CN207218052U - A kind of grid-connected distribution box of distributed photovoltaic - Google Patents
A kind of grid-connected distribution box of distributed photovoltaic Download PDFInfo
- Publication number
- CN207218052U CN207218052U CN201721088531.6U CN201721088531U CN207218052U CN 207218052 U CN207218052 U CN 207218052U CN 201721088531 U CN201721088531 U CN 201721088531U CN 207218052 U CN207218052 U CN 207218052U
- Authority
- CN
- China
- Prior art keywords
- electric energy
- fuse
- breaker
- inverter
- residual current
- 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
Abstract
Application of solar energy field is the utility model is related to, particularly discloses a kind of grid-connected distribution box of distributed photovoltaic.It includes casing and installation riser, installation riser top half is provided with electric energy meter and electric energy acquisition equipment, installation riser the latter half be provided be sequentially connected without fuse chopper switch, residual current action breaker, inverter breaker, inverter breaker connects inverter output end, the output end of residual current action breaker is sequentially connected lightning protection fuse and Surge Protector, the output head grounding row of Surge Protector, electric energy meter connects electric energy acquisition equipment, input without fuse chopper switch and electric energy meter is respectively connected to public electric wire net inlet wire.When grid maintenance or other reasonses have a power failure, residual current action breaker detects under-voltage, can ensure maintainer's safety in protection off-state, maintenance finishes meeting automatic reclosing, ensures client's income.
Description
Technical field
Application of solar energy field is the utility model is related to, more particularly to a kind of grid-connected distribution box of distributed photovoltaic.
Background technology
At present, parallel network power generation is the Main Trends of The Development of photovoltaic application, and photovoltaic generating system connects with power network
Connect and be incorporated into the power networks, there is higher generating efficiency and more preferable environmental-protecting performance, domestic small hydropower station photovoltaic exchange is grid-connected at present matches somebody with somebody
Electronic box, it is unsuitable for the demand in the grid-connected power station of small distributed of cutting-in control one, occurs in a certain square formation or inverter
It may result in overall out of service during failure, the quality of power supply and safety and stability to power network serve bad influence.
The content of the invention
The defects of the utility model is in order to make up prior art, there is provided a kind of distribution is flexible, it is low to install and use cost
The grid-connected distribution box of distributed photovoltaic.
The utility model is achieved by the following technical solution：
A kind of grid-connected distribution box of distributed photovoltaic, including casing, installation riser is installed in the casing, it is characterized in that,
The installation riser top half is provided with electric energy meter and electric energy acquisition equipment, and the installation riser the latter half is provided with
What is be sequentially connected connects without fuse chopper switch, residual current action breaker, inverter breaker, the inverter breaker
Inverter output end, the output end of the residual current action breaker are sequentially connected lightning protection fuse and surge protection
Device, the output head grounding row of Surge Protector, the electric energy meter connect electric energy acquisition equipment, the no fuse chopper switch
Public electric wire net inlet wire is respectively connected to the input of electric energy meter.
The lightning protection fuse, inverter breaker, residual current action breaker and without fuse chopper switch from
Left-to-right is arranged in order, and the Surge Protector is located at below lightning protection fuse, ranks describedly under Surge Protector
Side.
The beneficial effects of the utility model are：
1st, electric power meter and distribution box design are integrated by the utility model, shorten distribution box to electric energy meter
The distance of cable is exchanged, reduces line loss, cable unit section load is big, and cable cross-sections product is small, and cost is low, rapid heat dissipation, resistance to old
Change, raising uses the cable life-span, and because outlet cable cross-sections product is small, can be directly accessed electric energy meter, install and use letter
It is single；Residual current action breaker, can no-voltage trip, send a telegram here automatic reclosing, ensure power supply unit circuit it is safe for operation, compare
Suitable application requirement grid entry point ammeter and the familial distribution of cases formula photovoltaic plant for exchanging distribution control box one, especially suitable for room
The small-sized photovoltaic plant in top, ground, has very high practicality, can meet different power demands, according to station capacity demand
Free configuration is carried out with power demands, therefore with very strong expansion, security.
2nd, when, because when extraneous interference produces peak current or voltage suddenly, Surge Protector can be extremely short in loop
Time in conducting shunting, so as to avoid infringement of the surge to other equipment in loop, fully ensure that power supply unit circuit run
Security.
3rd, when grid maintenance or other reasonses have a power failure, residual current action breaker detects under-voltage, can be in
Off-state is protected, ensures maintainer's safety, power transmission is normal, and residual current action breaker detection is electric when grid maintenance finishes
Positive pressure is normal, automatic reclosing, ensures client's income.
Brief description of the drawings
The utility model is further described below in conjunction with the accompanying drawings：
Fig. 1 is main structure diagram of the present utility model；
Fig. 2 is attachment structure schematic diagram of the present utility model.
In figure, 1 casing, 2 installation risers, 3 public electric wire net inlet wires, 4 electric energy meters, 5 electric energy acquisition equipment, 6 lightning protection guarantor
Fuse is protected, 7 Surge Protectors, 8 inverter breakers, 9 residual current action breakers, 10 without fuse chopper switch, 11 ground
Row, 12 inverters.
Embodiment
Accompanying drawing is specific embodiment of the utility model.As shown in Figure 1 and Figure 2, the grid-connected distribution box of this kind of distributed photovoltaic,
Including casing 1, casing 1 is with cover, and lid can be dismantled, and installation riser 2, the installation of the top half of installation riser 2 are provided with casing 1
There are electric energy meter 4 and electric energy acquisition equipment 5, the latter half of installation riser 2 is sequentially installed with lightning protection fusing from left to right
Device 6, inverter breaker 8, residual current action breaker 9 and without fuse chopper switch 10, the lower section of lightning protection fuse 6 is pacified
Surge Protector 7 is filled, the lower end of Surge Protector 7 connects earthing bar 11, wherein without fuse chopper switch 10, residual current acting open circuit
Device 9, inverter breaker 8 are sequentially connected, and inverter breaker 8 connects the output end of inverter 12, residual current action breaker 9
Output end be sequentially connected lightning protection fuse 6 and Surge Protector 7, the output head grounding row 11 of Surge Protector 7, electric energy
Gauge table 4 connects electric energy acquisition equipment 5, and the input of no fuse chopper switch 10 and electric energy meter 4 is respectively connected to common electrical
Net inlet wire 3.During installation, the output end tie-in line of inverter 12 is quoted from photovoltaic solar component.
Residual current action breaker 9 can no-voltage trip, automatic reclosing of sending a telegram here, ensure power supply unit circuit operation peace
Entirely, it is especially suitable than convenient application requirement grid entry point ammeter and the familial distribution of cases formula photovoltaic plant for exchanging distribution control box one
The photovoltaic plant small-sized for roof, ground, there is very high practicality, different power demands can be met, held according to power station
Amount demand and power demands carry out free configuration, therefore with very strong expansion, security.
When, because when extraneous interference produces peak current or voltage suddenly, Surge Protector 7 can be extremely short in loop
Time in conducting shunting, so as to avoid infringement of the surge to other equipment in loop, fully ensure that power distribution circuit is safe for operation
Property.
When grid maintenance or other reasonses have a power failure, residual current action breaker detects under-voltage, can be in and protect
Off-state is protected, ensures maintainer's safety, power transmission is normal, and residual current action breaker detects voltage when grid maintenance finishes
Normally, automatic reclosing, client's income is ensured.
In addition to technical characteristic described in specification, remaining technical characteristic is technology known to those skilled in the art.
Claims (2)
1. a kind of grid-connected distribution box of distributed photovoltaic, including casing（1）, the casing（1）Installation riser is inside installed（2）, its
It is characterized in, the installation riser（2）Top half is provided with electric energy meter（4）With electric energy acquisition equipment（5）, the installation is vertical
Plate（2）The latter half be provided be sequentially connected without fuse chopper switch（10）, residual current action breaker（9）, inverter
Breaker（8）, the inverter breaker（8）Connect inverter（12）Output end, the residual current action breaker（9）'s
Output end is sequentially connected lightning protection fuse（6）And Surge Protector（7）, Surge Protector（7）Output head grounding row
（11）, the electric energy meter（4）Connect electric energy acquisition equipment（5）, the no fuse chopper switch（10）And electric energy meter
（4）Input be respectively connected to public electric wire net inlet wire.
2. the grid-connected distribution box of distributed photovoltaic according to claim 1, it is characterized in that, the lightning protection fuse（6）、
Inverter breaker（8）, residual current action breaker（9）With without fuse chopper switch（10）Array from left to right, institute
State Surge Protector（7）Positioned at lightning protection fuse（6）Lower section, arrange describedly（11）Positioned at Surge Protector（7）Lower section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721088531.6U CN207218052U (en) | 2017-08-29 | 2017-08-29 | A kind of grid-connected distribution box of distributed photovoltaic |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721088531.6U CN207218052U (en) | 2017-08-29 | 2017-08-29 | A kind of grid-connected distribution box of distributed photovoltaic |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207218052U true CN207218052U (en) | 2018-04-10 |
Family
ID=61825288
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721088531.6U Active CN207218052U (en) | 2017-08-29 | 2017-08-29 | A kind of grid-connected distribution box of distributed photovoltaic |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207218052U (en) |
-
2017
- 2017-08-29 CN CN201721088531.6U patent/CN207218052U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201623478U (en) | Photovoltaic direct-current lightning-protection header box | |
| CN103124068B (en) | A kind of anti-island protect system of distributed power generation grid-connected system and guard method thereof | |
| CN104124783B (en) | A kind of electricity getting device making somebody a mere figurehead lightning protection ground wire based on transmission line of electricity | |
| Figueira et al. | Brazilian grid-connected photovoltaic inverters standards: A comparison with IEC and IEEE | |
| CN208571394U (en) | A kind of photovoltaic power generation box-type substation based on intelligent controller | |
| CN204992611U (en) | Photovoltaic contravariant single phase alternating current and box with a net | |
| CN201562961U (en) | AC generator neutral point integrated cabinet | |
| CN206878459U (en) | A kind of electric-power metering comprehensive protection device | |
| CN202817567U (en) | Intelligent box-type wind power substation | |
| CN107769162A (en) | Generator protection tripgear based on 3/2 wiring condition power plant | |
| CN207218052U (en) | A kind of grid-connected distribution box of distributed photovoltaic | |
| KR20130002379A (en) | An effective operation method for photovoltaic power generation system through fault detect on power transmission system | |
| CN107968329A (en) | Grid-connected access case and its access system | |
| CN204696702U (en) | Grid-connected distribution box | |
| CN217956708U (en) | Photovoltaic grid-connected access system | |
| CN216215926U (en) | Distributed photovoltaic power generation system | |
| CN103580005B (en) | A kind of arc light protection method | |
| CN107732971A (en) | A kind of band bidirectional current protection distributed grid-connected access case | |
| CN207320629U (en) | A kind of distributed photovoltaic exchanges distribution control box | |
| Comech et al. | Protection in distributed generation | |
| CN105071439A (en) | Photovoltaic inversion single-phase AC grid-connected box | |
| CN206274586U (en) | Wind-powered electricity generation box type transformer | |
| CN201450318U (en) | Automatic false ground preventive low-voltage power distribution device | |
| CN207530546U (en) | Band bidirectional current protection distributed grid-connected access case | |
| CN2899225Y (en) | Break zero-loss phase protecting distribution box |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |