CN223079596U - Photovoltaic grid-connected box - Google Patents
Photovoltaic grid-connected box Download PDFInfo
- Publication number
- CN223079596U CN223079596U CN202422259964.XU CN202422259964U CN223079596U CN 223079596 U CN223079596 U CN 223079596U CN 202422259964 U CN202422259964 U CN 202422259964U CN 223079596 U CN223079596 U CN 223079596U
- Authority
- CN
- China
- Prior art keywords
- room
- box
- box body
- photovoltaic grid
- photovoltaic
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Photovoltaic Devices (AREA)
Abstract
本实用新型公开了一种光伏并网箱，包括箱体，箱体表面通过铰链铰接有柜门且柜门表面与箱体的闭合处设有防水密封圈，箱体顶部内通过第一隔板分隔有安装室和表室，安装室内设有若干安装支架，表室内安装有计量接线盒，箱体底部内通过第二隔板分隔有开关室和接电室，开关室内安装有用于使电路断开的刀闸，接电室内安装有第一断路器，光伏并网箱适用于地面集中式、地面组串式、地面分布式等安装需求，光伏并网箱结构紧凑，配备了标准化的保护组件，如第一断路器、第二断路器、刀闸、浪涌保护器等，能够对光伏组件发出的直流电进行安全监测和保护，能够保障光伏系统在维护、故障、检查时易于切断电路，以确保系统稳定运行和人身安全。
The utility model discloses a photovoltaic grid-connected box, comprising a box body, a cabinet door is hinged on the surface of the box body, and a waterproof sealing ring is provided at the closing position between the cabinet door surface and the box body, an installation room and a meter room are separated by a first partition in the top of the box body, a plurality of installation brackets are arranged in the installation room, a metering junction box is installed in the meter room, a switch room and a power connection room are separated by a second partition in the bottom of the box body, a knife switch for disconnecting the circuit is installed in the switch room, and a first circuit breaker is installed in the power connection room. The photovoltaic grid-connected box is suitable for ground centralized, ground string, ground distributed and other installation requirements, the photovoltaic grid-connected box has a compact structure, and is equipped with standardized protection components, such as a first circuit breaker, a second circuit breaker, a knife switch, a surge protector, etc., which can safely monitor and protect the direct current emitted by the photovoltaic components, and can ensure that the photovoltaic system is easy to cut off the circuit during maintenance, failure and inspection to ensure stable operation of the system and personal safety.
Description
Technical Field
The utility model belongs to the technical field of photovoltaic grid-connected boxes, and particularly relates to a photovoltaic grid-connected box.
Background
The photovoltaic grid-connected cabinet is power interface equipment for a solar photovoltaic power station, has the functions of power distribution, electric energy metering, protection control and the like, can integrate electric energy generated by a solar photovoltaic power generation system into a power grid, and provides safe and stable power output.
The existing photovoltaic grid-connected cabinet generally comprises a photovoltaic inverter, a power protection switch communication module and the like, direct current generated by a photovoltaic panel at the top of the photovoltaic grid-connected cabinet is converted into alternating current through the photovoltaic inverter so as to meet the requirement of a power grid, but huge short-circuit current can be generated in the photovoltaic grid-connected cabinet if short-circuit occurs between photovoltaic modules or other electrical equipment, and when the protection measures in the photovoltaic grid-connected cabinet are not timely found, the photovoltaic modules, connecting cables and other related equipment can be burnt, so that the equipment is damaged.
Disclosure of utility model
The utility model aims to provide a photovoltaic grid-connected box so as to solve the problems in the background technology.
In order to achieve the above purpose, the utility model provides a photovoltaic grid-connected box, comprising:
The box, the box surface has cabinet door and cabinet door surface and the closure department of box through the hinge is equipped with waterproof sealing circle, separate through first baffle in the box top has installation room and table room, be equipped with a plurality of installing support that are used for installing the mutual-inductor in the installation room, install the measurement terminal box in the table room, separate switch room and electric room that meets through the second baffle in the bottom half, install the switch that is used for making circuit disconnection in the switch room, install first circuit breaker in the electric room that meets.
Preferably, an electric energy meter is installed in the meter room, and a surge protector and a second circuit breaker are also installed in the power receiving room.
Preferably, the surface of the box body and the bottoms of the switch chamber and the power connection chamber are provided with wire inlet holes.
Preferably, the top of the box body is provided with a top cover, and the surface of the top cover is provided with a ventilation screen plate.
Preferably, the two side surfaces of the box body are connected with a plurality of fixing lugs.
Preferably, the surface of the cabinet door is provided with a transparent window.
Compared with the prior art, the photovoltaic grid-connected box has the beneficial effects that the photovoltaic grid-connected box is suitable for alternating current 50Hz of power users such as ground centralized type, ground serial type, ground distributed type and the like, has 380V rated working voltage and 2000A rated working current, is used for electric energy conversion, distribution and control of power, lighting and distribution equipment, has a compact structure, is provided with standardized protection components such as a first circuit breaker, a second circuit breaker, a disconnecting link, a surge protector and the like, can safely monitor and protect direct current emitted by the photovoltaic components, and can ensure that the photovoltaic system is easy to cut off circuits during maintenance, failure and inspection so as to ensure stable operation and personal safety of the system.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a cross-sectional view of the present utility model;
Fig. 3 is a side view of the present utility model.
In the figure, 1, a box body; 2, a cabinet door, 3, a first partition board, 4, a mounting chamber, 5, a meter chamber, 6, a mounting bracket, 7, a metering junction box, 8, a second partition board, 9, a switch chamber, 10, a power connection chamber, 11, a disconnecting link, 12, a first circuit breaker, 13, an electric energy meter, 14, a surge protector, 15, a second circuit breaker, 16, a wire inlet hole, 17, a top cover, 18, a ventilation screen, 19, a fixed lug, 20 and a transparent window.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
The present utility model provides a photovoltaic grid-tie box as shown in fig. 1-3, comprising:
The box 1, the box 1 surface has cabinet door 2 and cabinet door 2 surface and the closure department of box 1 through the hinge is equipped with waterproof sealing circle, install installation room 4 and table room 5 through first baffle 3 in the box 1 top, be equipped with a plurality of installing support 6 that are used for installing the mutual-inductor in the installation room 4, install measurement terminal box 7 in the table room 5, it has switch chamber 9 and electric room 10 to separate through second baffle 8 in the box 1 bottom, install the switch 11 that is used for making circuit disconnection in the switch chamber 9, install first circuit breaker 12 in the electric room 10.
The electric energy meter 13 is installed in the meter room 5, the electric energy meter 13 can accurately measure the electric energy generated by the photovoltaic system, a user can clearly know the power generation efficiency and the performance of the photovoltaic system through accurately measuring the generated energy, the surge protector 14 and the second circuit breaker 15 are also installed in the electricity receiving room 10, and the photovoltaic grid-connected box is usually installed outdoors and is easily influenced by lightning stroke, and the surge protector 14 can rapidly introduce strong lightning current into the earth when the lightning stroke occurs, so that electrical equipment in the photovoltaic grid-connected box is protected from being damaged by the lightning stroke;
The first breaker 12 and the second breaker 15 adopt professional direct current high voltage breakers, and the direct current withstand voltage value is not lower than DC1000V, so that the safety and reliability are realized.
The surface of the box body 1 and the bottoms of the switch chamber 9 and the power receiving chamber 10 are respectively provided with a wire inlet 16, a specific channel can be provided for an external power wire and a signal wire to enter the box body 1 through the arrangement of the wire inlet 16, the wire inlet 16 is arranged at the bottoms of the switch chamber 9 and the power receiving chamber 10, a circuit can enter from the lower part and is connected with equipment in the box body 1, and the circuit is prevented from being distributed around the box body 1 in disorder.
The top of the box body 1 is provided with a top cover 17, the surface of the top cover 17 is provided with a ventilation screen 18, ventilation holes are formed in the top cover 17, and wind entering through the ventilation screen 18 blows into the ventilation holes and into the box body 1 through the ventilation holes, so that heat dissipation can be carried out on equipment in the box body 1.
The two side surfaces of the box body 1 are connected with a plurality of fixing lugs 19, and the box body 1 can be installed by penetrating the fixing lugs 19 through bolts.
The surface of the cabinet door 2 is provided with a transparent window 20, and an operator can intuitively observe the running state of the internal equipment of the photovoltaic grid-connected box under the condition that the cabinet door 2 is not opened through the transparent window 20 so as to discover abnormal conditions in time.
The photovoltaic grid-connected box has the advantages that the structure in the box body 1 is compact, multiple paths of solar photovoltaic arrays can be simultaneously connected, the maximum current of each path can reach 11A, different user demands can be met, the sensor and the monitoring display module can be configured according to the demands to measure and monitor the current of each path, the running condition can be recorded and displayed remotely, the situation of going to the site is not needed, the remote control, professional data monitoring and fault diagnosis on a power station are convenient, and the running efficiency and the management effect of the power station can be greatly improved;
The standardized protection components such as the first circuit breaker 12, the second circuit breaker 15, the disconnecting link 11, the surge protector 14 and the like are provided, so that the direct current emitted by the photovoltaic component can be safely monitored and protected, the circuit of the photovoltaic system can be easily cut off during maintenance, fault and inspection, the equipment of the box body 1 is very convenient to install and debug on site in a plug-in connection mode, meanwhile, the internal components are reasonably distributed, and the later maintenance and upgrading are convenient;
The power input of the photovoltaic system is controlled through the first breaker 12 and the second breaker 15, the direct current emitted by the photovoltaic module is controlled to be on-off, when the photovoltaic system has faults such as overcurrent and short circuit, the circuit can be automatically tripped and cut off, so that system equipment and circuits are protected, then an operator can operate the disconnecting link 11 to completely isolate the photovoltaic system from the power source, an obvious disconnection point is provided, safety is ensured, safety of the equipment is protected, the surge protector 14 automatically acts when overvoltage impacts (such as transient overvoltage such as lightning) exist, the overvoltage is introduced into the ground, the system equipment is protected, and if the overvoltage continuously exists or the surge protector 14 is damaged, the circuit can be automatically disconnected through the first breaker 12 and the second breaker 15, so that the further damage to the system caused by the overvoltage is prevented, the circuit is automatically tripped and the circuit is cut off through the first breaker 12 and the second breaker 15, and the system equipment is protected.
It should be noted that the foregoing description is only a preferred embodiment of the present utility model, and although the present utility model has been described in detail with reference to the foregoing embodiments, it should be understood that modifications, equivalents, improvements and modifications to the technical solution described in the foregoing embodiments may occur to those skilled in the art, and all modifications, equivalents, and improvements are intended to be included within the spirit and principle of the present utility model.
Claims (6)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202422259964.XU CN223079596U (en) | 2024-09-14 | 2024-09-14 | Photovoltaic grid-connected box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202422259964.XU CN223079596U (en) | 2024-09-14 | 2024-09-14 | Photovoltaic grid-connected box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN223079596U true CN223079596U (en) | 2025-07-08 |
Family
ID=96246686
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202422259964.XU Active CN223079596U (en) | 2024-09-14 | 2024-09-14 | Photovoltaic grid-connected box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN223079596U (en) |
-
2024
- 2024-09-14 CN CN202422259964.XU patent/CN223079596U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN208571394U (en) | A kind of photovoltaic power generation box-type substation based on intelligent controller | |
| CN104124916B (en) | High aititude photovoltaic plant electric network fault simulated testing system mobile detection apparatus | |
| CN119542969A (en) | A compact shared box type environmentally friendly gas ring main cabinet and working method | |
| CN217956708U (en) | Photovoltaic grid-connected access system | |
| CN107732971A (en) | A kind of band bidirectional current protection distributed grid-connected access case | |
| CN207124607U (en) | A kind of photovoltaic conflux box | |
| CN220107590U (en) | Switching device and wind power system | |
| CN210723900U (en) | Centralized ammeter case convenient to management and control just have power compensation function | |
| CN108695753A (en) | Integral intelligent photovoltaic substation | |
| CN206564572U (en) | A kind of photovoltaic generation header box | |
| CN217543218U (en) | Miniature circuit breaker anti-electricity-stealing protective cover for single-phase electric energy meter box | |
| CN218888153U (en) | Photovoltaic grid-connected control and isolation device | |
| CN207114668U (en) | Photovoltaic combining inverter test switch cubicle | |
| CN217882390U (en) | Cabinet converges suitable for high-pressure energy storage system | |
| CN216648937U (en) | Low-voltage switchgear based on thing networking control | |
| CN206401905U (en) | Low-voltage distributed photovoltaic multi-functional network connection device | |
| CN206697889U (en) | A kind of port case for bus duct | |
| CN117220139A (en) | A three-winding booster box-type transformer device dedicated to the site of the same scenery and photovoltaic project | |
| CN223898108U (en) | High-voltage grid-connected transformer for power generation | |
| CN208386124U (en) | A neutral point drift protection device | |
| CN218335955U (en) | Floor-standing primary and secondary fusion 10 kV distributed photovoltaic grid-connected monitoring device | |
| CN216117757U (en) | Ammeter case device that can monitor overvoltage | |
| CN201450318U (en) | Automatic false ground preventive low-voltage power distribution device | |
| CN223967540U (en) | Photovoltaic grid-connected box | |
| CN224138522U (en) | A new type of photovoltaic grid-connected cabinet |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |