CN208738654U - A kind of grid-connected cabinet - Google Patents
A kind of grid-connected cabinet Download PDFInfo
- Publication number
- CN208738654U CN208738654U CN201821598080.5U CN201821598080U CN208738654U CN 208738654 U CN208738654 U CN 208738654U CN 201821598080 U CN201821598080 U CN 201821598080U CN 208738654 U CN208738654 U CN 208738654U
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- Prior art keywords
- cabinet
- grid
- breaker
- cabinet door
- knife
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Abstract
The utility model provides a kind of grid-connected cabinet, belongs to photovoltaic electric power equipment technical field.A kind of grid-connected cabinet; include cabinet body and cabinet door; the interior of the cabinet is equipped with omnipotent breaker, measures mutual inductor, breaker of plastic casing and Surge Protector; the breaker of plastic casing by conducting wire with it is small be spaced apart connect; the Surge Protector by it is described it is small be spaced apart be connected on copper bar, the interior of the cabinet is also equipped with knife-like switch, and the knife-like switch is connected with the copper bar; the interior of the cabinet is provided with measuring room, is equipped with metering transformer inside the measuring room.National grid encounters the emergencies such as line fault or power failure, and breaker meeting automatic shutdown circuit prevents photo-voltaic power supply from continuing to convey to national grid, plays the role of safeguard protection.
Description
Technical field
The utility model belongs to photovoltaic electric power equipment technical field more particularly to a kind of grid-connected cabinet.
Background technique
World's conventional energy supply is increasingly in short supply, finds new energy and has become world's hot issue, in various new energy shapes
In formula, solar power generation has the features such as pollution-free, sustainable, total amount is big, and distribution is wide, and application form is various, each by the world
The great attention of state.Wide-range will be presented in the application in photovoltaic market, and diversified trend adapts to the photovoltaic of various demands
Product will constantly come out, other than large-sized photovoltaic grid-connected photovoltaic power station, with the photovoltaic generating system that building combines, low profile photovoltaic
System, off-network photovoltaic system etc. is also by rapid rising, the demand of the grid-connected cabinet of transferring device as power grid and power station
Constantly increase.Grid-connected cabinet, the general export as photovoltaic plant are present in photovoltaic system, are connection photovoltaic plant and power grid
Power distribution equipment, main function is the separation as photovoltaic generating system and power grid.For the photovoltaic plant of low-pressure grid-connection,
The function elements such as metering, protection can also be installed in grid-connected cabinet additional.Safeguard protection is not in the grid-connected cabinet of the prior art
Enough if national grid encounters the emergencies such as line fault or power failure, safeguard protection is not in place comprehensively, may cause personnel's wound
It dies.
Utility model content
The purpose of the utility model is to provide a kind of grid-connected cabinet, it is tight that national grid encounters line fault or power failure etc.
Anxious situation, breaker meeting automatic shutdown circuit, prevents photo-voltaic power supply from continuing to convey to national grid, plays the role of safeguard protection.
The above-mentioned technical purpose of the utility model has the technical scheme that a kind of grid-connected cabinet,
Comprising cabinet body and cabinet door, the interior of the cabinet is equipped with omnipotent breaker, measures mutual inductor, breaker of plastic casing and surge protection
Device, the breaker of plastic casing by conducting wire with it is small be spaced apart connect, the Surge Protector pass through it is described it is small be spaced apart be connected to copper bar
On, the interior of the cabinet is also equipped with knife-like switch, and the knife-like switch is connected with the copper bar, and the interior of the cabinet is provided with metering
Room is equipped with metering transformer inside the measuring room.
A kind of grid-connected cabinet including cabinet body and can be used to open and close the cabinet door of the cabinet body, in the cabinet body
Portion is equipped with omnipotent breaker, is equipped with coil without tension inside the omnipotent breaker, route event occurs in national grid
When the emergencies such as barrier or power failure, prevents photo-voltaic power supply to be injected into national grid, play a protective role.The plastic housing open circuit
Device by copper conductor with it is small be spaced apart connect, the Surge Protector pass through it is described it is small be spaced apart be connected on copper bar, the knife-like switch
It is connected with the copper bar, the knife-like switch can intuitively find out whether route disconnects, and measuring room, the meter is arranged in portion on the cabinet
Metering transformer for electrical energy measurement is installed in amount room.
As the preferred of the utility model, the breaker of plastic casing passes through the photovoltaic DC-to-AC converter outside cable and the cabinet body
It is connected.
By cable connection to photovoltaic DC-to-AC converter, photovoltaic power generation passes through photovoltaic DC-to-AC converter out and first passes through the breaker of plastic casing
Grid-connected cabinet is crossed to be sent in national grid.
As the preferred of the utility model, coil without tension is installed inside the omnipotent breaker.
The coil without tension is mounted on inside omnipotent breaker, when national grid has a power failure, decompression tripping decompression first
It is acted when coil losing electricity, voltage is derived from line voltage distribution when normal work, and coil remains stationary work, coil without tension after route power loss
Lose holding voltage, coil motion, circuit breaker trip.
As the preferred of the utility model, the cabinet door surface is equipped with intelligent meter, knife-like switch handle hole, transparent observing
Window, the intelligent meter lower position are equipped with indicator light, and indicator light lower end corresponding position is equipped with button, the cabinet door lower part
It is additionally provided with venthole.
Cabinet door surface top is equipped with the intelligent meter for measuring electric current and voltage data, for operating knife-like switch
Knife-like switch handle hole, convenient for observe inner case transparent windows, for the venthole of heat dissipation, the indicator light be close point
Lock indicator light, the button are divide-shut brake button, and the cabinet door lower part is additionally provided with several ventholes for radiating, in the present apparatus
In, the venthole is tiny rectangular configuration.
As the preferred of the utility model, the cabinet door has the wicket for more fanning openable closure.
In the present invention, the cabinet door sets the wicket there are four openable closure, can correspond to behind the door convenient for inspection is small
Device.
As the preferred of the utility model, the intelligent meter is mounted on wicket corresponding with measuring room surface, institute
It states knife-like switch handle hole and is mounted on the cabinet door surface corresponding with the knife-like switch, electric degree is installed in the transparent windows
Table.
The intelligent meter is mounted on the first fan wicket, and position is corresponding with measuring room, intelligent meter for measure voltage with
And current data, data measured by the intelligent meter can be directly viewable, the knife-like switch handle hole is mounted on second from outside
It fans on wicket, can be rotated for knife-like switch described in open or close, for the separating brake and combined floodgate of knife-like switch, the kilowatt-hour meter installation
In transparent windows, the data in kilowatt-hour meter can be directly read from the external world, convenient for observation.
As the preferred of the utility model, bottom of cabinet bottom is equipped with several threading holes and several ventholes.
In the present invention, bottom of cabinet bottom is equipped with 12 threading holes and several ventholes, and threading hole can be convenient for photovoltaic
Grid-connection cabinet and extraneous disengaging cabling, venthole can be used for radiating, and cabinet door and bottom of cabinet bottom are designed with venthole in the present apparatus.
As the preferred of the utility model, set positioned at the intracorporal measuring room of the cabinet with cabinet door surface kilowatt-hour meter is located at
There is lead sealing seal.
In the present invention, the energy data in measuring room and kilowatt-hour meter is tampered in order to prevent, using lead sealing seal,
It can prevent devious conduct.
As the preferred of the utility model, the cabinet body and the cabinet door outer surface are equipped with waterproofing protection film, the waterproof
Protective film is adsorbed on the outer surface of the cabinet body Yu the cabinet door, and the waterproofing protection film is equipped with aspirating hole, the waterproofing protection
Film and the cabinet body and the cabinet door outer surface are seamless.
In the present invention, rainwater penetrates into order to prevent, is equipped with waterproofing protection film in the outer surface of cabinet body and cabinet door,
In the present apparatus, the waterproofing protection film can be adsorbed on the outer surface of the cabinet body Yu the cabinet door, on the waterproofing protection film
Equipped with aspirating hole, the aspirating hole can it is mutually embedding with air extractor and, air can by aspirating hole pass through air extractor be discharged, Zhi Daosuo
It states waterproofing protection film and the cabinet body and the cabinet door outer surface is seamless, the waterproofing protection film can effectively avoid rainwater
Infiltration.
As the preferred of the utility model, waterproof is installed above the venthole of the cabinet door lower position
Lid, the waterproof cover is that surface is arc, venthole described in the endless all standing of waterproof cover, the waterproof cover and the cabinet door
Seamless surface connection.
In the present invention, in order to further be protected to the grid-connected cabinet of the utility model, the ventilation
Waterproof cover is installed, the waterproof cover is connect with the cabinet door seamless surface above hole.The waterproof cap surface is arc, institute
State waterproof cover include the arc covers being located above venthole and be located at venthole two sides with the arc covers it is mutually embedding and side
Device, venthole described in the endless all standing of waterproof cover guarantee being normally carried out for the grid-connected cabinet heat radiation.
Detailed description of the invention
Fig. 1 is the utility model cabinet door schematic view of the front view.
Fig. 2 is the utility model cabinet body schematic view of the front view.
Fig. 3 is the utility model present invention looks up structural representation.
Fig. 4 is the utility model electrical block diagram.
In figure:
1, knife-like switch, 2, omnipotent breaker, 3, measurement mutual inductor, 4, breaker of plastic casing, 5, it is small be spaced apart, 6, surge protection
Device, 7, cabinet door, 8, intelligent meter, 9, indicator light, 10, button, 11, knife-like switch handle hole, 12, observation window, 13, venthole, 14, wear
String holes, 15, metering transformer, 16, cabinet body.
Specific embodiment
The utility model is described in further details below in conjunction with attached drawing.
This specific embodiment is only the explanation to the utility model, is not limitations of the present invention, ability
Field technique personnel can according to need the modification that not creative contribution is made to the present embodiment after reading this specification, but
As long as all by the protection of Patent Law in the scope of the claims of the utility model.
Such as a kind of Fig. 1 Fig. 2 grid-connected cabinet shown in Fig. 4, includes cabinet body 16 and cabinet door 7, be equipped with ten thousand inside cabinet body 16
Energy formula breaker 2, measures mutual inductor 3, breaker of plastic casing 44 and Surge Protector 6, and breaker of plastic casing 4 is spaced apart by conducting wire with small
5 connections, Surge Protector 6 are spaced apart 5 and are connected on copper bar by small, are also equipped with knife-like switch 1 inside cabinet body 16, knife-like switch 11 with
Copper bar is connected, and cabinet body 16 is internally provided with measuring room, and metering transformer 15 is equipped with inside measuring room.Breaker of plastic casing 4 passes through
Cable is connected with the photovoltaic DC-to-AC converter outside cabinet body 16.
A kind of grid-connected cabinet including cabinet body 16 and can be used to open and close the cabinet door 7 of cabinet body 16, inside cabinet body 16
Omnipotent breaker 2 is installed, coil without tension is installed inside omnipotent breaker 2, when national grid has a power failure, decompression tripping
First coil without tension power loss when act, voltage is derived from line voltage distribution when normal work, and coil remains stationary work, after route power loss
Coil without tension loses holding voltage, coil motion, and circuit breaker trip plays a protective role.Breaker of plastic casing 4 by copper conductor with
Small to be spaced apart 5 connections, Surge Protector 6 is spaced apart 5 and is connected by copper conductor with small, is connected on bronze medal, knife-like switch 1 and copper bar phase
Even, knife-like switch 1 can intuitively find out whether route disconnects, and measuring room is arranged on 16 top of cabinet body, is equipped with and is used in measuring room
The metering transformer 15 of electrical energy measurement.Omnipotent breaker 2 inside cabinet body 16, knife-like switch 1 measure mutual inductor 3, and plastic housing is disconnected
Road device 4, Surge Protector 6 are small to be spaced apart 5 and be all connected on the major loop that copper bar is constituted.Breaker of plastic casing 4 passes through cable connection
To photovoltaic DC-to-AC converter, photovoltaic power generation comes out to pass through photovoltaic DC-to-AC converter and first pass through grid-connected cabinet and be sent in national grid.
7 surface of cabinet door is equipped with intelligent meter 8, knife-like switch handle hole 11, transparent windows 12,8 lower position of intelligent meter dress
There is indicator light 9,9 lower end corresponding position of indicator light is equipped with button 10, kilowatt-hour meter is equipped in transparent windows 12, and cabinet door 7 has
Fan the wicket of openable closure, 7 lower part of cabinet door is additionally provided with venthole 13 more.13 position of venthole of 7 inner surface of cabinet door is equipped with anti-
Dirt net, Air Filter are equipped with adsorbent equipment, and Air Filter is equipped with airing hole.
In the present apparatus, small cabinet door 7 is equipped with four fans, and the first fan cabinet door 7 is corresponding with measuring room, the first small 7 table of cabinet door of fan
Face is equipped with the intelligent meter 8 for measuring electric current and voltage data, can directly 7 external position of cabinet door intuitively observe intelligent meter
8 numerical value are also equipped with indicator light 9 and button 10, and wherein red indicating light is switch combined floodgate indicator light, and green indicator light is separating brake
Indicator light, the green button of 9 lower section corresponding position of indicator light are switch knob, and red button is opening button, the second fan chest
Knife-like switch handle hole 11 is installed on door 7, knife-like switch handle hole 11 can operate the division of knife-like switch 1, fan small cabinet door 7 in third
On transparent observation window 12 is installed, kilowatt-hour meter is installed, kilowatt-hour meter numerical value can directly be seen from cabinet door 7 is extraneous inside observation window 12
It examines.The venthole 13 for heat dissipation is installed in 7 lower position of cabinet door, venthole 13 is tiny rectangular configuration, prevents big
The entrance of grain, can also effectively prevent sharp practice.It is equipped with Air Filter in 13 position of venthole of 7 inner surface of cabinet door,
Air Filter is set there are four adsorbent equipment in utility model device, and rainwater penetrates into order to prevent, in the appearance of cabinet body 16 and cabinet door 7
Face is equipped with waterproofing protection film, and in the present apparatus, the waterproofing protection film can be adsorbed on the outer surface of cabinet body 16 Yu cabinet door 7, anti-
Water conservation film be equipped with aspirating hole, aspirating hole can it is mutually embedding with air extractor and, air can by aspirating hole by air extractor discharge,
Until waterproofing protection film and cabinet body 16 and 7 outer surface of cabinet door are seamless, what waterproofing protection film was seamless is adsorbed on cabinet door and cabinet body
Outer surface, waterproofing protection film can effectively avoid the infiltration of rainwater, in order to further to the photovoltaic of the utility model simultaneously
Net cabinet is protected, and the top of venthole 13 is equipped with waterproof cover, and waterproof cover is connect with 7 seamless surface of cabinet door.Waterproof cap surface
For arc, waterproof cover include be located at the arc covers of 13 top of venthole and be located at 13 two sides of venthole with arc covers it is mutually embedding and
Lateral means, the endless all standing venthole 13 of waterproof cover, guarantee being normally carried out for grid-connected cabinet heat radiation.
Measuring room in cabinet body 16 is equipped with lead sealing seal with 7 surface kilowatt-hour meter of cabinet door is located at.
In the device of the utility model, the energy data in measuring room and kilowatt-hour meter is tampered in order to prevent, is used
Lead sealing seal can prevent devious conduct.
As shown in figure 3, a kind of grid-connected cabinet, bottom of cabinet bottom is equipped with several threading holes 14 and several ventholes 13.
In a device, bottom of cabinet bottom is equipped with 12 threading holes 14 and several ventholes 13, and threading hole 14 can be convenient for photovoltaic
Grid-connection cabinet and extraneous disengaging cabling, 14 quantity of threading hole is more, not fully uses, can be according to customer requirement and placement position
Determine the use position of 14 quantity of threading hole and threading hole.Venthole 13 can be used for radiating, and the venthole 13 in bottom is in tiny
Rectangular configuration.
Claims (10)
1. a kind of grid-connected cabinet includes cabinet body (16) and cabinet door (7), which is characterized in that be equipped with inside the cabinet body (16)
Omnipotent breaker (2) measures mutual inductor (3), breaker of plastic casing (4) and Surge Protector (6), the breaker of plastic casing (4)
It is connect by conducting wire with small be spaced apart (5), the Surge Protector (6) is connected on copper bar by small be spaced apart (5), the cabinet
It is also equipped with knife-like switch (1) inside body (16), the knife-like switch (1) is connected with the copper bar, and the interior of the cabinet is provided with meter
Room is measured, metering transformer (15) are installed inside the measuring room.
2. a kind of grid-connected cabinet according to claim 1, which is characterized in that the breaker of plastic casing (4) passes through cable
The photovoltaic DC-to-AC converter external with the cabinet body (16) is connected.
3. a kind of grid-connected cabinet according to claim 1, which is characterized in that peace inside the omnipotent breaker (2)
Equipped with coil without tension.
4. a kind of grid-connected cabinet according to claim 1, which is characterized in that cabinet door (7) surface is equipped with intelligence
Table (8), knife-like switch handle hole (11), transparent windows (12), the intelligent meter lower position are equipped with indicator light (9), the finger
Show that lamp lower end corresponding position is equipped with button (10), cabinet door (7) lower part is additionally provided with venthole (13).
5. a kind of grid-connected cabinet according to claim 4, which is characterized in that the cabinet door (7) has more fans are openable to close
The wicket of conjunction.
6. a kind of grid-connected cabinet according to claim 5, which is characterized in that the intelligent meter (8) be mounted on it is described
On the corresponding wicket surface of measuring room, the knife-like switch handle hole (11) is mounted on the cabinet corresponding with the knife-like switch (1)
Door (7) surface, the transparent windows (12) are interior to be equipped with kilowatt-hour meter.
7. a kind of grid-connected cabinet described in -6 any one according to claim 1, which is characterized in that bottom of cabinet bottom is equipped with several
Threading hole (14) and several ventholes (13).
8. a kind of grid-connected cabinet according to claim 7, which is characterized in that the measuring room being located in the cabinet body (16)
Lead sealing seal is equipped with the cabinet door (7) surface kilowatt-hour meter is located at.
9. a kind of grid-connected cabinet according to claim 8, which is characterized in that the cabinet body (16) and the cabinet door (7)
Outer surface is equipped with waterproofing protection film, and the waterproofing protection film is adsorbed on the outer surface of the cabinet body (16) Yu the cabinet door (7), institute
Waterproofing protection film is stated equipped with aspirating hole, the waterproofing protection film and the cabinet body (16) and the cabinet door (7) outer surface are seamless.
10. a kind of grid-connected cabinet according to claim 9, which is characterized in that be located at the cabinet door (7) lower position
Waterproof cover is installed above the venthole (13), the waterproof cover is that surface is arc, the endless all standing institute of waterproof cover
It states venthole (13), the waterproof cover is connect with the cabinet door (7) seamless surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821598080.5U CN208738654U (en) | 2018-09-29 | 2018-09-29 | A kind of grid-connected cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821598080.5U CN208738654U (en) | 2018-09-29 | 2018-09-29 | A kind of grid-connected cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208738654U true CN208738654U (en) | 2019-04-12 |
Family
ID=66034837
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821598080.5U Expired - Fee Related CN208738654U (en) | 2018-09-29 | 2018-09-29 | A kind of grid-connected cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208738654U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109149406A (en) * | 2018-09-29 | 2019-01-04 | 湖州电力设备成套有限公司 | A kind of grid-connected cabinet |
-
2018
- 2018-09-29 CN CN201821598080.5U patent/CN208738654U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109149406A (en) * | 2018-09-29 | 2019-01-04 | 湖州电力设备成套有限公司 | A kind of grid-connected cabinet |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190412 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |