CN108879761A - A kind of grid-connected cabinet of sensitivity self-resetting type - Google Patents
A kind of grid-connected cabinet of sensitivity self-resetting type Download PDFInfo
- Publication number
- CN108879761A CN108879761A CN201810655310.5A CN201810655310A CN108879761A CN 108879761 A CN108879761 A CN 108879761A CN 201810655310 A CN201810655310 A CN 201810655310A CN 108879761 A CN108879761 A CN 108879761A
- Authority
- CN
- China
- Prior art keywords
- sealing plate
- electrically connected
- electric lead
- breaker
- grid
- 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.)
- Pending
Links
- 230000035945 sensitivity Effects 0.000 title claims description 4
- 238000007789 sealing Methods 0.000 claims abstract description 52
- 230000001012 protector Effects 0.000 claims abstract description 10
- 238000005192 partition Methods 0.000 claims description 13
- 230000017525 heat dissipation Effects 0.000 claims description 10
- 230000005611 electricity Effects 0.000 claims description 5
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical group [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 3
- 238000007747 plating Methods 0.000 claims description 3
- 239000011701 zinc Substances 0.000 claims description 3
- 229910052725 zinc Inorganic materials 0.000 claims description 3
- 230000006837 decompression Effects 0.000 abstract description 5
- 238000012423 maintenance Methods 0.000 abstract description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000010248 power generation Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000001681 protective effect Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000012790 confirmation Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- H02J3/383—
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/56—Cooling; Ventilation
- H02B1/565—Cooling; Ventilation for cabinets
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
- H02H3/02—Details
- H02H3/06—Details with automatic reconnection
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
- H02H3/20—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to excess voltage
- H02H3/207—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to excess voltage also responsive to under-voltage
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Distribution Board (AREA)
Abstract
The invention discloses a kind of grid-connected cabinets of sensitive self-resetting type, including cabinet body, mounting plate, first sealing plate and the second sealing plate, mounting plate is fixedly connected on cabinet body inner sidewall, breaker of plastic casing is equipped with above first sealing plate, control brake mechanism and three-phase voltage relay, controlling brake mechanism includes automatic brake separating and automatic reclosing, breaker of plastic casing, control brake mechanism is electrically connected with three-phase voltage relay by the second electric lead, three-phase voltage relay is electrically connected with mutual inductor, breaker of plastic casing is electrically connected with the time relay and surge protector, mutual inductor, the time relay and surge protector are electrically connected to each other；Mutual inductor is electrically connected with frame circuit breaker, and frame circuit breaker is electrically connected with power supply.The present invention can provide Self-recover overvoltage-undervoltage protection, judge automatically power grid overvoltage/undervoltage, decompression, implement protection, when Network Voltage Stability, can auto-parallel, be not necessarily to manual intervention, substantially reduce the maintenance cost and administration fee of photovoltaic plant.
Description
Technical field
The present invention relates to a kind of grid-connected cabinet more particularly to a kind of grid-connected cabinets of sensitive self-resetting type.
Background technique
Grid-connected photovoltaic power generation system can by solar battery array export DC conversion be with the same width of network voltage,
With frequency, with the alternating current of phase, and realize and connect with power grid and to power grid conveying electric energy.The flexibility of this electricity generation system is,
When sunshine is stronger, extra electric energy is sent into power grid while powering to AC load by photovoltaic generating system；And work as sunshine
When deficiency, i.e. solar battery array cannot provide enough electric energy for load, and it is load supplying that electric energy can be asked for from power grid.
Parallel network power generation in reality can encounter overload, over-voltage, it is under-voltage, short-circuit a series of problems, such as, traditional is grid-connected
Cabinet provides overload and short-circuit protection using breaker, undervoltage tripping is carried out using the under-voltage coil of breaker, until network voltage is extensive
When multiple normal value, need to manually check resets, personnel's maintenance cost and administration fee is caused to increase, especially some mountain areas with
Desert region.Management cost is even more to greatly promote.In addition traditional breaker adds undervoltage trip coil, not can solve power grid over-voltage
Caused equipment overvoltage uses problem, can only rely on the overvoltage protection of inverter in route, protects single.It is domestic simultaneously also to have
The Self-recover overvoltage-undervoltage protective breaker of some integrated forms, but such integrated form overvoltage/undervoltage protective breaker overvoltage/undervoltage limits
The fixed detection unit for being unfavorable for adjusting, while being internally integrated formula overvoltage/undervoltage protective breaker can only concentrate on the dynamic touching of breaker
Head, so as to cause breaker need to pour into line, the service life substantially reduces.A kind of grid-connected cabinet of sensitive self-resetting type is proposed thus.
Summary of the invention
The purpose of the present invention is to solve the disadvantages that parallel network power generation maintenance cost in the prior art is excessively high, and propose
A kind of sensitive grid-connected cabinet of self-resetting type.
To achieve the goals above, present invention employs following technical solutions：
Design a kind of grid-connected cabinet of sensitive self-resetting type, including cabinet body, mounting plate, the first sealing plate and the second sealing plate, interior of the cabinet
Level is fixedly connected with the first sealing plate and the second sealing plate, and the first sealing plate is located above the second sealing plate, and mounting plate is fixedly connected on cabinet
On internal side wall, it is characterised in that：The second through-hole is offered in the middle part of first sealing plate and the second sealing plate, is equipped with above the first sealing plate
Breaker of plastic casing, control brake mechanism and three-phase voltage relay, control brake mechanism includes automatic brake separating and automatic reclosing, plastic housing
Breaker, control brake mechanism are electrically connected with three-phase voltage relay by the second electric lead, and three-phase voltage relay passes through first
Electric lead is electrically connected with mutual inductor, and breaker of plastic casing is electrically connected with the time relay and surge protector by the first electric lead,
Mutual inductor, the time relay and surge protector are located above the second sealing plate and are electrically connected to each other by privates electricity, first
Second through-hole of the electric lead on the first sealing plate；Mutual inductor is electrically connected with frame circuit breaker by the first electric lead, and frame is disconnected
Road device is electrically connected with power supply by the 4th electric lead, and frame circuit breaker and power supply are located at below the second sealing plate, and power supply passes through first
Electric lead is electrically connected breaker of plastic casing, three-phase voltage relay, the first electric lead, mutual inductor, the time relay, surge guarantor
Protect device, frame circuit breaker.
Preferably, the first sealing plate and the second sealing plate pass through flanging and are welded on cabinet body inner sidewall.
Preferably, the first sealing plate, the second sealing plate and mounting plate are zinc plating plate.
Preferably, cabinet body bottom wall offers several first through hole.
Preferably, bottom of cabinet bulk is fixedly connected with heat dissipation tank, and heat dissipation tank inner horizontal is fixedly connected with partition, partition top
Several third through-holes and fourth hole are offered respectively with the heat dissipation tank side wall of lower section, and partition lower end surface is fixedly connected at least 1
A heat emission fan offers several fifth holes on partition.
Preferably, fixing sleeve is equipped with insulation outside the first electric lead, the second electric lead, third electric lead, the 4th electric lead
Layer.
A kind of grid-connected cabinet of sensitive self-resetting type proposed by the present invention, beneficial effect are：Sensitive self-resetting type of the invention
Grid-connected cabinet can provide Self-recover overvoltage-undervoltage protection when solving grid-connected middle power grid overvoltage/undervoltage and decompression, judge automatically electricity
Net overvoltage/undervoltage, decompression, implement protection, when Network Voltage Stability, can auto-parallel, be not necessarily to manual intervention, substantially reduce photovoltaic
The maintenance cost and administration fee in power station.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention.
Fig. 2 is Section A-A structural schematic diagram of the invention.
Fig. 3 is section B-B structural schematic diagram of the invention.
Fig. 4 is circuit theory schematic diagram of the invention.
In figure：1- cabinet body, 2- mounting plate, the first sealing plate of 3-, the second sealing plate of 4-, 5- breaker of plastic casing, 6- three-phase voltage after
Electric appliance, the first electric lead of 7-, 8- mutual inductor, the 9- time relay, 10- surge protector, 11- frame circuit breaker, 12- power supply,
13- first through hole, the second through-hole of 14-, 15- heat dissipation tank, 16- partition, 17- third through-hole, 18- fourth hole, 19- the 5th are logical
Hole, 20- heat emission fan, 21- automatic reclosing.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.
Referring to Fig.1-4, the grid-connected cabinet of a kind of sensitive self-resetting type, including cabinet body 1, mounting plate 2, the first sealing plate 3 and second
Sealing plate 4,1 inner horizontal of cabinet body are fixedly connected with the first sealing plate 3 and the second sealing plate 4, and the first sealing plate 3 and the second sealing plate 4 pass through
Flanging is welded on 1 inner sidewall of cabinet body, and the first sealing plate 3, the second sealing plate 4 and mounting plate 2 are zinc plating plate, the first sealing plate 3
Above the second sealing plate 4, mounting plate 2 is fixedly connected on 1 inner sidewall of cabinet body, and the first sealing plate 3 and 4 middle part of the second sealing plate open up
There is the second through-hole 14, breaker of plastic casing 5, control brake mechanism 21 and three-phase voltage relay 6, control are equipped with above the first sealing plate 3
Brake mechanism 21 includes automatic brake separating and automatic reclosing, and breaker of plastic casing 5, control brake mechanism 21 and three-phase voltage relay 6 are logical
The electrical connection of the second electric lead is crossed, three-phase voltage relay 6 is electrically connected with mutual inductor 8, breaker of plastic casing 5 by the first electric lead 7
It is electrically connected with the time relay 9 and surge protector 10 by the first electric lead 7, mutual inductor 8, the time relay 9 and surge are protected
Shield device 10 is located at 4 top of the second sealing plate and is electrically connected to each other by privates electricity, and the first electric lead 7 is on the first sealing plate 3
The second through-hole 14；Mutual inductor 8 is electrically connected with frame circuit breaker 11 by the first electric lead 7, and frame circuit breaker 11 passes through the 4th
Electric lead is electrically connected with power supply 12, and frame circuit breaker 11 and power supply 12 are located at 4 lower section of the second sealing plate, and power supply 12 passes through the first conductance
Line 7 is electrically connected breaker of plastic casing 5, three-phase voltage relay 6, the first electric lead 7, mutual inductor 8, the time relay 9, surge
Protector 10, frame circuit breaker 11, the first electric lead 7, the second electric lead, third electric lead, equal fixing sleeve outside the 4th electric lead
Equipped with insulating layer.
1 bottom wall of cabinet body offers several first through hole 13.
1 bottom of cabinet body is fixedly connected with heat dissipation tank 15, and 15 inner horizontal of heat dissipation tank is fixedly connected with partition 16, on partition 16
15 side wall of heat dissipation tank of side and lower section offers several third through-holes 17 and fourth hole 18 respectively, and 16 lower end surface of partition is fixed to be connected
It is connected at least one heat emission fan 20, several fifth holes 19 are offered on partition 16.
This sensitivity self-resetting type grid-connected cabinet can provide self-resetting type when solving grid-connected middle power grid overvoltage/undervoltage and decompression
Overvoltage/undervoltage protection, judges automatically power grid overvoltage/undervoltage, decompression, implements protection, when Network Voltage Stability, can auto-parallel, be not necessarily to
Manual intervention substantially reduces the maintenance cost and administration fee of photovoltaic plant.
Invention implementation principle：Grid-connected in power generation process, three-phase voltage relay 6 induces voltage value in circuit
Height, when overtension in circuit, electric signal can be conducted to automatic brake separating, and automatic brake separating control framework breaker 11 opens
It is dynamic；When circuit voltage restores normal, whether 6 decision circuitry voltage of three-phase voltage relay reaches normally, judges that the time is
10s, confirmation restore normal voltage, and electric signal is conducted to automatic reclosing, and automatic reclosing control framework breaker 11 closes a floodgate, real
It is existing grid-connected.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
Anyone skilled in the art in the technical scope disclosed by the present invention, according to the technique and scheme of the present invention and its
Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (6)
1. a kind of grid-connected cabinet of sensitivity self-resetting type, including cabinet body（1）, mounting plate（2）, the first sealing plate（3）With the second sealing plate
（4）, the cabinet body（1）Inner horizontal is fixedly connected with the first sealing plate（3）With the second sealing plate（4）, first sealing plate（3）It is located at
Second sealing plate（4）Top, the mounting plate（2）It is fixedly connected on cabinet body（1）On inner sidewall, it is characterised in that：First envelope
Plate（3）With the second sealing plate（4）Middle part offers the second through-hole（14）, first sealing plate（3）Top is equipped with breaker of plastic casing
（5）, control brake mechanism（21）With three-phase voltage relay（6）, the control brake mechanism（21）Including automatic brake separating and automatic weight
It closes a floodgate, the breaker of plastic casing（5）, control brake mechanism（21）With three-phase voltage relay（6）It is electrically connected by the second electric lead,
The three-phase voltage relay（6）Pass through the first electric lead（7）It is electrically connected with mutual inductor（8）, the breaker of plastic casing（5）Pass through
First electric lead（7）It is electrically connected with the time relay（9）And surge protector（10）, the mutual inductor（8）, the time relay
（9）And surge protector（10）Positioned at the second sealing plate（4）It top and is electrically connected to each other by privates electricity, first conductance
Line（7）Through the first sealing plate（3）On the second through-hole（14）；The mutual inductor（8）Pass through the first electric lead（7）It is electrically connected framed
Frame breaker（11）, the frame circuit breaker（11）Power supply is electrically connected with by the 4th electric lead（12）, the frame circuit breaker
（11）With power supply（12）Positioned at the second sealing plate（4）Lower section, the power supply（12）Pass through the first electric lead（7）It is electrically connected plastic housing
Breaker（5）, three-phase voltage relay（6）, the first electric lead（7）, mutual inductor（8）, the time relay（9）, surge protector
（10）, frame circuit breaker（11）.
2. a kind of grid-connected cabinet of sensitive self-resetting type according to claim 1, it is characterised in that：First sealing plate（3）
With the second sealing plate（4）Cabinet body is welded in by flanging（1）On inner sidewall.
3. a kind of grid-connected cabinet of sensitive self-resetting type according to claim 1, it is characterised in that：First sealing plate（3）,
Second sealing plate（4）And mounting plate（2）It is zinc plating plate.
4. a kind of grid-connected cabinet of sensitive self-resetting type according to claim 1, it is characterised in that：The cabinet body（1）Bottom wall
Offer several first through hole（13）.
5. a kind of grid-connected cabinet of sensitive self-resetting type according to claim 1, it is characterised in that：The cabinet body（1）Bottom
It is fixedly connected with heat dissipation tank（15）, the heat dissipation tank（15）Inner horizontal is fixedly connected with partition（16）, the partition（16）On
The heat dissipation tank of side and lower section（15）Side wall offers several third through-holes respectively（17）And fourth hole（18）, the partition（16）
Lower end surface is fixedly connected at least one heat emission fan（20）, the partition（16）On offer several fifth holes（19）.
6. a kind of grid-connected cabinet of sensitive self-resetting type according to claim 1, it is characterised in that：First electric lead
（7）, the second electric lead, third electric lead, fixing sleeve is equipped with insulating layer outside the 4th electric lead.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810655310.5A CN108879761A (en) | 2018-06-23 | 2018-06-23 | A kind of grid-connected cabinet of sensitivity self-resetting type |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810655310.5A CN108879761A (en) | 2018-06-23 | 2018-06-23 | A kind of grid-connected cabinet of sensitivity self-resetting type |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108879761A true CN108879761A (en) | 2018-11-23 |
Family
ID=64294694
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810655310.5A Pending CN108879761A (en) | 2018-06-23 | 2018-06-23 | A kind of grid-connected cabinet of sensitivity self-resetting type |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108879761A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111010622A (en) * | 2019-12-20 | 2020-04-14 | 扬州扬吉信息科技有限公司 | Base gateway device |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2416464A2 (en) * | 2010-07-07 | 2012-02-08 | Alfonso Alberto Brito Dos Santos | Autonomous module of production, monitoring, storage, ripple and photovoltaic electric power distribution, method of communication and control management between modules when "off-grid" inserted |
| CN204578107U (en) * | 2015-03-26 | 2015-08-19 | 青岛飞鹏能源有限公司 | A kind of multi-functional combining inverter |
| CN205666448U (en) * | 2016-06-03 | 2016-10-26 | 山东克曼特电气集团有限公司 | Low -voltage distribution cabinet convenient to maintain rational in infrastructurely |
| CN206041518U (en) * | 2016-09-23 | 2017-03-22 | 苏州阳丰科技有限公司 | Intelligence cabinet that is incorporated into power networks |
| CN107968329A (en) * | 2017-11-09 | 2018-04-27 | 国网山东省电力公司临沂供电公司 | Grid-connected access case and its access system |
| CN108011309A (en) * | 2017-12-22 | 2018-05-08 | 安徽昱和自动化科技有限公司 | A kind of photovoltaic grid connection box |
| CN208062569U (en) * | 2018-03-28 | 2018-11-06 | 江苏跃腾电气有限公司 | A kind of grid-connected batch meter |
-
2018
- 2018-06-23 CN CN201810655310.5A patent/CN108879761A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2416464A2 (en) * | 2010-07-07 | 2012-02-08 | Alfonso Alberto Brito Dos Santos | Autonomous module of production, monitoring, storage, ripple and photovoltaic electric power distribution, method of communication and control management between modules when "off-grid" inserted |
| CN204578107U (en) * | 2015-03-26 | 2015-08-19 | 青岛飞鹏能源有限公司 | A kind of multi-functional combining inverter |
| CN205666448U (en) * | 2016-06-03 | 2016-10-26 | 山东克曼特电气集团有限公司 | Low -voltage distribution cabinet convenient to maintain rational in infrastructurely |
| CN206041518U (en) * | 2016-09-23 | 2017-03-22 | 苏州阳丰科技有限公司 | Intelligence cabinet that is incorporated into power networks |
| CN107968329A (en) * | 2017-11-09 | 2018-04-27 | 国网山东省电力公司临沂供电公司 | Grid-connected access case and its access system |
| CN108011309A (en) * | 2017-12-22 | 2018-05-08 | 安徽昱和自动化科技有限公司 | A kind of photovoltaic grid connection box |
| CN208062569U (en) * | 2018-03-28 | 2018-11-06 | 江苏跃腾电气有限公司 | A kind of grid-connected batch meter |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111010622A (en) * | 2019-12-20 | 2020-04-14 | 扬州扬吉信息科技有限公司 | Base gateway device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP3284169B1 (en) | Wind turbine converter control | |
| CN107979084A (en) | A kind of low-voltage direct distribution system in general-purpose aircraft distribution region | |
| CN104836124A (en) | Capacitor reactive power compensation cabinet | |
| CN104979853A (en) | Power transmission line sectioned insulating overhead ground wire multi-point power accessing system based on electromagnetic induction | |
| CN107345978A (en) | The packaged type of power plant or intelligent substation controls power supply and control method | |
| CN204118714U (en) | The alternating current-direct current mating protection device of flexible direct current transmission converter station circuit breaker | |
| CN109119975A (en) | A kind of failure protection method of the breaker of direct current system and its start-up course | |
| CN108879761A (en) | A kind of grid-connected cabinet of sensitivity self-resetting type | |
| CN204721106U (en) | Based on the power transmission line overhead ground wire electromagnetism energy taking device of super capacitor | |
| CN104158518A (en) | Self energy taking power supply device | |
| CN2591520Y (en) | Electric water heater with omnibearing electricity leakage protection function | |
| CN202977458U (en) | Intelligent PV (photovoltaic) convergence box | |
| CN216215926U (en) | Distributed photovoltaic power generation system | |
| CN209267460U (en) | DC transformer | |
| CN106357127A (en) | Box-type photovoltaic inverter | |
| CN207977738U (en) | The low-voltage direct distribution system in general-purpose aircraft distribution region | |
| CN103986341B (en) | A kind of Crowbar device and motor | |
| CN205543818U (en) | Alternating current -direct current lightning prevention box for photovoltaic power plant of family that can realize direct current side break -make | |
| CN209608611U (en) | Photovoltaic module potential induction attenuation effect inhibits device and photovoltaic system | |
| CN114285371A (en) | High-reliability intelligent monitoring communication combiner box and method for photovoltaic power generation system | |
| CN208316308U (en) | The grid-connected booster stations system of integrated photovoltaic | |
| CN203387140U (en) | Equipotential direct-current-loaded electrified ice melting device | |
| CN108683150B (en) | A kind of grid-connected cabinet of automatic reclosing exchange | |
| CN218549519U (en) | Photovoltaic combined net cage with electric energy quality monitoring device | |
| CN205986111U (en) | Modular scarce looks protection device of transformer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 230000 Fuhuang Industrial Park, Huanglu Town, Chaohu City, Hefei City, Anhui Province Applicant after: Anhui Fuhuang Electric Power Equipment Technology Co., Ltd. Address before: 230000 Private Industrial Park of Xiangyang South Road, Chaohu City, Anhui Province Applicant before: ANHUI FUHUANG ELECTRIC CONTROL EQUIPMENT CO., LTD. |
|
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20181123 |