CN205809134U - A kind of low capacity photovoltaic meter measuring tank - Google Patents
A kind of low capacity photovoltaic meter measuring tank Download PDFInfo
- Publication number
- CN205809134U CN205809134U CN201620790529.2U CN201620790529U CN205809134U CN 205809134 U CN205809134 U CN 205809134U CN 201620790529 U CN201620790529 U CN 201620790529U CN 205809134 U CN205809134 U CN 205809134U
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- metering device
- outfan
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- photovoltaic
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- 238000000034 method Methods 0.000 claims abstract description 9
- 230000005611 electricity Effects 0.000 claims description 8
- 238000012423 maintenance Methods 0.000 claims 1
- 238000005259 measurement Methods 0.000 abstract description 5
- 238000010276 construction Methods 0.000 abstract description 3
- 238000010248 power generation Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- APTZNLHMIGJTEW-UHFFFAOYSA-N pyraflufen-ethyl Chemical compound C1=C(Cl)C(OCC(=O)OCC)=CC(C=2C(=C(OC(F)F)N(C)N=2)Cl)=C1F APTZNLHMIGJTEW-UHFFFAOYSA-N 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
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Abstract
This utility model relates to low-voltage complete switch equipment and controls apparatus field and electric energy measuring equipment field, it is specially a kind of low capacity photovoltaic meter measuring tank, it is characterized in that being provided with casing, described casing is provided with casing input, grid side outfan, load side outfan, two set electric quantity metering device and three switches, the alternating current of photovoltaic DC-to-AC converter outfan inputs first group of electric quantity metering device through casing input, generating power for their own use, method of operation next part electric energy flows into described load side outfan, for load side；Being input to grid side outfan at surplus online method of operation next part electric energy through second group of electric quantity metering device, this utility model, by various switches and the setting of spark gap, improves safety and reliability；Photovoltaic DC-to-AC converter is arranged on outside casing so that the simple in construction of batch meter entirety, volume are little and light, and operation tube makes, it is easy to installs and safeguards, reliability is high, accurate measurement.
Description
Technical field
This utility model relates to low-voltage complete switch equipment and controls apparatus field and electric energy measuring equipment field, specifically
For a kind of low capacity photovoltaic meter measuring tank.
Background technology
Along with the development of human industry, in global warming, human ecological environment deterioration, conventional energy resource shortage of resources also
Causing under the situation of environmental pollution, the utilization of fossil energy constantly brings the pressure of each side, solar energy power generating to environment
Technology is commonly available attention and the support of national governments.Countries in the world accelerate the exploitation buying clearly new forms of energy, solar energy
Clean the features such as harmless, widely distributed because having, increasingly favored by people.Photovoltaic also becomes the most distributed
The focus of generation of electricity by new energy.Increasing resident, enterprise, school, market etc. have all been loaded onto oneself photovoltaic and have been sent out
Power station, the metering of the generated energy of photovoltaic just becomes an emphasis difficult problem.Especially National Development and Reform Committee draws up and determines encouragement photovoltaic
In the case of the electrovalence policy of generating, at present, also do not have a set of corresponding system or equipment that it is detected.China's light
Volt product meets with American-European pair and instead adjusts, and theCourse of PV Industry faces the crucial moment of huge challenge, and State Grid Corporation of China is for promoting
Domestic photovoltaic industry healthy and sustainable development, makes the encouragement photovoltaic generation industry development that makes the formal commitment, the most distributed light to society
Volt generating accesses the net engineering that connects of public electric wire net transformation and the access public electric wire net caused and is all invested by power grid enterprises.At light
At volt, load and the node of electrical network, a kind of low capacity photovoltaic meter measuring tank is installed, meets the photovoltaic generation of surplus online of generating power for their own use
The method of operation.Photovoltaic output electricity volume is fully purchased by national policy, can be from when the electric energy of photovoltaic output can not meet demand
Grid side power purchase, photovoltaic generation unit is utilized the electricity of electric company to take charge by utilizing a set of metering device by electric company
Measure and remote pre-payment trip avoidance function during forward metering can be realized.
Summary of the invention
This utility model is for shortcoming and defect present in prior art, it is proposed that one can solve the problem that existing power supply public affairs
Buying electricity and selling the low capacity photovoltaic meter measuring tank of electric metering and billing problem between department and distributed photovoltaic power generation unit.
For reaching above-mentioned purpose, the technical solution of the utility model is:
A kind of low capacity photovoltaic meter measuring tank, it is characterised in that being provided with casing, described casing is provided with casing input, electrical network
Side outfan, load side outfan, two set electric quantity metering device and three switches, the alternating current of photovoltaic DC-to-AC converter outfan is through case
Body input inputs first group of electric quantity metering device, flows into described load side at method of operation next part electric energy of generating power for their own use defeated
Go out end, for load side；It is input to electricity through second group of electric quantity metering device at surplus online method of operation next part electric energy
Net side outfan.
In this utility model between casing input and first group of Electro-metering device connect a switch, for overhaul or
Disconnecting circuit during fault, makes inverter out of service, prevents inverter from having alternating current to export；At described second group of Electro-metering
Device is connected with grid side outfan a switch, and when inverter can be prevented out of service, mains current flows into inverter；Described
First group of Electro-metering device, a switch of connecting between the node of second group of Electro-metering device and load outfan, can prevent
Only load side be short-circuited fault time excise fault in time.
The input of first group of Electro-metering device described in the utility model accesses an alternating-current lightning arrestor；Arrange lightning-arrest
Device, avoids thunderbolt for protection circuit equipment.
Electro-metering device described in the utility model include one group of current transformer, three-phase and four-line intelligent electric meter, one
Load control terminal, described casing is provided with a metering ammeter observation window, so that observing charge value；Described Electro-metering fills
Put and will carry out sample calculating by the voltage and current signal received, the generated energy of photovoltaic array can be gone out with accurate measurement；This photovoltaic meter
Measuring tank can be used for below current value 60A, the photovoltaic power generation equipment of installed capacity below 50KW；By arranging observation window, work people
Whether member can observe current electricity generation system and stablize, and understand generated energy in real time；By various switches and the setting of spark gap,
Improve safety and reliability；Photovoltaic DC-to-AC converter is arranged on outside casing so that the simple in construction of batch meter entirety, volume are little
And light, operation tube makes, it is easy to installs and safeguards, reliability is high, accurate measurement.
Accompanying drawing illustrates:
Accompanying drawing 1 is structural representation of the present utility model.
Reference: 1, inverter；2, switch；3, switch；4, switch；5, alternating-current lightning arrestor；6, metering device；7, metering
Device；8, controller；9, reactive-load compensation；10, grid side；11, load；12, casing；13, batch meter input；14, grid side
Outfan；15, load side outfan.
Detailed description of the invention:
Below in conjunction with the accompanying drawings detailed description of the invention of the present utility model is described in further detail.
As shown in drawings, the utility model proposes a kind of low capacity photovoltaic meter measuring tank, transport in difference for photovoltaic generation
Electric energy metrical under line mode, including a casing, described casing includes casing input, grid side outfan, load side are defeated
Go out end, two set metering devices 6,7 and three overlap switch 2,3,4, and the alternating current of photovoltaic DC-to-AC converter outfan flows into the input of described casing
End, then input described metering device 6；Generating power for their own use, method of operation next part electric energy flows into described load side outfan, supplies
Load side is practical；At surplus online method of operation next part electric energy through told metering device 7, then it is defeated to be input to told grid side
Go out end.
The casing input 13 of described photovoltaic asks, with metering device 6, a switch 2 of connecting；Described metering device 7 with
Grid side outfan 14 is connected one and is switched 4；Between described metering electric installation 6, the node of metering device 7 and load outfan 15
Connect one and switch 3.
The input of described metering device 6 accesses an alternating-current lightning arrestor.
Described casing is provided with a metering ammeter observation window, so that observing charge value.
The input of first group of Electro-metering device described in the utility model accesses an alternating-current lightning arrestor；Arrange lightning-arrest
Device, avoids thunderbolt for protection circuit equipment.
Electro-metering device described in the utility model include one group of current transformer, three-phase and four-line intelligent electric meter, one
Load control terminal, described casing is provided with a metering ammeter observation window, so that observing charge value；Described Electro-metering fills
Put and will carry out sample calculating by the voltage and current signal received, the generated energy of photovoltaic array can be gone out with accurate measurement；This photovoltaic meter
Measuring tank can be used for below current value 60A, the photovoltaic power generation equipment of installed capacity below 50KW；By arranging observation window, work people
Whether member can observe current electricity generation system and stablize, and understand generated energy in real time；By various switches and the setting of spark gap,
Improve safety and reliability；Photovoltaic DC-to-AC converter is arranged on outside casing so that the simple in construction of batch meter entirety, volume are little
And light, operation tube makes, it is easy to installs and safeguards, reliability is high, accurate measurement.
Claims (3)
1. a low capacity photovoltaic meter measuring tank, it is characterised in that be provided with casing, described casing is provided with casing input, grid side
Outfan, load side outfan, two set electric quantity metering device and three switches, the alternating current of photovoltaic DC-to-AC converter outfan is through casing
Input inputs first group of electric quantity metering device, flows into the output of described load side at method of operation next part electric energy of generating power for their own use
End, for load side；It is input to electrical network through second group of electric quantity metering device at surplus online method of operation next part electric energy
Side outfan.
A kind of low capacity photovoltaic meter measuring tank the most according to claim 1, it is characterised in that casing input and first group of use
One switch of series connection between electricity metering device, disconnecting circuit when maintenance or fault, make inverter out of service, prevent inversion
Device has alternating current to export；Connect with grid side outfan a switch at described second group of Electro-metering device, can prevent non-return
When change device is out of service, mains current flows into inverter；Described first group of Electro-metering device, second group of Electro-metering device
Connect between node with load outfan a switch, can prevent load side be short-circuited fault time excise fault in time.
A kind of low capacity photovoltaic meter measuring tank the most according to claim 1, it is characterised in that described first group of Electro-metering dress
The input put accesses an alternating-current lightning arrestor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620790529.2U CN205809134U (en) | 2016-07-26 | 2016-07-26 | A kind of low capacity photovoltaic meter measuring tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620790529.2U CN205809134U (en) | 2016-07-26 | 2016-07-26 | A kind of low capacity photovoltaic meter measuring tank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205809134U true CN205809134U (en) | 2016-12-14 |
Family
ID=57507303
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620790529.2U Expired - Fee Related CN205809134U (en) | 2016-07-26 | 2016-07-26 | A kind of low capacity photovoltaic meter measuring tank |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205809134U (en) |
-
2016
- 2016-07-26 CN CN201620790529.2U patent/CN205809134U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161214 Termination date: 20190726 |