CN206211332U - A kind of special electrical energy metering tank of distributed photovoltaic power generation - Google Patents
A kind of special electrical energy metering tank of distributed photovoltaic power generation Download PDFInfo
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- CN206211332U CN206211332U CN201621320868.0U CN201621320868U CN206211332U CN 206211332 U CN206211332 U CN 206211332U CN 201621320868 U CN201621320868 U CN 201621320868U CN 206211332 U CN206211332 U CN 206211332U
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- power generation
- photovoltaic power
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- 238000010248 power generation Methods 0.000 title claims abstract description 47
- 230000001012 protector Effects 0.000 claims abstract description 29
- 230000005540 biological transmission Effects 0.000 claims abstract description 18
- 208000035126 Facies Diseases 0.000 claims description 8
- 239000004926 polymethyl methacrylate Substances 0.000 claims description 4
- 238000007789 sealing Methods 0.000 claims description 4
- 229920005439 Perspex® Polymers 0.000 claims description 3
- 230000005611 electricity Effects 0.000 description 5
- 230000006870 function Effects 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 102100040225 Gamma-interferon-inducible lysosomal thiol reductase Human genes 0.000 description 1
- 101001037132 Homo sapiens Gamma-interferon-inducible lysosomal thiol reductase Proteins 0.000 description 1
- 229920005479 Lucite® Polymers 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000019771 cognition Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
- Y02E10/56—Power conversion systems, e.g. maximum power point trackers
Abstract
The utility model is related to a kind of special electrical energy metering tank of distributed photovoltaic power generation, belongs to electrical equipment technical field.Technical scheme is：Comprising mains supply（1）, civil power ammeter（2）, disconnecting switch（3）, customer charge（4）, power generating source（5）, generating ammeter（6）, Surge Protector（7）, contactor（8）With the overvoltage/undervoltage delay-time protector that automatically resets（9）, the mains supply（1）, civil power ammeter（2）, disconnecting switch（3）It is sequentially connected composition grid transmission device, power generating source（5）, generating ammeter（6）, contactor（8）, automatically reset overvoltage/undervoltage delay-time protector（9）Composition photovoltaic power generation apparatus are sequentially connected, grid transmission device is interconnected after end is grid-connected with photovoltaic power generation apparatus with customer charge, and power generating source passes through Surge Protector（7）Ground connection.The utility model makes distribution type photovoltaic power generation device electric energy metrical control device economic and practical, safe and reliable, easily by customer acceptance.
Description
Technical field
The utility model is related to a kind of special electrical energy metering tank of distributed photovoltaic power generation, belongs to electrical equipment technical field.
Background technology
With the progress in epoch, atmosphere pollution is on the rise, and the utilization of clean energy resource is subject at different levels groups of international community increasingly
The attention knitted, solar energy easily obtains the preferential industrial policy of country and supports as clean energy resource is not only economic and environment-friendly but also easy acquirement.
With the research and development of solar energy power generating, photovoltaic power generation grid-connecting has begun to large area penetration and promotion application in China, with it
（Such technology）Popularity, people to the cognition degree more and more higher of photovoltaic power generation technology, distributed photovoltaic power generation project with
Its simple installation, invest small, return stabilization, security is of a relatively high is favored by more and more average families, installs trend
Increased situation year by year occurs, but present circumstances is seen, domestic various regions distribution type photovoltaic power generation device electric energy metrical control sets
Standby unified standard, security, specifications and models etc. are uneven, standard disunity, grid connection security, electric network pollution, take control,
There is certain defect in anti-electricity-theft, operational management and all many-sides.
Utility model content
The utility model purpose is to provide a kind of special electrical energy metering tank of distributed photovoltaic power generation, is kept apart by using
The corollary apparatus such as pass, Surge Protector, overvoltage/undervoltage protection device, pass through distribution type photovoltaic power generation device electric energy metrical control device
Ji is applicable, safe and reliable, efficiently solves above mentioned problem present in background technology.
The technical solution of the utility model is：A kind of special electrical energy metering tank of distributed photovoltaic power generation, comprising mains supply,
Civil power ammeter, disconnecting switch, customer charge, power generating source, generating ammeter, Surge Protector, contactor and automatically reset owe
Pressure delay-time protector, the mains supply, civil power ammeter, disconnecting switch are sequentially connected and constitute grid transmission device, power generating source,
Generating ammeter, contactor, the overvoltage/undervoltage delay-time protector that automatically resets are sequentially connected composition photovoltaic power generation apparatus, grid transmission device
Interconnected with customer charge after end is grid-connected with photovoltaic power generation apparatus, power generating source is grounded by Surge Protector, contact
Device, the overvoltage/undervoltage delay-time protector that automatically resets are arranged on the grid-connected junction of grid transmission device and photovoltaic power generation apparatus, contact
The coil power of device is connected to grid side.
The mains supply, power generating source are single phase poaer supply, grid transmission device and photovoltaic power generation apparatus grid entry point and use
Band excessively stream is provided between the load of family and leaks guarantor, the head and the tail of photovoltaic power generation apparatus are respectively arranged at two ends with band overcurrent vreaker.
The mains supply, power generating source are three phase mains, grid transmission device and photovoltaic power generation apparatus grid entry point and use
The leakage of three facies tract excessively streams is provided between the load of family to protect, and three facies tract overcurrent vreakers are provided between power generating source and generating ammeter.
Warning sign is additionally provided with the disconnecting switch of the power network end of incoming cables.
The civil power ammeter, generating ammeter are provided with sealing device, perspex transparent window and handle hole.
The beneficial effects of the utility model are：Match somebody with somebody by using disconnecting switch, Surge Protector, overvoltage/undervoltage protection device etc.
Covering device, makes distribution type photovoltaic power generation device electric energy metrical control device economic and practical, safe and reliable, easily by customer acceptance.
Brief description of the drawings
The fundamental diagram that Fig. 1 is the utility model mains supply, power generating source is single phase poaer supply；
The fundamental diagram that Fig. 2 is the utility model mains supply, power generating source is three phase mains；
In figure：Mains supply 1, civil power ammeter 2, disconnecting switch 3, customer charge 4, power generating source 5, generating ammeter 6, surge
Protector 7, contactor 8, the overvoltage/undervoltage delay-time protector 9 that automatically resets, band excessively stream leakage protect the leakage of 101, three facies tract excessively streams and protect 102, band
Overcurrent vreaker 111, three facies tract overcurrent vreakers 112.
Specific embodiment
Below in conjunction with accompanying drawing, by embodiment, the utility model is described in further detail.
A kind of special electrical energy metering tank of distributed photovoltaic power generation, comprising mains supply 1, civil power ammeter 2, disconnecting switch 3, use
Family load 4, power generating source 5, generating ammeter 6, Surge Protector 7, contactor 8 and the overvoltage/undervoltage delay-time protector 9 that automatically resets, institute
State mains supply 1, civil power ammeter 2, disconnecting switch 3 be sequentially connected composition grid transmission device, power generating source 5, generating ammeter 6,
Contactor 8, the overvoltage/undervoltage delay-time protector 9 that automatically resets are sequentially connected composition photovoltaic power generation apparatus, grid transmission device and photovoltaic
TRT is interconnected after end is grid-connected with customer charge 4, and power generating source 5 is grounded by Surge Protector 7, contactor 8,
The overvoltage/undervoltage delay-time protector 9 that automatically resets is arranged on the grid-connected junction of grid transmission device and photovoltaic power generation apparatus, contactor 8
Coil power be connected to grid side.
The mains supply 1, power generating source 5 are single phase poaer supply, grid transmission device and photovoltaic power generation apparatus grid entry point with
Band excessively stream leakage is provided between customer charge 4 and protects 101, the head and the tail of photovoltaic power generation apparatus are respectively arranged at two ends with band overcurrent vreaker 111.
The mains supply 1, power generating source 5 are three phase mains, grid transmission device and photovoltaic power generation apparatus grid entry point with
The leakage of three facies tract excessively streams is provided between customer charge 4 and protects 102, the open circuit of three facies tract excessively streams is provided between power generating source 5 and generating ammeter 6
Device 112.
Warning sign is additionally provided with power network end of incoming cables disconnecting switch 3.
The civil power ammeter 2, generating ammeter 6 are provided with sealing device, perspex transparent window and handle hole.
In actual applications, specific function of the present utility model is as follows：
（One）Although the inverter of selection meets national standard, but in order to safer, prevents fault of converter and counter send
Electricity, a disconnecting switch is added in power network end of incoming cables, in power network scheduled outage, disconnecting switch is disconnected by managerial personnel, is made
The device and power network have an obvious cut-off point, and hang white background The Scarlet Letter warning sign of " circuit someone works, No switching on ", treat
When power system restoration is powered, the warning sign combined floodgate power transmission is removed by managerial personnel, played under system blackout state, physics breaks
Electricity is " dual fail-safe " out of service in itself with inverter.
（Two）To prevent the device from producing higher harmonic voltage to electric network pollution, a Surge Protector is installed additional, generate electricity system
When unified denier produces higher harmonic voltage, pollution sources are leaked into the earth by Surge Protector action, are prevented to electric network pollution.
（Three）Over voltage defencive function.
When electric network fault has a power failure, in the case that managerial personnel disconnect disconnecting switch not in time, to prevent inverter
Failure and he continues to generate electricity, the utility model is in power network and the grid-connected junction of photovoltaic power generation apparatus, plus an A.C. contactor and one
Platform automatically resets over voltage delay-time protector, and the contactor coil power supply is connected to grid side, and operation principle is as follows：
1st, in normal condition（Scheduled outage, inverter fault-free）During power failure, contactor and the overvoltage/undervoltage time delay that automatically resets
Protector 9 disconnects, and photovoltaic power generation apparatus is kept apart with power network, and when power network is sent a telegram here, contactor and the overvoltage/undervoltage that automatically resets prolong
When protector 9 automatically reset.
2nd, in abnormal condition（Electric network fault has a power failure, and fault of converter isolated island protector fails）, now photovoltaic
TRT continues to generate electricity and powered to power network, when there is the failure, is powered from photovoltaic power generation apparatus to power network, due to photovoltaic
TRT capacity very little, power grid user load is much larger than its generating capacity so that line voltage declines, contactor coil voltage
Discharged less than the 70% of rated voltage, photovoltaic power generation apparatus are separated with power network, it is ensured that safety.
（Four）For ease of taking control, plus shunt release（It is exclusively used in three-phase dynamic power family）.
（Five）For ease of management and safety, two functional areas of metering and control are divided.Function of measuring divides into power network metering
Two parts are measured with photovoltaic power generation apparatus.Control function divides into power network and photovoltaic power generation apparatus two parts.
（Six）Single-phase distribution type photovoltaic power generation device is applied to resident.
Three-phase distribution type photovoltaic power generation device is applied to three-phase user.
（Seven）To prevent stealing, function of measuring area makes sealing device.
（Eight）Used for ease of management and user, metering zone uses the well-illuminated window of lucite, and perforate in position, just
Browsed in management, telegram in reply operation.
（Nine）The utility model degree of protection reaches IP30.
It is 380V three-phases that the utility model is applied to exchange 50Hz, voltage（8-30kW）, 220V is single-phase（Below 8kW）Distribution
Formula photovoltaic power generation grid-connecting system.
Use condition is：
1st, height above sea level is less than or equal to 2 kms.
2nd, environment temperature：Subzero 55 degrees Celsius to 55 degrees Celsius above freezing.
3rd, maximum temperature difference per day：45 degrees Celsius.
4th, relative humidity is less than or equal to 95%（At 25 degrees Celsius）.
5th, intensity of sunshine：0.1w every square centimeter（During wind speed 5m/s）.
6th, maximum wind velocity is less than or equal to 35 meters per hour.
7th, ice covering thickness（Outdoor type）：10mm.
8th, gradation for surface pollution：4 grades.
9th, earthquake intensity:8 grades.
Claims (5)
1. the special electrical energy metering tank of a kind of distributed photovoltaic power generation, it is characterised in that：Comprising mains supply（1）, civil power ammeter
（2）, disconnecting switch（3）, customer charge（4）, power generating source（5）, generating ammeter（6）, Surge Protector（7）, contactor（8）With
Automatically reset overvoltage/undervoltage delay-time protector（9）, the mains supply（1）, civil power ammeter（2）, disconnecting switch（3）It is sequentially connected group
Into grid transmission device, power generating source（5）, generating ammeter（6）, contactor（8）, automatically reset overvoltage/undervoltage delay-time protector（9）
Composition photovoltaic power generation apparatus are sequentially connected, grid transmission device is with photovoltaic power generation apparatus in the grid-connected rear and customer charge in end（4）
Interconnect, power generating source（5）By Surge Protector（7）Ground connection, contactor（8）, automatically reset overvoltage/undervoltage delay-time protector
（9）It is arranged on the grid-connected junction of grid transmission device and photovoltaic power generation apparatus, contactor（8）Coil power be connected to power network
Side.
2. the special electrical energy metering tank of a kind of distributed photovoltaic power generation according to claim 1, it is characterised in that：The civil power
Power supply（1）, power generating source（5）It is single phase poaer supply, grid transmission device and photovoltaic power generation apparatus grid entry point and customer charge（4）It
Between be provided with band excessively stream leak protect（101）, the head and the tail of photovoltaic power generation apparatus are respectively arranged at two ends with band overcurrent vreaker（111）.
3. the special electrical energy metering tank of a kind of distributed photovoltaic power generation according to claim 1, it is characterised in that：The civil power
Power supply（1）, power generating source（5）It is three phase mains, grid transmission device and photovoltaic power generation apparatus grid entry point and customer charge（4）It
Between be provided with three facies tract excessively streams leakage protect（102）, power generating source（5）With generating ammeter（6）Between be provided with three facies tract overcurrent vreakers
（112）.
4. the special electrical energy metering tank of a kind of distributed photovoltaic power generation according to claim 1, it is characterised in that：The power network
End of incoming cables disconnecting switch（3）Place is additionally provided with warning sign.
5. the special electrical energy metering tank of a kind of distributed photovoltaic power generation according to claim 1, it is characterised in that：The civil power
Ammeter（2）, generating ammeter（6）It is provided with sealing device, perspex transparent window and handle hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621320868.0U CN206211332U (en) | 2016-12-05 | 2016-12-05 | A kind of special electrical energy metering tank of distributed photovoltaic power generation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621320868.0U CN206211332U (en) | 2016-12-05 | 2016-12-05 | A kind of special electrical energy metering tank of distributed photovoltaic power generation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206211332U true CN206211332U (en) | 2017-05-31 |
Family
ID=58754428
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621320868.0U Active CN206211332U (en) | 2016-12-05 | 2016-12-05 | A kind of special electrical energy metering tank of distributed photovoltaic power generation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206211332U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109787122A (en) * | 2019-01-27 | 2019-05-21 | 胡佳 | A kind of photovoltaic power generation electric metering box |
| CN110033966A (en) * | 2019-04-20 | 2019-07-19 | 国网湖北省电力有限公司咸宁供电公司 | Decompression suspension blocking device |
-
2016
- 2016-12-05 CN CN201621320868.0U patent/CN206211332U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109787122A (en) * | 2019-01-27 | 2019-05-21 | 胡佳 | A kind of photovoltaic power generation electric metering box |
| CN110033966A (en) * | 2019-04-20 | 2019-07-19 | 国网湖北省电力有限公司咸宁供电公司 | Decompression suspension blocking device |
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