CN220775010U - Integrated box-type substation - Google Patents

Abstract

The application relates to an integrated box-type substation can effectively reduce the maintenance degree of difficulty of equipment, including equipment compartment, transformer, low voltage distribution device and high voltage distribution device. The transformer comprises a transformer body, a low-voltage side wire inlet end and a high-voltage side wire outlet end which are connected with the transformer body, and the transformer body is arranged outside the equipment cabin. The low-voltage distribution device is electrically connected to the low-voltage side wire inlet end, and is used for receiving electric energy of the power supply side and inputting the electric energy into the transformer. The high-voltage distribution device is electrically connected to the high-voltage side outlet end and used for merging the electric energy transformed by the transformer into the access point. The low-voltage power distribution device and the high-voltage power distribution device are arranged in the equipment cabin and are arranged on two opposite sides of the equipment cabin at intervals, and an operation space is formed between the low-voltage power distribution device and the high-voltage power distribution device.

Description

Integrated box-type substation

Technical Field

The application relates to the technical field of power equipment, in particular to an integrated box-type substation.

Background

With the rapid development of new energy power generation industry in China, the defects of the traditional boosting grid-connected scheme are gradually exposed. The traditional boosting grid-connected scheme is often provided with a transformer station and a switch station independently, and high-voltage and low-voltage switch equipment and a transformer are arranged in the transformer station; high-voltage cabinets such as a high-voltage incoming cabinet, a PT cabinet (potential transformer cabinet), a metering cabinet, an outgoing cabinet and secondary equipment are arranged in the switch station. The transformer station and the switch station occupy larger area, so that the maintenance difficulty of equipment is greatly increased, and the connection of a power cable and a secondary cable between the transformer station and the switch station increases fault points and later operation and maintenance work, so that the maintenance difficulty of related equipment is further increased.

Disclosure of Invention

Based on the above, it is necessary to provide an integrated box-type substation aiming at the problem of high equipment maintenance difficulty in the boosting grid-connected scheme.

An integrated box-type transformer substation comprises an equipment cabin, a transformer, a low-voltage distribution device and a high-voltage distribution device. The transformer comprises a transformer body, a low-voltage side wire inlet end and a high-voltage side wire outlet end which are connected with the transformer body, and the transformer body is arranged outside the equipment cabin. The low-voltage distribution device is electrically connected to the low-voltage side wire inlet end, and is used for receiving electric energy of the power supply side and inputting the electric energy into the transformer. The high-voltage distribution device is electrically connected to the high-voltage side outlet end and used for merging the electric energy transformed by the transformer into the access point. The low-voltage power distribution device and the high-voltage power distribution device are arranged in the equipment cabin and are arranged on two opposite sides of the equipment cabin at intervals, and an operation space is formed between the low-voltage power distribution device and the high-voltage power distribution device.

In one embodiment, the low voltage power distribution device comprises at least one low voltage inlet cabinet, the low voltage inlet cabinet comprises an output end and a plurality of receiving ends, each receiving end is used for receiving electric energy of a power source side, and the output end is electrically connected with the low voltage side inlet end so as to input the electric energy received by the plurality of receiving ends into the transformer.

In one embodiment, the low voltage power distribution device further comprises a station substation for providing auxiliary power to the integrated box-type substation. The station is with changing cabinet and at least one low-voltage inlet wire cabinet and setting up side by side along first direction, and the station is with changing cabinet and at least one low-voltage inlet wire cabinet's the cabinet front side that supplies operating personnel to maintain the operation all towards operating space, and the direction of the relative of high direction, low-voltage distribution device and high-voltage distribution device of first direction perpendicular to equipment compartment.

In one embodiment, the high-voltage distribution device comprises a high-voltage incoming line cabinet, a voltage transformer cabinet, a metering cabinet and a grid-connected cabinet which are sequentially arranged side by side along a first direction, wherein the high-voltage incoming line cabinet is electrically connected with a high-voltage side outgoing line end, the high-voltage incoming line cabinet, the voltage transformer cabinet, the metering cabinet and the grid-connected cabinet are sequentially electrically connected, and the grid-connected cabinet is used for combining electric energy into an access point, and the first direction is perpendicular to the height direction of the equipment compartment and the opposite direction of the low-voltage distribution device and the high-voltage distribution device.

In one embodiment, the high-voltage power distribution device further comprises a bus bar, and the high-voltage wire inlet cabinet, the voltage transformer cabinet, the metering cabinet and the grid-connected cabinet are all connected to the bus bar so as to be electrically connected in sequence.

In one embodiment, the front sides of the high-voltage wire inlet cabinet, the voltage transformer cabinet, the metering cabinet and the grid-connected cabinet, which are used for maintenance operation by operators, face the operation space.

In one embodiment, the transformer is located on the same side of the low-voltage distribution device and the high-voltage distribution device along the first direction, and the low-voltage side wire inlet end and the high-voltage side wire outlet end extend into the equipment compartment. The low-voltage distribution device and the high-voltage distribution device are provided with sealing plates on one side close to the transformer, and the sealing plates are detachably arranged in the equipment cabin to isolate an operation space from a low-voltage side wire inlet end and a high-voltage side wire outlet end of the transformer, wherein the first direction is perpendicular to the height direction of the equipment cabin and the opposite direction of the low-voltage distribution device and the high-voltage distribution device.

In one embodiment, the integrated box-type substation further comprises a secondary device, wherein the secondary device is arranged in the device cabin and is located on one side, away from the transformer, of the high-voltage distribution device, and the secondary device is used for protecting and controlling the transformer, the low-voltage distribution device and the high-voltage distribution device.

In one embodiment, the bottom of the equipment compartment is also provided with a maintenance port, and the maintenance port is positioned between the low-voltage power distribution device and the high-voltage power distribution device.

In one embodiment, the equipment compartment is provided with a plurality of openable and closable hatches, at least part of which are respectively arranged corresponding to the low-voltage distribution device and the high-voltage distribution device.

Above-mentioned integrated form box-type substation, with traditional low-voltage distribution device, high-voltage distribution device integration in the equipment cabin, and arrange the transformer body outside the equipment cabin for the electric energy that produces by the power side can be through low-voltage distribution device input transformer, and after the transformer was stepped up this electric energy, the electric energy after will stepping up was incorporated the access point via high-voltage distribution device, realizes traditional switching station and transformer station's function. Because the integrated box-type transformer substation of this scheme is integrated in an equipment cabin, not only the maintenance area is little, and has simplified the main wiring for the maintenance degree of difficulty of equipment reduces. In addition, the layout in the equipment cabin is reasonable, namely low-voltage distribution device and high-voltage distribution device are arranged on two opposite sides of the equipment cabin, so that an operation space is formed between the low-voltage distribution device and the high-voltage distribution device, equipment is convenient to maintain in the operation space, and the maintenance difficulty is further reduced.

Drawings

Fig. 1 is a schematic structural diagram of an integrated box-type substation according to an embodiment of the present application.

Reference numerals: 1. an equipment compartment; 11. an operation space; 12. a sealing plate; 13. a maintenance port; 14. a cabin door; 2. a transformer; 21. a low-voltage side wire inlet end; 22. a high-voltage side wire outlet end; 23. a heat dissipation part; 3. a low voltage power distribution device; 31. a low-voltage wire feeding cabinet; 32. a station changing cabinet; 4. a high voltage distribution device; 41. a high-voltage wire feeding cabinet; 42. a voltage transformer cabinet; 43. a metering cabinet; 44. a grid-connected cabinet; 45. reserving a space; 5. a secondary device; 6. a heat sink.

Detailed Description

In order to make the above objects, features and advantages of the present application more comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. This application is, however, susceptible of embodiment in many other forms than those described herein and similar modifications can be made by those skilled in the art without departing from the spirit of the application, and therefore the application is not to be limited to the specific embodiments disclosed below.

In the description of the present application, it should be understood that, if there are terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., these terms refer to the orientation or positional relationship based on the drawings, which are merely for convenience of description and simplification of description, and do not indicate or imply that the apparatus or element referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present application.

Furthermore, the terms "first," "second," and the like, if any, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present application, the terms "plurality" and "a plurality" if any, mean at least two, such as two, three, etc., unless specifically defined otherwise.

In this application, unless explicitly stated and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly. For example, the two parts can be fixedly connected, detachably connected or integrated; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art as the case may be.

In this application, unless expressly stated or limited otherwise, the meaning of a first feature being "on" or "off" a second feature, and the like, is that the first and second features are either in direct contact or in indirect contact through an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

It will be understood that if an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. If an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein, if any, are for descriptive purposes only and do not represent a unique embodiment.

Referring to fig. 1, fig. 1 shows a schematic structural diagram of an integrated box-type substation according to an embodiment of the present application, where the integrated box-type substation provided in an embodiment of the present application includes an equipment compartment 1, a transformer 2, a low-voltage distribution device 3, and a high-voltage distribution device 4.

Specifically, the transformer 2 includes a transformer body, and a low-voltage side wire inlet end 21 and a high-voltage side wire outlet end 22 connected to the transformer body, wherein the transformer body is disposed outside the equipment compartment 1. The low-voltage distribution device 3 and the high-voltage distribution device 4 are electrically connected to the low-voltage side wire inlet terminal 21 and the high-voltage side wire outlet terminal 22, respectively. The low-voltage distribution device 3 is used for receiving electric energy of a power source side and inputting the electric energy into the transformer 2, and the high-voltage distribution device 4 is used for integrating the electric energy transformed by the transformer 2 into an access point.

The access point refers to a connection position of electric energy generated by a power source side to an electric network, and the electric network can be a public electric network or a user electric network.

Further, the low-voltage power distribution device 3 and the high-voltage power distribution device 4 are both arranged in the equipment compartment 1 and are arranged at two opposite sides of the equipment compartment 1 at intervals, and an operation space 11 is formed between the low-voltage power distribution device 3 and the high-voltage power distribution device 4.

In this embodiment, the integrated box-type substation that this application provided, with traditional low-voltage distribution device 3, high-voltage distribution device 4 integration in equipment compartment 1, and arrange the transformer body outside equipment compartment 1 for the electric energy that produces by the power side can be through low-voltage distribution device 3 input transformer 2, and after the transformer 2 was risen this electric energy, the electric energy after will stepping up was incorporated the access point via high-voltage distribution device 4, realizes traditional switchyard and transformer station's function. Because the integrated box-type transformer substation of this scheme is integrated in an equipment compartment 1, not only the maintenance area is little, and has simplified the main wiring for the maintenance degree of difficulty of equipment reduces. In addition, the layout in the equipment cabin 1 is reasonable, namely the low-voltage power distribution device 3 and the high-voltage power distribution device 4 are arranged on two opposite sides of the equipment cabin 1, so that an operation space 11 is formed between the low-voltage power distribution device 3 and the high-voltage power distribution device, equipment is convenient to maintain in the operation space 11, and maintenance difficulty is further reduced.

In some embodiments, referring to fig. 1, the low voltage power distribution device 3 includes at least one low voltage inlet cabinet 31, the low voltage inlet cabinet 31 includes an output terminal and a plurality of receiving terminals, each receiving terminal is configured to receive power from a power source, and the output terminal is electrically connected to the low voltage side inlet terminal 21 so as to input the power received by the plurality of receiving terminals into the transformer 2. In this embodiment, the low-voltage inlet cabinet 31 has a plurality of receiving terminals capable of simultaneously controlling the parallel input of a plurality of electric power at the power supply side, and inputs the plurality of electric power into the transformer 2 through the output terminal, so as to ensure the flow of electric power in the boost grid-connected system and improve the economic benefit.

It is understood that the number of low voltage inlet cabinets 31 in the low voltage power distribution apparatus 3 of the present application may be 1, 2, 3 or others. The low-voltage power distribution device 3 comprises, for example, two low-voltage line cabinets 31, which two low-voltage line cabinets 31 are arranged side by side in a first direction. Wherein the first direction is perpendicular to the height direction of the equipment bay 1 and the opposite direction of the low voltage distribution device 3 and the high voltage distribution device 4.

Further, in some embodiments, referring to fig. 1, the low voltage power distribution device 3 further includes a station transformer 32, where the station transformer 32 is configured to provide auxiliary power to the integrated box-type substation.

Specifically, the station transformer 32 and the at least one low-voltage wire inlet cabinet 31 are arranged side by side along the first direction, and the front sides of the station transformer 32 and the at least one low-voltage wire inlet cabinet 31 for maintenance operation of an operator face the operation space 11, so that the operator can maintain the station transformer 32 and the low-voltage wire inlet cabinet 31 in the operation space 11. For example, an auxiliary dry transformer may be included in the station transformer cabinet 32 for providing auxiliary power to the entire integrated box-type substation. Illustratively, the station transformer 32 may further include an uninterruptible power supply therein for providing auxiliary power to important secondary circuits such as a measurement and control circuit, a frame breaker circuit, and the like in the integrated box-type substation.

In some embodiments, referring to fig. 1, the high-voltage distribution device 4 includes a high-voltage incoming cabinet 41, a voltage transformer cabinet 42, a metering cabinet 43, and a grid-connected cabinet 44 arranged side by side in sequence along the first direction, the high-voltage incoming cabinet 41 is electrically connected to the high-voltage side outgoing terminal 22, and the high-voltage incoming cabinet 41, the voltage transformer cabinet 42, the metering cabinet 43, and the grid-connected cabinet 44 are electrically connected in sequence, the grid-connected cabinet 44 being used to incorporate electrical energy into the access point.

In this embodiment, the high-voltage inlet cabinet 41, the voltage transformer cabinet 42, the metering cabinet 43 and the grid-connected cabinet 44 jointly realize the functions of controlling the flow of the boosted electric energy, metering and integrating the boosted electric energy into a power grid. The high-voltage inlet cabinet 41, the voltage transformer cabinet 42, the metering cabinet 43, and the grid-connected cabinet 44 are arranged in the first direction, and are provided so as to face the low-voltage distribution device 3 (the low-voltage inlet cabinet 31 and the station transformer cabinet 32). Through reasonable overall arrangement, not only save space, and compare in traditional transformer station and switchyard, high-voltage inlet wire cabinet 41 can have the function of transformer station's high-voltage cabinet and switchyard's high-voltage inlet wire cabinet 41 concurrently in this application's integrated box-type substation, simplifies the main wiring, reduces the fault point of equipment.

Specifically, in some embodiments, referring to fig. 1, the high-voltage power distribution device 4 further includes a bus bar, where the high-voltage incoming line cabinet 41, the voltage transformer cabinet 42, the metering cabinet 43, and the grid-connected cabinet 44 are all connected to the bus bar, so as to be electrically connected in sequence, and the structure is simple and the reliability is high. By way of example, the busbar may be a copper busbar, an aluminum busbar, or the like.

Furthermore, the front sides of the high-voltage incoming line cabinet 41, the voltage transformer cabinet 42, the metering cabinet 43 and the grid-connected cabinet 44, which are used for maintenance operation by operators, face the operation space 11, so that the operators can maintain the high-voltage incoming line cabinet 41, the voltage transformer cabinet 42, the metering cabinet 43 and the grid-connected cabinet 44 in the operation space 11, and convenience of equipment maintenance is improved.

In some embodiments, referring to fig. 1, the high-voltage power distribution device 4 further has a reserved space 45, so as to arrange corresponding devices according to actual needs. The headspace 45 may be located, for example, on a side of the grid tie cabinet 44 that is remote from the metering cabinet 43 in the first direction. The headspace 45 may also be located, for example, on a side of the high voltage feeder cabinet 41 that is remote from the voltage transformer cabinet 42 in the first direction.

In some embodiments, referring to fig. 1, the transformer 2 includes a transformer body and a low-side inlet terminal 21 and a high-side outlet terminal 22 connected to the transformer body, and the transformer body is disposed outside the equipment compartment 1. Specifically, the side of the transformer body far away from the low-voltage side wire inlet end 21 and the high-voltage side wire outlet end 22 is further provided with a heat dissipation part 23, and the heat dissipation part 23 is also located outside the equipment compartment 1, so that heat dissipation of the transformer 2 is facilitated. The heat sink 23 may be a plurality of heat sinks, which may be welded to the body of the transformer 2 as an integral structure, for example.

In some embodiments, referring to fig. 1, the transformer 2 is located on the same side of the low voltage distribution device 3 and the high voltage distribution device 4 along the first direction, and the low voltage side wire inlet end 21 and the high voltage side wire outlet end 22 extend into the equipment compartment 1.

Further, a sealing plate 12 is disposed on a side of the low-voltage power distribution device 3 and the high-voltage power distribution device 4 near the transformer 2, and the sealing plate 12 is detachably disposed in the equipment compartment 1 to isolate the operating space 11 from the low-voltage side wire inlet end 21 and the high-voltage side wire outlet end 22 of the transformer 2. Under the isolation effect of the sealing plate 12, the safety and reliability of the equipment maintenance by operators are improved, and the personal safety of the operators is ensured.

In some embodiments, the integrated box-type substation further comprises a secondary device 5, wherein the secondary device 5 is arranged in the equipment compartment 1 and is located on one side of the high-voltage distribution device 4 away from the transformer 2, and the secondary device 5 is used for protecting and controlling the transformer 2, the low-voltage distribution device 3 and the high-voltage distribution device 4. The secondary device 5 has a display screen for terminal management, for example, to protect and control the transformer 2, the low-voltage distribution device 3 and the high-voltage distribution device 4.

Further, referring to fig. 1, the integrated box-type substation may further be provided with a heat dissipation device 6 to timely dissipate heat of each device in the device cabin 1. The heat dissipating device 6 may be an air conditioning apparatus, including an air conditioning indoor unit located inside the equipment compartment 1 and an air conditioning outdoor unit located outside the equipment compartment 1, for example. For example, the air conditioning indoor unit and the air conditioning outdoor unit may be hung on the bulkhead of the equipment compartment 1.

Furthermore, referring to fig. 1, in some embodiments, a maintenance port 13 is further provided at the bottom of the equipment compartment 1, and the maintenance port 13 is located between the low voltage power distribution device 3 and the high voltage power distribution device 4, so that an operator can enter the equipment compartment 1 through the maintenance port, and maintenance on equipment is achieved.

Further, in some embodiments, the equipment compartment 1 is provided with a plurality of openable and closable hatches 14, and at least part of the hatches 14 are respectively corresponding to the low-voltage power distribution device 3 and the high-voltage power distribution device 4, so that the low-voltage power distribution device 3 and the high-voltage power distribution device 4 are installed in the equipment compartment 1, and electric connection work in the equipment is facilitated. For example, the openable and closable doors 14 may be provided at positions of the equipment room 1 corresponding to the display screen and the indoor unit of the air conditioner.

The integrated box-type substation provided by the application can realize advanced prefabrication, saves the processes of site construction, electric connection in the equipment cabin 1 and the like, reduces the construction cost and time, improves the reliability and is convenient for later maintenance.

Therefore, the integrated box-type transformer substation provided by the application has the advantages of low maintenance difficulty, convenience in construction, small occupied area, low manufacturing cost and the like, can be widely applied to boosting grid-connected systems such as photovoltaic power generation, wind power generation, hydroelectric power generation and the like, and has wide application prospects in power generation industries such as solar energy, biomass energy, wind energy, geothermal energy, wave energy, ocean current energy, tidal energy and the like.

The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The above examples only represent a few embodiments of the present application, which are described in more detail and are not to be construed as limiting the scope of the claims. It should be noted that it would be apparent to those skilled in the art that various modifications and improvements could be made without departing from the spirit of the present application, which would be within the scope of the present application. Accordingly, the scope of protection of the present application is to be determined by the claims appended hereto.

Claims (10)

1. An integrated box-type substation, comprising:

an equipment compartment;

the transformer comprises a transformer body, a low-voltage side wire inlet end and a high-voltage side wire outlet end, wherein the low-voltage side wire inlet end and the high-voltage side wire outlet end are connected to the transformer body, and the transformer body is arranged outside the equipment cabin;

the low-voltage distribution device is electrically connected to the low-voltage side wire inlet end and is used for receiving electric energy of a power supply side and inputting the electric energy into the transformer; and

the high-voltage distribution device is electrically connected to the high-voltage side outlet end and is used for merging the electric energy transformed by the transformer into an access point;

the low-voltage power distribution device and the high-voltage power distribution device are arranged in the equipment cabin, the low-voltage power distribution device and the high-voltage power distribution device are arranged on two opposite sides of the equipment cabin at intervals, and an operation space is formed between the low-voltage power distribution device and the high-voltage power distribution device.

2. The integrated box-type substation according to claim 1, wherein the low-voltage distribution device comprises at least one low-voltage inlet cabinet, the low-voltage inlet cabinet comprising an output end and a plurality of receiving ends, each of the receiving ends being for receiving the power of the power source side, the output end being electrically connected to the low-voltage side inlet end for inputting the power received by the plurality of receiving ends into the transformer.

3. The integrated box-type substation according to claim 2, characterized in that the low-voltage distribution device further comprises a station-use substation for providing auxiliary electric energy to the integrated box-type substation; the station transformer cabinet and the at least one low-voltage wire inlet cabinet are arranged side by side along a first direction, the front sides of the station transformer cabinet and the at least one low-voltage wire inlet cabinet, which are used for maintenance operation by operators, face the operation space, and the first direction is perpendicular to the height direction of the equipment cabin and the opposite direction of the low-voltage power distribution device and the high-voltage power distribution device.

4. The integrated box-type substation according to claim 1, wherein the high-voltage distribution device comprises a high-voltage incoming line cabinet, a voltage transformer cabinet, a metering cabinet and a grid-connected cabinet which are sequentially arranged side by side along a first direction, the high-voltage incoming line cabinet is electrically connected with the high-voltage side outgoing line end, the high-voltage incoming line cabinet, the voltage transformer cabinet, the metering cabinet and the grid-connected cabinet are sequentially electrically connected, and the grid-connected cabinet is used for integrating electric energy into the access point, wherein the first direction is perpendicular to the height direction of the equipment compartment, and the opposite direction of the low-voltage distribution device and the high-voltage distribution device.

5. The integrated box-type substation of claim 4, wherein the high-voltage distribution device further comprises a bus bar, and the high-voltage incoming line cabinet, the voltage transformer cabinet, the metering cabinet and the grid-connected cabinet are all connected to the bus bar so as to be electrically connected in sequence.

6. The integrated box-type substation according to claim 4, wherein the front sides of the high-voltage incoming line cabinet, the voltage transformer cabinet, the metering cabinet and the grid-connected cabinet for maintenance operation by operators face the operation space.

7. The integrated box-type substation according to claim 1, wherein the transformer is located on the same side of the low-voltage distribution device and the high-voltage distribution device in a first direction, and the low-voltage side incoming line end and the high-voltage side outgoing line end extend into the equipment compartment;

the low-voltage power distribution device and the high-voltage power distribution device are provided with sealing plates on one side close to the transformer, the sealing plates are detachably arranged in the equipment cabin to isolate the operation space from the low-voltage side wire inlet end and the high-voltage side wire outlet end of the transformer, and the first direction is perpendicular to the height direction of the equipment cabin and the opposite direction of the low-voltage power distribution device and the high-voltage power distribution device.

8. The integrated box-type substation according to claim 7, further comprising a secondary device disposed in the device compartment and located on a side of the high-voltage distribution device remote from the transformer, the secondary device being configured to protect and control the transformer, the low-voltage distribution device, and the high-voltage distribution device.

9. The integrated box-type substation according to claim 8, wherein the equipment room bottom is further provided with a maintenance opening, the maintenance opening being located between the low voltage distribution device and the high voltage distribution device.

10. The integrated box-type substation according to claim 7, wherein the equipment compartment is provided with a plurality of openable and closable hatches, at least part of which are provided in correspondence with the low-voltage distribution device and the high-voltage distribution device, respectively.