Switch cabinet

Abstract

The utility model provides a switch cabinet. The switch cabinet comprises a voltage mutual inductance cabinet; the outgoing line cabinets are electrically connected with the voltage mutual inductance cabinet, the number of the outgoing line cabinets is at least two, the at least two outgoing line cabinets and the voltage mutual inductance cabinet are arranged at intervals in the preset direction, a first preset distance L exists between the voltage mutual inductance cabinet and the outgoing line cabinets, and the first preset distance L exists between every two adjacent outgoing line cabinets; and the multifunctional electric meter is arranged on the outgoing line cabinets, and the multifunctional electric meter is electrically connected with the at least two outgoing line cabinets. According to the utility model, the problem that the mining switch cabinet in the prior art affects the coal mining efficiency is effectively solved.

Description

Technical Field

[0001] This utility model relates to the field of coal mining technology, and more specifically, to a switch cabinet. Background Technology

[0002] Currently, the Haerwusu open-pit coal mine is using a semi-continuous mining process, employing backfill mining. The power supply for large equipment at the mining site is provided by two 35kV overhead lines connected in a T-shape from a 110 / 35kV substation to a 35 / 6.3kV mobile substation. Power then flows through the high-voltage switchgear on each panel to supply power to the main mining equipment underground. As the most upstream electrical equipment in the mine's power supply and distribution system, the high-voltage switchgear is responsible for functions such as power outage and restoration control and relay protection for the main mining equipment underground.

[0003] However, the actual situation in the existing technology is that two or more electrical devices share one switch cabinet (one-in-one-out switch cabinet). If one of the electrical devices fails, the switch cabinet needs to be operated to cut off the power. This will cause other electrical devices to be unable to operate normally. The coal mining work can only resume after the faulty equipment is repaired, which seriously affects the mining efficiency of the coal mine. Utility Model Content

[0004] The main purpose of this utility model is to provide a switch cabinet to solve the problem that existing switch cabinets used in mining can affect the efficiency of coal mining.

[0005] To achieve the above objectives, this utility model provides a switch cabinet, comprising: a voltage transformer cabinet; outgoing line cabinets electrically connected to the voltage transformer cabinet, wherein there are at least two outgoing line cabinets, and the at least two outgoing line cabinets and the voltage transformer cabinets are spaced apart along a preset direction, with a first preset distance L between the voltage transformer cabinets and the outgoing line cabinets, and a first preset distance L between two adjacent outgoing line cabinets; and a multi-function meter installed on the outgoing line cabinets, with the multi-function meter electrically connected to at least two outgoing line cabinets.

[0006] Furthermore, the switchgear also includes: a main cabinet having a mounting cavity; partitions disposed within the mounting cavity, wherein there are multiple partitions spaced apart along a preset direction, wherein in three adjacent partitions, two adjacent partitions and the main cabinet surround each other to form a sub-mounting cavity, the sub-mounting cavity being used for power supply component installation to form a voltage transformer cabinet or outgoing line cabinet; and the other two adjacent partitions are spaced apart by a first preset distance L.

[0007] Furthermore, the electrical components include a disconnecting switch with wireless control functionality. The switch cabinet also includes a wireless control module, which is mounted on the main cabinet and electrically connected to the disconnecting switch. The wireless control module is used to control the disconnecting switch to connect or disconnect.

[0008] Furthermore, the electrical components also include circuit breakers with wireless control capabilities. The wireless control module is also electrically connected to the circuit breaker to control the circuit breaker to connect or disconnect.

[0009] Furthermore, the switchgear also includes a microcomputer-based integrated protection device, which is installed on the main cabinet and electrically connected to the voltage transformer cabinet.

[0010] Furthermore, the switchgear also includes: cable couplers. Cable couplers are installed on both the voltage transformer cabinet and the outgoing line cabinet. The cable couplers installed on the voltage transformer cabinet are used for incoming lines, and the cable couplers installed on the outgoing line cabinet are used for outgoing lines.

[0011] Furthermore, the switch cabinet also includes a remote control device for use with the wireless control module.

[0012] Furthermore, the partition is provided with a first through hole for wiring; and / or, the main cabinet is provided with a second through hole for wiring.

[0013] Furthermore, the first preset distance L satisfies: L≥300mm.

[0014] Furthermore, the multi-function meter is an APM5 series network power meter; and / or, at least a portion of the outer surface of the main cabinet is provided with a buffer layer made of a flexible material.

[0015] The switchgear of this utility model includes a voltage transformer cabinet and an outgoing line cabinet. The outgoing line cabinet is electrically connected to the voltage transformer cabinet, and there are at least two outgoing line cabinets. The at least two outgoing line cabinets and the voltage transformer cabinet are arranged at intervals along a preset direction. There is a first preset distance L between the voltage transformer cabinet and the outgoing line cabinets, and there is a first preset distance L between two adjacent outgoing line cabinets. A multi-function meter is installed on the outgoing line cabinet and is electrically connected to at least two outgoing line cabinets. In this way, the switchgear of this application actually has multiple outgoing line cabinets, that is, it has multiple outgoing lines. The multiple outgoing lines can be electrically connected to and supply power to multiple electrical devices respectively. When a certain electrical device fails, it is only necessary to operate the outgoing line cabinet electrically connected to the failed electrical device to disconnect the power, without affecting the normal operation of other electrical devices. This avoids the problem in the prior art where a single electrical device failure would cause other electrical devices to wait for repair, and thus solves the problem in the prior art that switchgear used in mining would affect the efficiency of coal mining. Meanwhile, existing switchgear for mining farms cannot actually monitor the power consumption of each electrical device. This is because the power output of the outgoing switchgear is actually the total power consumption of multiple electrical devices, which makes it impossible to accurately manage and monitor the power consumption of each device. However, this application can monitor the output power of each outgoing switchgear through a multi-functional meter, thereby monitoring the power consumption of each electrical device and achieving refined management of the power consumption of mining farm equipment. Attached Figure Description

[0016] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings:

[0017] Figure 1 A schematic diagram of the overall structure of an embodiment of the switch cabinet according to the present invention is shown;

[0018] Figure 2 Shows the use of Figure 1 The power supply system layout diagram of the switchgear in the diagram;

[0019] Figure 3 A layout diagram of the power supply system for a conventional mine is shown.

[0020] The above figures include the following reference numerals:

[0021] 1. High-voltage distribution box; 2. Traditional switchgear; 3. New type of switchgear;

[0022] 10. Voltage transformer cabinet; 20. Outgoing line cabinet; 30. Main cabinet; 31. Outer shell; 32. Base plate; 33. Top plate; 34. Inner cabinet; 40. Partition; 50. Cable coupler. Detailed Implementation

[0023] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0024] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0025] In this utility model, unless otherwise stated, directional terms such as "upper" and "lower" are generally used in relation to the direction shown in the accompanying drawings, or in relation to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" are generally used in relation to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0026] To address the problem that existing switchgear used in mining can affect the efficiency of coal mining, this application provides a switchgear.

[0027] like Figures 1 to 3As shown, the switch cabinet includes a voltage transformer cabinet 10 and an outgoing line cabinet 20. The outgoing line cabinet 20 is electrically connected to the voltage transformer cabinet 10. There are at least two outgoing line cabinets 20, and the at least two outgoing line cabinets 20 and the voltage transformer cabinet 10 are arranged at intervals along a preset direction. There is a first preset distance L between the voltage transformer cabinet 10 and the outgoing line cabinet 20, and there is a first preset distance L between two adjacent outgoing line cabinets 20. A multi-function meter is installed on the outgoing line cabinet 20 and is electrically connected to at least two outgoing line cabinets 20.

[0028] Applying the technical solution of this embodiment, the switchgear includes a voltage transformer cabinet 10 and an outgoing line cabinet 20. The outgoing line cabinet 20 is electrically connected to the voltage transformer cabinet 10. There are at least two outgoing line cabinets 20, and the at least two outgoing line cabinets 20 and the voltage transformer cabinet 10 are spaced apart along a preset direction. There is a first preset distance L between the voltage transformer cabinet 10 and the outgoing line cabinet 20, and there is a first preset distance L between two adjacent outgoing line cabinets 20. A multi-function meter is installed on the outgoing line cabinet 20 and electrically connected to at least two outgoing line cabinets 20. In this way, the switchgear in this embodiment actually has multiple outgoing line cabinets 20, that is, it has multiple outgoing terminals. The multiple outgoing terminals can be electrically connected to multiple electrical devices and supply power. When a certain electrical device fails, it is only necessary to operate the outgoing line cabinet 20 electrically connected to the failed electrical device to disconnect the power, without affecting the normal operation of other electrical devices. This avoids the problem in the prior art where a single electrical device failure would cause other electrical devices to wait for repair, and thus solves the problem in the prior art where switchgear used in mining would affect the efficiency of coal mining. Meanwhile, existing switchgear for mining operations cannot actually monitor the power consumption of each piece of equipment. This is because the power output of the outgoing switchgear is actually the total power consumption of multiple pieces of equipment, which makes it impossible to accurately manage and monitor the power consumption of each piece of equipment. However, this embodiment can monitor the output power of each outgoing switchgear 20 through a multi-functional meter, thereby monitoring the power consumption of each piece of equipment and achieving refined management of the power consumption of mining equipment.

[0029] Specifically, the arrangement and structure of the internal electrical components of the voltage transformer cabinet 10 and the outgoing line cabinet 20 will not be described in detail here.

[0030] Specifically, the voltage transformer ratio in voltage transformer cabinet 10 is changed from 6300:220V to 6300:100V, and the current transformer ratio is changed from 500:5A to 600:5A.

[0031] Specifically, the configuration of at least two outgoing line cabinets 20 in the switch cabinet in this embodiment enables the switch cabinet to have a branching function, thereby eliminating the need to install a high-voltage branch box 1 in the mine circuit configuration.

[0032] Specifically, this embodiment involves making corresponding improvements to the switchgear used in existing mines in order to minimize the improvement costs.

[0033] Specifically, the switch cabinet in this embodiment can also serve as a branch line, that is, multiple lines are already branched out at the switch cabinet to be electrically connected to multiple electrical devices.

[0034] In this embodiment, the multi-function meter is an APM5 series network power meter.

[0035] Specifically, the model of the multi-function meter is APM520-ZW.

[0036] Specifically, the APM520-ZW series multi-functional electricity meter is designed according to IEC international standards. It features full power measurement, power statistics, power quality analysis (including harmonics, interharmonics, and flicker), fault recording (including voltage sag / sag interruption, inrush current, etc.), event recording, and network communication functions. It is mainly used for comprehensive monitoring of power grid quality. The meter is equipped with a feature-rich DI / DO module, AO module, wireless communication module, and leakage current temperature measurement module, which can flexibly realize full power measurement of electrical circuits and monitoring of switch status. The meter has a reserved RG45 gigabit network interface and also has the function of accessing 4G and 5G wireless networks. It can promptly transmit the collected power data and related parameter information back to the background for statistical analysis, thereby realizing single-machine calculation of power consumption and power quality analysis of the main data acquisition equipment (electrical equipment).

[0037] Specifically, taking the Haerwusu open-pit coal mine as an example, all the main mining equipment is electrically driven, with an annual electricity consumption of about 50 million kWh and electricity expenses of nearly 70 million yuan. The existing one-in-one-out switch cabinet cannot monitor the power consumption of each electrical device, nor can it evaluate each electrical device by the power consumption of each device (such as whether the power consumption of the device is too high, whether there is electricity theft or leakage, etc.). Therefore, in this embodiment, the above problems are overcome by improving the number of outgoing cabinets 20 and adding multi-functional meters.

[0038] Optionally, the first preset distance L satisfies: L≥300mm.

[0039] Specifically, the setting of the first preset distance L can ensure that there is a sufficiently large creepage distance between the voltage transformer cabinet 10 and the outgoing cabinet 20, so as to ensure that both the voltage transformer cabinet 10 and the outgoing cabinet 20 have good operational stability.

[0040] In this embodiment, the main cabinet 30 is a cuboid with dimensions of 3100mm (length) × 1400mm (width) × 1800mm (height). Specifically, the above design comprehensively considers the creepage distance requirements, protection level requirements, safety clearance requirements, five-proof linkage requirements, and temperature change requirements of the switchgear to ensure that the switchgear has sufficiently high operational stability.

[0041] like Figure 1 As shown, the switchgear also includes: a main cabinet 30 with a mounting cavity; partitions 40 disposed within the mounting cavity, wherein there are multiple partitions 40 spaced apart along a preset direction; in three adjacent partitions 40, two adjacent partitions 40 and the main cabinet 30 surround each other to form a sub-mounting cavity, which is used for installing electrical components to form a voltage transformer cabinet 10 or an outgoing line cabinet 20; and there is a first preset distance L between the other two adjacent partitions 40. Thus, the above arrangement effectively makes the voltage transformer cabinet 10 and the outgoing line cabinet 20 an integrated structure, meaning that workers can first fully assemble the switchgear and then transport it to the appropriate location for subsequent wiring work, avoiding the impact of the harsh mining environment on the assembly process.

[0042] In this embodiment, an insulating layer is provided on the partition 40. The insulating layer helps to further improve the insulation performance between the voltage transformer cabinet 10 and the outgoing cabinet 20, as well as between two adjacent outgoing cabinets 20, and maintain the operational stability of the switch cabinet.

[0043] In this embodiment, the main cabinet 30 includes an outer shell 31 and a bottom plate 32, a top plate 33, a front panel, and a rear panel disposed within the outer shell 31. The outer shell 31 has a mounting cavity. The bottom plate 32, the top plate 33, the front panel, the rear panel, and the partition 40 surround each other to form an inner cabinet 34. There is a gap between the inner cabinet and the outer shell 31 to mitigate the impact force on the electrical components in the inner cabinet 34 when the main cabinet 30 is hit by falling rocks, thereby further extending the service life of the switch cabinet.

[0044] Specifically, multiple partitions 40 surround the bottom plate 32, top plate 33, front panel, and rear panel of the main cabinet 30 to form multiple sub-installation cavities (i.e., the cabinet that forms the voltage transformer cabinet 10 and the cabinet that forms the outgoing line cabinet 20).

[0045] Optionally, the outer casing 31 and the inner cabinet 34 are welded together by a connecting rod.

[0046] Specifically, the insulation layer can be applied by coating or bonding.

[0047] Specifically, in this embodiment, the base plate of the main cabinet 30 is made of high-strength thickened steel plate to ensure that the main cabinet 30 will not deform during transportation (hoisting).

[0048] Specifically, a buffer layer made of flexible material is provided on at least a portion of the outer surface of the main cabinet 30. This arrangement allows the structure of the main cabinet 30 to be compatible with special mining environments. Considering that the switchgear may be located in the tunneling ramp where there is a possibility of falling rocks, this embodiment also adds a buffer layer to the outer surface of the main cabinet 30 to prevent the internal electrical components from vibrating or even falling off due to the impact of falling rocks, thereby extending the service life of the switchgear.

[0049] In this embodiment, the electrical components include a disconnecting switch with wireless control function. The switch cabinet also includes a wireless control module, which is installed on the main cabinet 30 and electrically connected to the disconnecting switch. The wireless control module is used to control the disconnecting switch to connect or disconnect.

[0050] Specifically, the electrical components also include circuit breakers with wireless control capabilities. The wireless control module is also electrically connected to the circuit breaker to control the circuit breaker to connect or disconnect.

[0051] Thus, the control method of the outgoing cabinet 20 (switch cabinet) in this embodiment is actually remote control control, which greatly reduces the labor intensity of the staff.

[0052] Specifically, the disconnecting switch is an intelligent disconnecting switch.

[0053] Specifically, the circuit breaker is an intelligent vacuum circuit breaker.

[0054] Specifically, due to the harsh working environment in mines, manually operated circuit breakers and disconnect switches often require personnel to be stationed at the corresponding locations. If there are no personnel near the switch cabinet, personnel underground must come out of the mine to perform the corresponding operations, which is time-consuming and labor-intensive. This embodiment enables remote control of the switch cabinet by setting up intelligent disconnect switches and intelligent vacuum circuit breakers, which greatly reduces the labor intensity of the personnel.

[0055] In this embodiment, the switch cabinet also includes a microcomputer integrated protection device, which is installed on the main cabinet 30 and electrically connected to the voltage transformer cabinet 10.

[0056] The microcomputer-based integrated protection device adopts design concepts such as "no adjustment required", "plug and play", and "graphical output interface", which makes it easy for staff to maintain and operate.

[0057] In this embodiment, the main cabinet 30 is also equipped with a display device (liquid crystal display). The display device is electrically connected to the microcomputer integrated protection device to display corresponding information. The microcomputer integrated protection device in this embodiment can realize the following functions: such as electromagnetic compatibility of switchgear, low voltage lockout, two-stage overcurrent protection that can be enabled or disabled, overload protection, negative sequence current protection, zero sequence overcurrent protection, time limit overvoltage, low voltage protection, zero sequence overvoltage protection, CT disconnection monitoring (current imbalance), PT disconnection monitoring, cable detection line protection function, three-phase secondary automatic reclosing, motor start protection, overheat protection, high current lockout protection function, four-way non-electrical quantity protection, temperature tripping, large capacity event recording, SOE recording function, remote signaling function; input and output (note: input and output require the configuration of corresponding general cable couplers).

[0058] In this embodiment, the switchgear also includes cable couplers 50. Cable couplers 50 are installed on both the voltage transformer cabinet 10 and the outgoing line cabinet 20. The cable couplers 50 installed on the voltage transformer cabinet 10 are used for incoming lines, and the cable couplers 50 installed on the outgoing line cabinet 20 are used for outgoing lines. Thus, while enabling the switchgear to handle incoming and outgoing lines (power input and output), the cable couplers 50 can also cooperate with the microcomputer-based integrated protection device to achieve the corresponding functions of the microcomputer-based integrated protection device.

[0059] In this embodiment, the rated operating current of the cable coupler 50 should be above 500A.

[0060] In this embodiment, the switchgear also includes a remote control device for use with the wireless control module. This allows operators to use the remote control device to send signals to the wireless control module, thereby controlling the operating status of the circuit breaker and disconnector.

[0061] It should be noted that the remote control device can also be a smartphone. The actual structure of the remote control device depends on the actual configuration of the purchased smart disconnect switches and smart vacuum circuit breakers. Some smart disconnect switches and smart vacuum circuit breakers are already controlled by a smartphone app.

[0062] Optionally, the partition 40 is provided with a first through hole for wiring; and / or, the main cabinet 30 is provided with a second through hole for wiring. In this way, the above configuration provides a basis for the electrical connection between the voltage transformer cabinet 10 and the outgoing line cabinet 20.

[0063] Specifically, the switchgear in this embodiment adopts advanced, reliable, integrated, and environmentally friendly intelligent equipment. Based on the digitization of all information, the networking of the communication platform, and the standardization of information sharing, it automatically completes functions such as data acquisition, measurement, control, protection, and metering. It supports network-based control and on-site remote control functions, enabling dispatching to perform automated remote signaling, remote measurement, remote control, remote adjustment, and remote viewing of the power system, as well as local remote control operation of circuit breakers and disconnect switches. It also possesses intelligent electrical five-proof functions.

[0064] Specifically, the switch cabinet in this embodiment can be improved based on the original switch cabinet. For example, electrical components such as wiring can be replaced with the original electrical components in the switch cabinet, and only the improved parts need to be replaced and the wiring soldered accordingly.

[0065] like Figure 2 and Figure 3 As shown, Figure 2 The diagram shows the power supply system layout of the Haerwusu open-pit coal mine after improvement using the new type of switchgear 3 (one-input, multiple-output switchgear) in this embodiment. Figure 3 The diagram shows the power supply system layout of the Haerwusu open-pit coal mine using a conventional switchgear 2 (one-in-one-out switchgear). In order to achieve branching, a high-voltage distribution box 1 is set downstream of the conventional switchgear 2.

[0066] As can be seen from the above description, the embodiments of this utility model achieve the following technical effects:

[0067] The switchgear includes a voltage transformer cabinet and outgoing line cabinets. The outgoing line cabinets are electrically connected to the voltage transformer cabinets. There are at least two outgoing line cabinets, and the at least two outgoing line cabinets and the voltage transformer cabinets are spaced apart along a preset direction. There is a first preset distance L between the voltage transformer cabinets and the outgoing line cabinets, and there is also a first preset distance L between two adjacent outgoing line cabinets. A multi-function meter is installed on the outgoing line cabinet and is electrically connected to at least two outgoing line cabinets. Thus, the switchgear in this application actually has multiple outgoing line cabinets, that is, it has multiple outgoing lines. The multiple outgoing lines can be electrically connected to and supply power to multiple electrical devices respectively. When a certain electrical device fails, it is only necessary to operate the outgoing line cabinet electrically connected to the failed electrical device to disconnect the power, without affecting the normal operation of other electrical devices. This avoids the problem in the prior art where a single electrical device failure would cause other electrical devices to wait for repair, and thus solves the problem in the prior art that switchgear used in mining would affect the efficiency of coal mining. Meanwhile, existing switchgear for mining farms cannot actually monitor the power consumption of each electrical device. This is because the power output of the outgoing switchgear is actually the total power consumption of multiple electrical devices, which makes it impossible to accurately manage and monitor the power consumption of each device. However, this application can monitor the output power of each outgoing switchgear through a multi-functional meter, thereby monitoring the power consumption of each electrical device and achieving refined management of the power consumption of mining farm equipment.

[0068] Obviously, the embodiments described above are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of this utility model.

[0069] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0070] It should be noted that the terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in sequences other than those illustrated or described herein.

[0071] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A switch cabinet, characterized in that, include: Voltage transformer cabinet (10); Outgoing line cabinet (20) is electrically connected to the voltage transformer cabinet (10). There are at least two outgoing line cabinets (20). At least two outgoing line cabinets (20) and the voltage transformer cabinet (10) are arranged at intervals along a preset direction. There is a first preset distance L between the voltage transformer cabinet (10) and the outgoing line cabinet (20). There is a first preset distance L between two adjacent outgoing line cabinets (20). A multi-functional electricity meter is installed on the outgoing line cabinet (20), and the multi-functional electricity meter is electrically connected to at least two of the outgoing line cabinets (20).

2. The switchgear according to claim 1, characterized in that, The switchgear also includes: The main cabinet (30) has a mounting cavity; A partition (40) is disposed in the mounting cavity. There are multiple partitions (40) and they are spaced apart along the preset direction. Among three adjacent partitions (40), two adjacent partitions (40) surround the main cabinet (30) to form a sub-mounting cavity. The sub-mounting cavity is used to install electrical components to form the voltage transformer cabinet (10) or the outgoing line cabinet (20). The other two adjacent partitions (40) have the first preset distance L between them.

3. The switch cabinet according to claim 2, characterized in that, The electrical components include a disconnect switch with wireless control functionality, and the switch cabinet further includes: A wireless control module is installed on the main cabinet (30) and electrically connected to the isolating switch. The wireless control module is used to control the isolating switch to connect or disconnect.

4. The switch cabinet according to claim 3, characterized in that, The electrical components also include a circuit breaker, which has a wireless control function. The wireless control module is also electrically connected to the circuit breaker to control the circuit breaker to connect or disconnect.

5. The switchgear according to claim 3, characterized in that, The switchgear also includes: The microcomputer integrated protection device is installed on the main cabinet (30) and is electrically connected to the voltage transformer cabinet (10).

6. The switchgear according to claim 1, characterized in that, The switchgear also includes: Cable couplers (50) are provided on both the voltage transformer cabinet (10) and the outgoing line cabinet (20). The cable couplers (50) provided on the voltage transformer cabinet (10) are used for incoming lines, and the cable couplers (50) provided on the outgoing line cabinet (20) are used for outgoing lines.

7. The switch cabinet according to claim 3, characterized in that, The switch cabinet also includes a remote control device for use with the wireless control module.

8. The switchgear according to claim 2, characterized in that, The partition (40) is provided with a first through hole for passing through the wiring; and / or, the main cabinet (30) is provided with a second through hole for passing through the wiring.

9. The switchgear according to claim 1, characterized in that, The first preset distance L satisfies: L≥300mm.

10. The switchgear according to claim 2, characterized in that, The multi-function meter is an APM5 series network power meter; and / or, at least a portion of the outer surface of the main cabinet (30) is provided with a buffer layer made of a flexible material.

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