Prefabricated cabin type switching station

Abstract

The utility model relates to the high and low voltage electrical technology field, and provides a prefabricated cabin type switching station comprising a bottom conductive frame, a top conductive frame and a plurality of conductive vertical beams, the bottom conductive frame and the top conductive frame are oppositely arranged, and the plurality of conductive vertical beams are arranged between the bottom conductive frame and the top conductive frame at intervals. The plurality of conductive vertical beams are arranged on the bottom conductive frame and located at the edges of the bottom conductive frame and the top conductive frame, the bottom conductive frame, the top conductive frame and the plurality of conductive vertical beams jointly define a prefabricated cabin, and at least one wiring terminal is arranged on the outer side of the bottom conductive frame and used for being grounded. According to the prefabricated cabin type switching station provided by the utility model, the prefabricated cabin body enclosed by the bottom conductive frame, the top conductive frame and the conductive vertical beams can form a Faraday cage structure, and the prefabricated cabin body is grounded through the wiring terminal, so that the danger inside and outside the prefabricated cabin type switching station can be effectively reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to high and low voltage electrical technology field especially relates to a prefabricated cabin type switch station. BACKGROUND

[0002] In the field of distributed photovoltaic power station, when the power station capacity is in the interval of 400kW to 6MW, 10kV grid-connected mode is usually adopted. Therefore, a 10kV prefabricated cabin type switch station needs to be built. This kind of switch station belongs to a complete set of devices, covering complex systems such as electricity, structure, communication, etc., so the requirement for technology is extremely high in terms of professionalism and systematicness. With the rapid development of distributed new energy projects, more and more 10kV prefabricated cabin type switch stations are built, and the switch station may be located in an area where personnel are easy to access. However, the access threshold of construction units is low, and the control ability is poor, which leads to low safety of the prefabricated cabin type switch station. SUMMARY

[0003] The utility model provides a prefabricated cabin type switch station to solve the defect that the safety of prefabricated cabin type switch station in prior art is low, the prefabricated cabin body formed by the bottom conductive frame, top conductive frame and conductive vertical beam can form a "Faraday cage" structure, and the prefabricated cabin body is also grounded through the terminal, and this design can effectively reduce the danger inside and outside the prefabricated cabin type switch station.

[0004] The prefabricated cabin type switch station provided by the utility model, including bottom conductive frame, top conductive frame and multiple conductive vertical beams, the bottom conductive frame and the top conductive frame are oppositely arranged, multiple the conductive vertical beams are arranged at intervals between the bottom conductive frame and the top conductive frame and are located at the edge of the bottom conductive frame and the top conductive frame, the bottom conductive frame, the top conductive frame and multiple the conductive vertical beams jointly enclose and form a prefabricated cabin body, at least one terminal is arranged on the outside of the bottom conductive frame, and the terminal is used for grounding.

[0005] The prefabricated cabin type switch station provided by the utility model further includes a conductive floor layer, which is laid on the top of the bottom conductive frame, and the conductive floor layer is electrically connected with the bottom conductive frame.

[0006] The prefabricated cabin type switch station provided by the utility model further includes a partition wall, which is arranged inside the prefabricated cabin body, and the partition wall is used for dividing the prefabricated cabin body into a high-voltage chamber and a secondary equipment chamber, the high-voltage chamber is arranged with multiple primary equipments, and the secondary equipment chamber is arranged with multiple secondary equipments.

[0007] The prefabricated cabin type switch station provided by the utility model further includes an anti-static floor layer, which is laid on the top of the conductive floor layer and located in the secondary equipment chamber.

[0008] The base of each secondary device is arranged between the anti-static floor layer and the conductive floor layer and is electrically connected with the conductive floor layer.

[0009] The prefabricated cabin type switch station further comprises a ring-shaped anti-interference assembly, the ring-shaped anti-interference assembly is attached to the side wall of each secondary device base along a ring-shaped path, and the signal equipotential grounding interface of each secondary device is respectively electrically connected with the ring-shaped anti-interference assembly, and the ring-shaped anti-interference assembly is electrically connected with the wiring terminal.

[0010] The prefabricated cabin type switch station further comprises a ring-shaped anti-interference assembly, the ring-shaped anti-interference assembly is attached to the side wall of each secondary device base along a ring-shaped path, and the signal equipotential grounding interface of each secondary device is respectively electrically connected with the ring-shaped anti-interference assembly, and the ring-shaped anti-interference assembly is electrically connected with the wiring terminal.

[0011] The ring-shaped support and the ring-shaped equipotential copper bar are laid along a ring-shaped path, the ring-shaped support is used for being connected with the side wall of each secondary device base, the signal equipotential grounding interface of each secondary device is respectively electrically connected with the ring-shaped equipotential copper bar, and the ring-shaped equipotential copper bar is used for being electrically connected with the wiring terminal.

[0012] The prefabricated cabin type switch station further comprises a low-voltage distribution box and a plurality of low-voltage electrical equipment, the low-voltage distribution box and the plurality of low-voltage electrical equipment are located in the secondary device room, and the shell of the low-voltage distribution box and the shells of the plurality of low-voltage electrical equipment are respectively electrically connected with the AC screen in the plurality of secondary devices.

[0013] The prefabricated cabin type switch station further comprises a low-voltage distribution box and a plurality of low-voltage electrical equipment, the low-voltage distribution box and the plurality of low-voltage electrical equipment are located in the secondary device room, and the shell of the low-voltage distribution box and the shells of the plurality of low-voltage electrical equipment are respectively electrically connected with the AC screen in the plurality of secondary devices.

[0014] The prefabricated cabin type switch station further comprises a plurality of non-electric devices, the plurality of non-electric devices are respectively arranged in the prefabricated cabin body, and each non-electric device is respectively electrically connected with the wiring terminal.

[0015] The prefabricated cabin type switch station further comprises a first indoor grounding terminal box and a second indoor grounding terminal box, the first indoor grounding terminal box is arranged in the high-voltage room and is electrically connected with the wiring terminal, and the second indoor grounding terminal box is arranged in the secondary device room and is electrically connected with the grounding terminal.

[0016] The prefabricated cabin body formed by the bottom conductive frame, the top conductive frame and the conductive vertical beams can form a "Faraday cage" structure, when an external electric field acts on the prefabricated cabin body, free electrons on the outer surface of the prefabricated cabin body will be redistributed under the action of the electric field, the free electrons will generate an electric field on the outer surface of the prefabricated cabin body, the electric field is equal in size and opposite in direction to the external electric field, so that the internal electric fields of the prefabricated cabin body are offset, the effect of electrostatic shielding is formed, and the electric field intensity inside the prefabricated cabin body is almost zero, so that a reliable and safe working environment can be formed for the staff inside the prefabricated cabin body.

[0017] Secondly, the top conductive frame can directly serve as a top surface lightning strip of the prefabricated cabin switch station, the plurality of conductive vertical beams can serve as wires of the top surface lightning strip, and the top surface lightning strip is electrically connected with the wiring terminal, so that the top surface lightning strip can play the effect of a lightning rod, and the top conductive frame can effectively reduce the probability that the prefabricated cabin switch station is struck by lightning in thunder weather, and the safety of the prefabricated cabin switch station can be effectively improved.

[0018] In addition, in the power system operation environment, various complex electromagnetic signals exist, such as a strong electric field and a magnetic field generated by a nearby high-voltage transmission line, electromagnetic wave radiation of a communication base station and the like, and the complex electromagnetic signals can cause serious electromagnetic interference to the equipment inside the prefabricated cabin body, and when external electromagnetic interference waves are incident on the prefabricated cabin body in the prefabricated cabin switch station provided in the embodiment of the utility model, the outer surface of the prefabricated cabin body can induce current, the reverse electromagnetic field generated by the induced current can offset the external interference electromagnetic field, the electromagnetic interference intensity entering the cabin is greatly weakened, the accuracy and stability of the electric signal transmission of secondary equipment, such as a communication equipment screen cabinet and a secondary screen cabinet, which have extremely strict requirements on electromagnetic environment, can be ensured, data transmission errors and equipment malfunctions caused by electromagnetic interference can be avoided, and the reliable operation of the overall control system of the switch station can be ensured.

[0019] Compared with the prior art, in the prefabricated cabin switch station provided in the embodiment of the utility model, the prefabricated cabin body is also grounded through the wiring terminal when in use, so that even if there is electric charge on the outer surface of the prefabricated cabin body, the electric charge can flow into the ground through the wiring terminal, the design can ensure that the potential of the outer surface of the prefabricated cabin body is the same as that of the ground, and touching the outer surface of the prefabricated cabin body is as safe as touching a normal grounded metal object, based on this, even if the prefabricated cabin switch station is located in an area where people are relatively concentrated, the prefabricated cabin switch station will not pose a threat to the surrounding crowd or the operating personnel inside, and the danger inside and outside the prefabricated cabin switch station can be effectively reduced. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the present application or the prior art, the following will briefly introduce the drawings needed in the embodiments or the prior art description. Obviously, the drawings described below are some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0021] Figure 1 It is the front view of the prefabricated cabin type switch station provided by the embodiment of the present application.

[0022] Figure 2 It is the side view of the prefabricated cabin type switch station provided by the embodiment of the present application.

[0023] Figure 3 It is the bottom structure schematic view of the secondary equipment room provided by the embodiment of the present application.

[0024] Figure 4 It is the top view of the prefabricated cabin type switch station provided by the embodiment of the present application.

[0025] Figure 5 It is the connection schematic view of the first indoor grounding terminal box provided by the embodiment of the present application.

[0026] Figure 6 It is the sectional view of the wall of the prefabricated cabin provided by the embodiment of the present application.

[0027] Reference signs:

[0028] 01: bottom conductive frame; 02: wiring terminal; 03: top conductive frame; 04: conductive vertical beam; 05: conductive floor layer; 06: partition wall; 07: high-voltage chamber; 08: secondary equipment room; 09: anti-static floor layer; 10: primary equipment; 11: secondary equipment; 12: equipotential grounding interface; 13: annular anti-interference assembly; 14: annular support; 15: annular equipotential copper bar; 16: insulator; 17: first indoor grounding terminal box; 18: rock wool sandwich panel; 19: rock wool; 20: corrugated board. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solutions and advantages of the present application more clear, the technical solutions in the present application will be described clearly and completely below in combination with the drawings in the present application. Obviously, the described embodiments are some embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0030] In the description of the embodiments of the present application, it should be noted that unless specifically defined and limited, the terms "connected", "connected" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrally connected, it can be mechanically connected, or it can be electrically connected, it can be directly connected, or it can be indirectly connected through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0031] In the embodiments of the present application, unless otherwise specifically defined and limited, the first feature is "on" or "under" the second feature, which can be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature "above", "over" and "on" the second feature can be that the first feature is directly above or obliquely above the second feature, or it only means that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "under" and "under" the second feature can be that the first feature is directly below or obliquely below the second feature, or it only means that the horizontal height of the first feature is less than that of the second feature.

[0032] In the description of the present application, the description of the terms "one embodiment", "some embodiments", "example", "specific example" or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In the present application, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, the skilled in the art can combine and combine the different embodiments or examples described in the present application and the features of the different embodiments or examples without contradiction.

[0033] Figure 1 is the front view of the prefabricated cabin type switch station provided by the embodiments of the present application; Figure 2 is the side view of the prefabricated cabin type switch station provided by the embodiments of the present application.

[0034] Referring to Figure 1 and Figure 2The embodiment of the utility model provides a prefabricated cabin type switch station, prefabricated cabin type switch station includes bottom conductive frame 01, top conductive frame 03 and a plurality of conductive vertical beams 04, bottom conductive frame 01 and top conductive frame 03 are oppositely arranged, and the shape of bottom conductive frame 01 and top conductive frame 03 is matched, a plurality of conductive vertical beams 04 are parallelly and intervally arranged between bottom conductive frame 01 and top conductive frame 03, and are arranged along the edge of bottom conductive frame 01 and top conductive frame 03, bottom conductive frame 01 and top conductive frame 03 can realize the electric connection between the two through conductive vertical beam 04.

[0035] A plurality of conductive vertical beams 04, bottom conductive frame 01 and top conductive frame 03 form a prefabricated cabin body, in the optional embodiment of the utility model, wall body can be wrapped between any two of a plurality of conductive vertical beams 04, bottom conductive frame 01 and top conductive frame 03, and window, switch door and other components can be arranged on the wall body, specifically, the prior art can be referred to.

[0036] Among them, the outer side of bottom conductive frame 01 is provided with at least one terminal 02, terminal 02 is used for the grounding of construction unit, Figure 2 As shown in the figure, it is four terminals 02, and the number of terminal 02 can be adaptively set according to actual conditions. Figure 1 And Figure 2 It can be understood that the prefabricated cabin type switch station provided by the embodiment of the utility model can form a "Faraday cage" structure, when the external electric field acts on the prefabricated cabin body, the free electrons on the outer surface of the prefabricated cabin body will be redistributed under the action of the electric field, and these free electrons will generate an electric field on the outer surface of the prefabricated cabin body, which is equal in size and opposite in direction to the external electric field, so that the internal electric field of the prefabricated cabin body is almost zero, so that a reliable and safe working environment can be formed for the staff in the prefabricated cabin body.

[0037] Secondly, top conductive frame 03 can directly serve as the top surface lightning belt of prefabricated cabin type switch station, a plurality of conductive vertical beams 04 can serve as the wire of top surface lightning belt, and top surface lightning belt and terminal 02 are electrically connected, so that the top surface lightning belt can play the effect of lightning rod, and in thunder and lightning weather, top conductive frame 03 can effectively reduce the probability of lightning strike on prefabricated cabin type switch station, and can effectively improve the safety of prefabricated cabin type switch station.

[0038] In addition, in the power system operation environment, there are various complex electromagnetic signals, such as strong electric field and magnetic field generated by a nearby high-voltage transmission line, electromagnetic wave radiation of a communication base station and the like, and the complex electromagnetic signals can cause serious electromagnetic interference to the equipment inside the prefabricated cabin, and when the external electromagnetic interference wave is incident on the prefabricated cabin in the prefabricated cabin type switch station provided in the embodiment of the utility model, the outer surface of the prefabricated cabin can induce current, and the reverse electromagnetic field generated by the induced current can offset the external interference electromagnetic field, so that the electromagnetic interference strength entering the cabin is greatly weakened, and the accuracy and stability of the electric signal transmission of the secondary equipment 11 which has extremely strict requirements on the electromagnetic environment, such as a communication equipment screen cabinet and a secondary screen cabinet, can be ensured, and problems such as data transmission error and equipment malfunction caused by electromagnetic interference can be avoided, so that the reliable operation of the overall control system of the switch station can be ensured.

[0039] Compared with the prior art, in the prefabricated cabin type switch station provided in the embodiment of the utility model, the prefabricated cabin is also grounded through the wiring terminal 02 when in use, so that even if there is electric charge on the outer surface of the prefabricated cabin, the electric charge can flow into the ground through the wiring terminal 02, and the design can ensure that the potential of the outer surface of the prefabricated cabin is the same as that of the ground, so that touching the outer surface of the prefabricated cabin is as safe as touching a normal grounded metal object, and based on this, even if the prefabricated cabin type switch station is located in an area where people are relatively concentrated, the prefabricated cabin type switch station will not pose a threat to the surrounding crowd or the operating personnel inside, and the design can effectively reduce the danger inside and outside the prefabricated cabin type switch station.

[0040] Figure 3 is a bottom structure schematic view of the secondary equipment room provided in the embodiment of the utility model.

[0041] Referring to Figure 3 In the optional embodiment of the utility model, a conductive floor layer 05 is further included, the conductive floor layer 05 is laid on the top of the bottom conductive frame 01, and the conductive floor layer 05 is electrically connected with the bottom conductive frame 01, and it can be understood that the conductive floor layer 05, the bottom conductive frame 01, the conductive vertical beam 04 and the top conductive frame 03 jointly build a more perfect Faraday cage structure, and in this closed structure, the electromagnetic shielding effect is significantly enhanced, and when there is external electromagnetic interference, the conductive floor layer 05 and other conductive components can work cooperatively to effectively shield the interference signal from entering the prefabricated cabin.

[0042] Figure 4 is a top view of the prefabricated cabin type switch station provided in the embodiment of the utility model.

[0043] Referring to Figure 3 and Figure 4In the optional embodiment of the utility model, still include the partition wall 06, the partition wall 06 is located in the inside of prefabricated cabin, the partition wall 06 is used to separate prefabricated cabin into high pressure chamber 07 and secondary equipment room 08, multiple primary equipment 10 are arranged in high pressure chamber 07, for example, the collection line cabinet, the grid-connected cabinet, the measurement cabinet station, the transformer cabinet and the bus equipment cabinet etc., multiple secondary equipment 11 are arranged in secondary equipment room 08, for example, the communication protection screen, the dispatch security screen, the full volume information screen, the background monitoring screen, the video monitoring screen, the direct current screen and the alternating current screen etc.;The specific setting of high pressure chamber 07, secondary equipment room 08, primary equipment 10 and secondary equipment 11 can refer to prior art, this text will not be elaborated one by one here.

[0044] Continuing to refer to Figure 3 In the optional embodiment of the utility model, an anti-static floor layer 09 is further included, the anti-static floor layer 09 is laid above the conductive floor layer 05, and the two are spaced apart, specifically, the anti-static floor layer 09 can be spaced apart above the conductive floor layer 05 by angle steel or other supporting members, or can be adaptively designed according to the laying method of wood floor in the prior art.

[0045] The anti-static floor layer 09 is only located in the secondary equipment room 08 in the foregoing embodiment, and the base of each secondary equipment 11 in the secondary equipment room 08 penetrates between the anti-static floor layer 09 and the conductive floor layer 05, and the base of the secondary equipment 11 is further electrically connected with the conductive floor layer 05, in other words, the overall housing of the secondary equipment 11 is electrically connected with the conductive floor layer 05.

[0046] It can be understood that in the secondary equipment room 08, static electricity is easily generated due to factors such as personnel movement and equipment operation, and the anti-static floor layer 09 has good static electricity dissipation performance, which can quickly guide away the generated static electricity to prevent static electricity from accumulating in the room; specifically, when the staff moves in the room, static electricity will be generated by the friction between the soles and the floor, and if the static electricity cannot be dissipated in time, static electricity discharge phenomenon may occur when it accumulates to a certain extent, and the anti-static floor layer 09 can prevent static electricity from accumulating on the floor surface, thereby effectively reducing the risk of static electricity discharge.

[0047] For the secondary equipment 11, the secondary equipment 11 is mostly a weak electric component and is sensitive to static electricity, and the instantaneous high voltage and large current generated by static electricity discharge may break through the electronic component and damage the equipment, affecting the normal operation of the switching station; the anti-static floor layer 09 provided in the embodiment can guide away static electricity, thereby providing a relatively static electricity safe environment for the secondary equipment 11.

[0048] In addition, the secondary device 11 base is electrically connected with the conductive floor layer 05, which builds a low-resistance grounding path for the secondary device 11. Specifically, when the secondary device 11 is running, leakage or induced charge occurs, the current can be quickly conducted to the conductive floor layer 05 through the base, and then flows into the ground through the wiring terminal 02 of the bottom conductive frame 01. When internal insulation failure of the device causes leakage, this connection mode can quickly conduct the leakage current into the ground, avoid the device shell being electrified, and greatly reduce the risk of electric shock.

[0049] With reference to the above Figure 3 In an optional embodiment of the utility model, the prefabricated cabin type switch station further comprises a ring-shaped anti-interference assembly 13, the ring-shaped anti-interference assembly 13 is attached to the side wall of the base of each secondary device 11 along a ring-shaped path, and the signal equipotential grounding interface 12 of each secondary device 11 is electrically connected with the ring-shaped anti-interference assembly 13 respectively, and the ring-shaped anti-interference assembly 13 is electrically connected with the wiring terminal 02.

[0050] It can be understood that there are a large number of strong electric devices in the power system, and the electromagnetic field generated when the devices are running will interfere with the electromagnetism of the secondary device 11. In the prefabricated cabin type switch station provided in the embodiment, the ring-shaped equipotential copper bar 15 is electrically connected with the wiring terminal 02, and the induced interference current can be conducted into the ground. In this way, when instantaneous strong electromagnetic interference is generated during the operation of the high-voltage device, the ring-shaped anti-interference assembly 13 can quickly lead away the interference current, protect the secondary device 11 from interference, and maintain the normal working state of the device.

[0051] It should be noted that the ring-shaped anti-interference assembly 13 and the wiring terminal 02 can be directly electrically connected, for example through a cable, or indirectly electrically connected, for example through the bottom conductive frame 01 and the conductive floor layer 05. Specifically, it can be adaptively set according to the actual situation.

[0052] With reference to the above Figure 3 In an optional embodiment of the utility model, the ring-shaped anti-interference assembly 13 comprises a ring-shaped support 14, a ring-shaped equipotential copper bar 15 and a plurality of insulators 16, the ring-shaped support 14 and the ring-shaped equipotential copper bar 15 are oppositely arranged, and the plurality of insulators 16 are arranged between the ring-shaped support 14 and the ring-shaped equipotential copper bar 15; the ring-shaped support 14 and the ring-shaped equipotential copper bar 15 are laid along a ring-shaped path, the ring-shaped support 14 is used for connecting with the side wall of the base of each secondary device 11, the signal equipotential grounding interface 12 of each secondary device 11 is electrically connected with the ring-shaped equipotential copper bar 15 respectively, and the ring-shaped equipotential copper bar 15 is electrically connected with the wiring terminal 02.

[0053] The shape of the annular support 14 and the annular equipotential copper bar 15 can be a regular annular shape, for example, a circular ring, or a special-shaped annular shape, as long as it can be coupled with each secondary device 11 respectively.

[0054] It can be understood that during the operation of the power system, different positions of the secondary device room 08 can have potential differences due to various factors, which is extremely unfavorable for weak signal transmission. The annular equipotential copper bar 15 can connect the signal equipotential grounding interface 12 of each secondary device 11, so that the potentials of the devices are consistent. In other words, the annular equipotential copper bar 15 is arranged around the base of the secondary device 11, and can unify the potentials of each part of the secondary device 11, effectively building an equipotential environment. The existence of the annular equipotential copper bar 15 avoids signal distortion, error codes and other problems caused by potential differences, ensures accurate transmission of data within the device, and ensures stable operation of the communication system. Secondly, the annular equipotential copper bar 15 is electrically connected with the wiring terminal 02. When external electromagnetic interference induces current on the secondary device 11, the annular equipotential copper bar 15 can quickly conduct the interference current to the wiring terminal 02 and then to the ground.

[0055] In the optional embodiment of the utility model, a low-voltage distribution box and a plurality of low-voltage electrical equipment are further included, and the low-voltage distribution box and the plurality of low-voltage electrical equipment are located in the secondary device room 08. The shell of the low-voltage distribution box and the shell of the plurality of low-voltage electrical equipment are respectively electrically connected with the AC screen in the plurality of secondary devices 11. The low-voltage electrical equipment includes air conditioners, fans, lamps, and pipes, and the electrical connection can be connected by wires.

[0056] It can be understood that in this way, when the low-voltage distribution box or the low-voltage electrical equipment leaks during device operation, the current can be connected to the AC screen through the connection, guided to the ground through the AC screen grounding line. This effectively avoids the charging of the device shell, reduces the risk of electric shock when personnel contact, and quickly guides the leakage current to the ground when the low-voltage electrical equipment leaks due to insulation damage, ensuring the safety of workers and reducing electrical fires and other safety accidents caused by leakage.

[0057] In the optional embodiment of the utility model, the shell of each primary device 10 is respectively electrically connected with the wiring terminal 02, and the side neutral point of the station transformer cabinet is reliably connected with the wiring terminal 02 through 2 cables. The primary device 10 includes a station transformer cabinet, a power collection line cabinet, a power collection line cabinet, a busbar device cabinet, a metering cabinet, and a grid-connected cabinet. The specific arrangement of the primary device 10 can be adaptively arranged according to the prior art.

[0058] It can be understood that, during the operation of the primary device 10, the shell can be electrified due to insulation damage, overvoltage and the like, in the embodiment of the utility model, the shell is electrically connected with the wiring terminal 02, the wiring terminal 02 is connected with the grounding system again, the electric charge on the shell can be rapidly guided into the earth. When the device appears the leakage situation, the current can be safely guided through the low-resistance grounding path, and the electric shock risk of personnel when contacting the shell of the device is avoided.

[0059] In the optional embodiment of the utility model, a plurality of non-electric devices are arranged in the prefabricated cabin, and each non-electric device is electrically connected with the wiring terminal 02. The non-electric device includes a cable shaft shell, a wire holder, a ladder, a metal rainproof shutter and a metal rainproof cover, and the like. It can be understood that grounding these components can effectively prevent electric shock caused by induction or leakage, and can also prevent them from being electrified in bad weather conditions, reducing the risk of electric shock when personnel are active around the switch station.

[0060] Figure 5 The utility model discloses a first indoor grounding terminal box connection schematic diagram provided by the embodiment.

[0061] Referring to Figure 5 In the optional embodiment of the utility model, a first indoor grounding terminal box 17 and a second indoor grounding terminal box are further included, the first indoor grounding terminal box 17 is arranged on the wall in the high-voltage chamber 07 and is electrically connected with the wiring terminal 02, and the second indoor grounding terminal box is arranged on the wall of the secondary device chamber 08 and is electrically connected with the grounding terminal. It can be understood that this arrangement can facilitate the connection of the temporary grounding wire during the maintenance of the device.

[0062] Figure 6 The utility model discloses the wall section view of prefabricated cabin provided by the embodiment of the utility model.

[0063] Referring to Figure 6 In the optional embodiment of the utility model, the wall of the prefabricated cabin includes rock wool sandwich panels 18, rock wool 19 and corrugated boards 20 from inside to outside, and it can be understood that this arrangement can play an important technical effect in multiple dimensions such as heat preservation, heat insulation, fire prevention, structural stability, protection, sound insulation and noise reduction, and can comprehensively improve the performance and applicability of the prefabricated cabin switch station.

[0064] The prefabricated cabin switch station provided by the embodiment of the utility model has multiple advantages, and can prevent electric shock accidents caused by non-professionals and livestock when they approach during the operation stage. During the construction stage, most of the grounding work can be completed in the factory, and only the connection with the grounding net is responsible by the construction unit, which is efficient, easy to operate and controllable in construction quality. In the factory, the equipment can be shipped out only after skilled operation and grounding of the secondary equipment 11 in the factory are qualified, which can avoid electromagnetic compatibility problems in the later stage. The utility model is a prefabricated cabin switch station, which can clearly divide the work interface between the factory and the construction unit, and determine the related matters in the factory, so as to better meet the functional requirements, ensure that the safety measures are in place, save the construction period and ensure the safety of the equipment, and also improve the friendliness of the industrial environment to the organisms.

[0065] It should be noted that the technical solutions in each embodiment of the utility model can be combined with each other, but the basis for mutual combination is that it can be realized by ordinary technical personnel in the art; when the combination of technical solutions is contradictory or cannot be realized, it should be considered that the combination of technical solutions does not exist, that is, it does not belong to the protection scope of the utility model.

[0066] Finally, it should be pointed out that: the above embodiments are only used to illustrate the technical solutions of the utility model, but not to limit them; although the utility model has been described in detail with reference to the foregoing embodiments, ordinary technical personnel in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the utility model.

Claims

1. A prefabricated cabin-type switchgear station, characterized in that, The utility model relates to a prefabricated cabin body, including bottom conductive frame (01), top conductive frame (03) and a plurality of conductive vertical beam (04), bottom conductive frame (01) and top conductive frame (03) are opposite, a plurality of conductive vertical beam (04) are interval and are located between bottom conductive frame (01) and top conductive frame (03), and are located at the edge of bottom conductive frame (01) and top conductive frame (03), bottom conductive frame (01), top conductive frame (03) and a plurality of conductive vertical beam (04) are collectively surrounded and form prefabricated cabin body, and the outside of bottom conductive frame (01) is equipped with at least one terminal (02), and the terminal (02) is used for grounding.

2. The prefabricated cabin-type switchgear station according to claim 1, characterized in that, It also includes a conductive floor layer (05) laid on the top of the bottom conductive frame (01), and the conductive floor layer (05) is electrically connected with the bottom conductive frame (01).

3. The prefabricated cabin-type switchgear station according to claim 2, characterized in that, It also includes a partition wall (06) arranged inside the prefabricated cabin body, the partition wall (06) is used to separate the prefabricated cabin body into a high-voltage chamber (07) and a secondary equipment chamber (08), the high-voltage chamber (07) is arranged with a plurality of primary equipment (10), and the secondary equipment chamber (08) is arranged with a plurality of secondary equipment (11).

4. The prefabricated cabin-type switchgear station according to claim 3, characterized in that, It also includes an anti-static floor layer (09) laid on the top of the conductive floor layer (05) and located in the secondary equipment chamber (08). The base of each secondary equipment (11) is arranged between the anti-static floor layer (09) and the conductive floor layer (05) and is electrically connected with the conductive floor layer (05).

5. The prefabricated cabin switchgear station according to claim 4, characterized in that It also includes a ring-shaped anti-interference component (13) attached to the side wall of the base of each secondary equipment (11) along a ring-shaped path, and the signal equipotential grounding interface (12) of each secondary equipment (11) is respectively electrically connected with the ring-shaped anti-interference component (13), and the ring-shaped anti-interference component (13) is electrically connected with the terminal (02).

6. The prefabricated cabin-type switchgear station according to claim 5, characterized in that, The ring-shaped anti-interference component (13) includes a ring-shaped support (14), a ring-shaped equipotential copper bar (15), and a plurality of insulators (16), the ring-shaped support (14) and the ring-shaped equipotential copper bar (15) are arranged opposite to each other, and a plurality of insulators (16) are arranged interval between the ring-shaped support (14) and the ring-shaped equipotential copper bar (15). The ring-shaped support (14) and the ring-shaped equipotential copper bar (15) are laid along a ring-shaped path, the ring-shaped support (14) is used for connecting with the side wall of the base of each secondary equipment (11), the signal equipotential grounding interface (12) of each secondary equipment (11) is respectively electrically connected with the ring-shaped equipotential copper bar (15), and the ring-shaped equipotential copper bar (15) is electrically connected with the terminal (02).

7. The prefabricated cabin-type switchgear station according to claim 4, characterized in that, It also comprises a low-voltage distribution box and a plurality of low-voltage electrical equipment, the low-voltage distribution box and a plurality of the low-voltage electrical equipment are located in the secondary equipment room (08), the shell of the low-voltage distribution box and the shell of a plurality of the low-voltage electrical equipment are respectively electrically connected with the AC screen in a plurality of the secondary equipment (11).

8. A prefabricated cabin switchgear station according to any of claims 3 to 7, characterized in that The shell of each of the primary equipment (10) is respectively electrically connected with the terminal (02).

9. A prefabricated cabin switchgear station according to any of claims 1 to 7, characterized in that It also comprises a plurality of non-electric devices, a plurality of the non-electric devices are respectively arranged in the prefabricated cabin, and each of the non-electric devices is respectively electrically connected with the terminal (02).

10. A prefabricated cabin switchgear station according to any of claims 3 to 7, characterized in that It also comprises a first indoor grounding terminal box (17) and a second indoor grounding terminal box, the first indoor grounding terminal box (17) is arranged in the high-voltage chamber (07) and is electrically connected with the terminal (02); the second indoor grounding terminal box is arranged in the secondary equipment room (08) and is electrically connected with the grounding terminal.

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