high mechanical strength. For example, the horizontal plate 322a, the vertical plate 322b, and the side plate 322c can be integrally formed by casting or other methods. The horizontal plate 322a, the vertical plate 322b, and the side plate 322c can also be a separate structure. For example, the horizontal plate 322a, the vertical plate 322b, and the side plate 322c can be fixed by welding, snap-fitting, or other methods.

[0052] In the embodiments of this application, a horizontal plate 322a is provided at each end of the side plate 322c along its height direction, and at least one vertical plate 322b is provided between the two horizontal plates 322a. The horizontal plates 322a and the side plate 322c are perpendicularly connected, and the horizontal plates 322a and the vertical plates 322b are also perpendicularly connected. The horizontal plates 322a, the vertical plates 322b, and the side plate 322c are all plate-shaped structures, including rectangular plates, circular plates, or other shapes.

[0053] For details, please refer to Figure 2 and Figure 3 The reinforcing component 320 also includes a connector 323, which protrudes from the reinforcing component 321. One of the horizontal plates 322a is fixed to the side of the reinforcing component 321 away from the top side of the housing unit 200 by the connector 323.

[0054] The beneficial effect here is that one of the horizontal plates 322a is fixed to the reinforcing member 321 by the connector 323, that is, the support member 322 is installed on the reinforcing member 321 by the connector 323. There is no need to set a separate mounting hole for fixing the support member 322 on the top side of the housing unit 200, which reduces the probability of the housing unit 200 tearing and leaking air due to the opening.

[0055] In the embodiments of this application, the connector 323 protrudes from the reinforcing member 321. The connector 323 and the reinforcing member 321 can be connected in various ways, such as by welding. The number of connectors 323 is not limited to one. When there are at least two connectors 323, each connector 323 can be positioned at different locations on the reinforcing member 321 to enhance the connection stability at different locations.

[0056] In an embodiment of this application, one of the horizontal plates 322a is fixed to the side of the reinforcing member 321 away from the top side of the housing unit 200 by a connector 323. The horizontal plate 322a and the reinforcing member 321 can be connected in a variety of ways, such as by welding, snap-fitting or other methods.

[0057] For more specific details, please refer to Figure 2 and Figure 3 The connector 323 is configured as a stud welded to the reinforcing member 321, and one of the cross plates 322a is provided with a first mounting hole 322d for threaded connection with the stud.

[0058] The beneficial effect here is that the threaded connection between the stud and the first mounting hole 322d enables a stable connection between the support member 322 and the reinforcing member 321, which helps to improve the connection stability of the structure.

[0059] In the embodiments of this application, the first mounting hole 322d is a circular screw hole, and the number of connectors 323 is not limited to one. When the number of connectors 323 is at least two, the number of first mounting holes 322d is also at least two, and the first mounting holes 322d and connectors 323 are set in a one-to-one correspondence.

[0060] Further, please refer to Figure 2 and Figure 3 The voltage transformer unit 300 also includes fasteners. Another horizontal plate 322a is provided with a first fixing hole 322e, and the voltage transformer 310 is provided with a second fixing hole 311. The fasteners pass through the first fixing hole 322e and the second fixing hole 311 to lock the other horizontal plate 322a and the voltage transformer 310.

[0061] The beneficial effect here is that by fastening another horizontal plate 322a and the fixing hole of voltage transformer 310, a stable connection between support member 322 and voltage transformer 310 can be achieved, which helps to improve the connection stability of the structure.

[0062] In the embodiments of this application, the fastener is a rivet nut, and the first fixing hole 322e and the second fixing hole 311 are both hexagonal holes. After the fastener passes through the first fixing hole 322e and the second fixing hole 311, it locks the other horizontal plate 322a and the voltage transformer 310 by riveting.

[0063] In the embodiments of this application, the number of fasteners is not limited to one. When the number of fasteners is at least two, the number of first fixing holes 322e and second fixing holes 311 is also at least two, and the first fixing holes 322e and second fixing holes 311 are provided in a one-to-one correspondence with the fasteners.

[0064] Please refer to Figure 2and Figure 3 The top side of the housing unit 200 has two mounting positions 201 spaced apart along a first direction. Each mounting position 201 is provided with at least one reinforcing member 321 and at least one supporting member 322. The voltage transformer 310 spans the top side of all the supporting members 322. The first direction is the length direction of the voltage transformer 310.

[0065] It should be noted that the first direction is Figure 2 and Figure 3 The X direction shown is the length direction of the voltage transformer 310.

[0066] The beneficial effect here is that when the voltage transformer 310 is long, it can be installed smoothly on the top side of the enclosure unit 200 without the need to provide a separate mounting hole for fixing the voltage transformer 310 on the top side of the enclosure unit 200, thus reducing the probability of the enclosure unit 200 tearing and leaking due to the opening.

[0067] In the embodiments of this application, each mounting position 201 is provided with at least one reinforcing member 321 and at least one supporting member 322. The size and shape of all reinforcing members 321 can be the same or different, and the size and shape of all supporting members 322 can be the same or different. The arrangement of reinforcing members 321 and supporting members 322 can be flexibly adjusted according to the actual situation.

[0068] In the embodiments of this application, the voltage transformer 310 spans the top side of all the support members 322. The voltage transformer 310 and all the support members 322 can be connected in various ways, for example, the horizontal plate 322a and the reinforcing member 321 are fixed by welding, screwing or other methods.

[0069] Further, please refer to Figure 3 and Figure 4 The top side of the housing unit 200 also has a lifting lug 202 extending along the first direction, and each support member 322 is provided with a clearance groove 322f for the lifting lug 202 to pass through.

[0070] The beneficial effect here is that by providing clearance slots 322f for the lifting lugs 202 to pass through in each support 322, the voltage transformer 310 can be installed without obstructing the lifting lugs 202 on the top side of the enclosure unit 200.

[0071] In the embodiments of this application, the top side of the housing unit 200 also has a lifting lug 202 extending along the first direction. The lifting lug 202 can facilitate the hoisting, transportation or transfer of the housing unit 200. The lifting lug 202 can take various structural forms. For example, the lifting lug 202 can be a structure integrally formed into the housing unit 200, and the lifting lug 202 is made of stainless steel.

[0072] In the embodiments of this application, the clearance groove 322f is a clearance space through which the lifting lug 202 can pass, and the clearance groove 322f can be square, circular or other shapes.

[0073] Furthermore, please refer to Figure 2 The voltage transformer 310 has connecting wires, and the housing unit 200 is provided with a wire passage hole 203 for the connecting wires to pass through.

[0074] The beneficial effect here is that by providing a wire hole 203 for the connecting wire to pass through in the housing unit 200, it is convenient to organize and store the wiring harness of the voltage transformer 310.

[0075] In the embodiments of this application, the wire hole 203 can be a round hole, a square hole or other shapes, and the number of wire holes 203 is not limited to one. The shape and number of wire holes 203 are not limited here.

[0076] Please refer to Figure 1 One embodiment of the wind power generation equipment includes the gas-insulated switch device described above.

[0077] It should be noted that the aforementioned wind power generation equipment also includes blades, generator sets, and other components, which can be electrically connected to the components within the aforementioned gas-insulated switchgear.

[0078] In the aforementioned wind power generation equipment, the gas-insulated switchgear enclosure unit 200 and voltage transformer unit 300 are both housed within the cabinet. The voltage transformer 310 is fixed to the top side of the enclosure unit 200 via a reinforcing component 320. This eliminates the need for additional mounting holes on the top side of the enclosure unit 200 to fix the voltage transformer 310, reducing the probability of the enclosure unit 200 tearing and leaking due to openings. Furthermore, due to the reinforcing component 320, the voltage transformer 310 does not directly contact the top side of the enclosure unit 200. Under conditions of high vibration frequency, large amplitude, and unstable direction, the installation of the voltage transformer 310 can be achieved without affecting the sealing performance of the enclosure unit 200, without occupying additional space and improving structural performance.

[0079] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0080] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A gas-insulated switchgear, characterized in that, include: Cabinet; The enclosure unit is housed within the cabinet. A voltage transformer unit is housed within the cabinet and located on the top side of the cabinet unit; The voltage transformer unit includes a voltage transformer and a reinforcement component. The top side of the enclosure unit has a mounting position, the reinforcement component is located at the mounting position, and the voltage transformer is connected to the side of the reinforcement component away from the top side of the enclosure unit.

2. The gas-insulated switchgear according to claim 1, characterized in that, The reinforcement assembly includes a reinforcement member and a support member. The reinforcement member is located on the top side of the enclosure unit, and the support member is located on the side of the reinforcement member away from the top side of the enclosure unit. The voltage transformer is connected to the support member.

3. The gas-insulated switchgear according to claim 2, characterized in that, The reinforcing member is constructed to be welded and fixed to the top side of the housing unit.

4. The gas-insulated switchgear according to claim 2, characterized in that, The reinforcing member is constructed as a strip-shaped plate structure.

5. The gas-insulated switchgear according to claim 2, characterized in that, The support member includes a horizontal plate, a vertical plate and a side plate. The side plate has a horizontal plate at each end along its height direction, and at least one vertical plate is provided between the two horizontal plates. One of the horizontal plates is connected to the reinforcing member, and the other horizontal plate is connected to the voltage transformer.

6. The gas-insulated switchgear according to claim 5, characterized in that, The reinforcing component also includes a connector, which protrudes from the reinforcing component, and one of the cross plates is fixed to the side of the reinforcing component away from the top side of the housing unit by the connector.

7. The gas insulated switchgear of claim 6, wherein, The connector is configured as a stud welded to the reinforcing member, and one of the cross plates has a first mounting hole for threaded connection with the stud.

8. The gas-insulated switchgear according to claim 5, characterized in that, The voltage transformer unit also includes fasteners, and another horizontal plate is provided with a first fixing hole, and the voltage transformer is provided with a second fixing hole; the fastener passes through the first fixing hole and the second fixing hole to lock the other horizontal plate and the voltage transformer.

9. The gas-insulated switchgear according to claim 2, characterized in that, The top side of the enclosure unit has two mounting positions spaced apart along a first direction. Each mounting position is provided with at least one reinforcing member and at least one supporting member. The voltage transformer spans the top side of all the supporting members. The first direction is the length direction of the voltage transformer.

10. The gas-insulated switchgear according to claim 9, characterized in that, The top side of the housing unit also has a lifting lug extending along the first direction, and each of the supporting members is provided with a clearance groove for the lifting lug to pass through.

11. The gas-insulated switchgear according to claim 1, characterized in that, The voltage transformer has connecting wires, and the housing unit is provided with wire-passing holes for the connecting wires to pass through.

12. A wind power generation device, characterized in that, Including the gas-insulated switchgear as described in any one of claims 1-11.

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