CN106253087B - A smart ring network cabinet - Google Patents
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- CN106253087B CN106253087B CN201610714939.3A CN201610714939A CN106253087B CN 106253087 B CN106253087 B CN 106253087B CN 201610714939 A CN201610714939 A CN 201610714939A CN 106253087 B CN106253087 B CN 106253087B
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- 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
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/30—Cabinet-type casings; Parts thereof or accessories therefor
- H02B1/308—Mounting of cabinets together
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B13/00—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle
- H02B13/02—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle with metal casing
- H02B13/035—Gas-insulated switchgear
- H02B13/045—Details of casing, e.g. gas tightness
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- H02J13/0062—
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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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02B90/20—Smart grids as enabling technology in buildings sector
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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
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S40/00—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
- Y04S40/12—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment
- Y04S40/124—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment using wired telecommunication networks or data transmission busses
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Abstract
Description
技术领域technical field
本发明涉及电子电力技术领域,特别是涉及一种智能环网柜。The invention relates to the technical field of electronic power, in particular to an intelligent ring network cabinet.
背景技术Background technique
环网柜(Ring Main Unit)是一组输配电气设备(高压开关设备)装在金属或非金属绝缘柜体内或做成拼装间隔式环网供电单元的电气设备,其核心部分采用负荷开关和熔断器,具有结构简单、体积小、价格低、可提高供电参数和性能以及供电安全等优点。它被广泛使用于城市住宅小区、高层建筑、大型公共建筑和工厂企业等负荷中心的配电站以及箱式变电站中。Ring Main Unit (Ring Main Unit) is a group of transmission and distribution electrical equipment (high-voltage switchgear) installed in a metal or non-metallic insulated cabinet or made into an assembled interval ring network power supply unit. Its core part adopts load switches and The fuse has the advantages of simple structure, small size, low price, improved power supply parameters and performance, and power supply safety. It is widely used in distribution stations and box-type substations of load centers such as urban residential quarters, high-rise buildings, large public buildings and factories and enterprises.
现有环网柜对配电终端模块DTU依赖性很强,而配电终端模块DTU的传统架构是核心单元加外围部件,并配备后备电源及通信模块,配电终端模块DTU的集成度不高,如遇配电终端模块DTU故障,大大影响环网柜的可靠性。The existing ring main unit is highly dependent on the power distribution terminal module DTU, and the traditional structure of the power distribution terminal module DTU is a core unit plus peripheral components, and is equipped with a backup power supply and a communication module. The integration degree of the power distribution terminal module DTU is not high , In case of DTU failure of the power distribution terminal module, it will greatly affect the reliability of the ring network cabinet.
发明内容Contents of the invention
基于此,有必要针对环网柜的可靠性的问题,提供一种智能环网柜。Based on this, it is necessary to provide an intelligent ring network cabinet for the reliability of the ring network cabinet.
一种智能环网柜,包括多个分布式单元;每个分布式单元包括:仪表室,所述仪表室内设置有集成芯片化配电终端模块DTU;各个分布式单元的集成芯片化配电终端模块DTU彼此通信连接,其中至少两个分布式单元的集成芯片化配电终端模块DTU还连接至配网主站;将连接至配网主站的集成芯片化配电终端模块DTU作为汇总DTU,汇总DTU之外的集成芯片化配电终端模块DTU将各自信息发送到对应的汇总DTU,汇总DTU将接收的信息和自身信息发送到配网主站。An intelligent ring network cabinet, including a plurality of distributed units; each distributed unit includes: an instrument room, the instrument room is provided with an integrated chip-based power distribution terminal module DTU; the integrated chip-based power distribution terminal of each distributed unit The module DTUs are connected to each other by communication, wherein the integrated chip-based power distribution terminal module DTU of at least two distributed units is also connected to the distribution network master station; the integrated chip-based power distribution terminal module DTU connected to the distribution network master station is used as a summary DTU, The integrated chip-based power distribution terminal module DTU other than the summary DTU sends its own information to the corresponding summary DTU, and the summary DTU sends the received information and its own information to the distribution network master station.
通过上述技术方案的智能环网柜,每个分布式单元配置有集成芯片化配电终端模块DTU,各个分布式单元的集成芯片化配电终端模块DTU彼此通信连接,提高环网柜可靠性,使环网柜具备测控与保护功能,完全实现环网柜的配电自动化。Through the intelligent ring network cabinet of the above technical solution, each distributed unit is equipped with an integrated chip-based power distribution terminal module DTU, and the integrated chip-based power distribution terminal module DTU of each distributed unit communicates with each other to improve the reliability of the ring network cabinet. Make the ring network cabinet have measurement, control and protection functions, and fully realize the power distribution automation of the ring network cabinet.
附图说明Description of drawings
图1为一实施例的一种智能环网柜的示意性结构图;Fig. 1 is a schematic structural diagram of a kind of intelligent ring network cabinet of an embodiment;
图2为图1中一个分布式单元的示意性结构图。FIG. 2 is a schematic structural diagram of a distributed unit in FIG. 1 .
具体实施方式Detailed ways
为了更进一步阐述本发明所采取的技术手段及取得的效果,下面结合附图及较佳实施例,对本发明的技术方案,进行清楚和完整的描述。In order to further illustrate the technical means adopted by the present invention and the achieved effects, the technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings and preferred embodiments.
图1为一实施例的一种智能环网柜的示意性结构图。Fig. 1 is a schematic structural diagram of an intelligent ring network cabinet according to an embodiment.
如图1所示,一种智能环网柜,包括多个分布式单元1、2...N(N>2);每个分布式单元包括:仪表室101,所述仪表室101内设置有集成芯片化配电终端模块DTU100;各个分布式单元的集成芯片化配电终端模块DTU彼此通信连接,其中至少两个分布式单元的集成芯片化配电终端模块DTU还连接至配网主站;将连接至配网主站的集成芯片化配电终端模块DTU作为汇总DTU,汇总DTU之外的各集成芯片化配电终端模块DTU将各自信息发送到对应的汇总DTU,汇总DTU将所有信息发送到配网主站。As shown in Figure 1, an intelligent ring network cabinet includes a plurality of distributed units 1, 2...N (N>2); each distributed unit includes: an instrument room 101, the instrument room 101 is set There is an integrated chip-based power distribution terminal module DTU100; the integrated chip-based power distribution terminal modules DTU of each distributed unit are connected to each other by communication, and the integrated chip-based power distribution terminal module DTUs of at least two distributed units are also connected to the main station of the distribution network ;The integrated chip-based power distribution terminal module DTU connected to the main station of the distribution network is used as a summary DTU, and each integrated chip-based power distribution terminal module DTU other than the summary DTU sends its respective information to the corresponding summary DTU, and the summary DTU sends all information Send to the distribution network master station.
作为一优选实施例,各个分布式单元的集成芯片化配电终端模块DTU彼此通过以太网或RS-485总线通信连接。As a preferred embodiment, the integrated chip-based power distribution terminal modules DTU of each distributed unit are connected to each other through Ethernet or RS-485 bus communication.
本实施例中,各个分布式单元的集成芯片化配电终端模块DTU和配网主站采用汇主备方案,即:将连接至配网主站的集成芯片化配电终端模块DTU作为汇总DTU;汇总DTU之外的各个分布式单元的集成芯片化配电终端模块DTU将各自信息发送到对应的汇总DTU,汇总DTU将接收的信息和自身信息发送到配网主站。In this embodiment, the integrated chip-based power distribution terminal module DTU of each distributed unit and the master station of the distribution network adopt the master-slave scheme, that is, the integrated chip-based power distribution terminal module DTU connected to the master station of the distribution network is used as a summary DTU ; The integrated chip distribution terminal module DTU of each distributed unit other than the summary DTU sends their respective information to the corresponding summary DTU, and the summary DTU sends the received information and its own information to the master station of the distribution network.
作为一优选实施例,智能环网柜的每个分布式单元的各个隔室的结构在设计上满足正常使用条件和限制隔室内部电弧影响的要求,能防止因本身缺陷、异常使用或误操作导致的电弧伤及工作人员,并能限制电弧的燃烧范围,环网柜有防止人为造成内部故障的措施。As a preferred embodiment, the structure of each compartment of each distributed unit of the intelligent ring network cabinet is designed to meet the requirements of normal use conditions and limit the influence of arcs inside the compartment, and can prevent defects due to its own defects, abnormal use or misoperation The resulting arc can hurt the staff and can limit the burning range of the arc. The ring network cabinet has measures to prevent internal faults caused by man.
本实施例的环网柜中,每个分布式单元均配置有集成芯片化配电终端模块DTU,各个分布式单元的集成芯片化配电终端模块DTU彼此通信连接,提高环网柜的可靠性,使环网柜具备测控与保护功能,完全实现环网柜的配电自动化。In the ring network cabinet of this embodiment, each distributed unit is equipped with an integrated chip-based power distribution terminal module DTU, and the integrated chip-based power distribution terminal module DTUs of each distributed unit are connected to each other through communication to improve the reliability of the ring network cabinet , so that the ring network cabinet has the function of measurement, control and protection, and fully realizes the power distribution automation of the ring network cabinet.
图2为图1中一个分布式单元的示意性结构图。FIG. 2 is a schematic structural diagram of a distributed unit in FIG. 1 .
如图2所示,一个分布式单元包括:仪表室200、电缆室201、电源室202、充气隔室203、进出母线204、真空负荷开关(第一开关本体)205、接地开关(第二开关本体)206和压力释放通道207;所述仪表室200内设置有集成芯片化配电终端模块DTU;所述仪表室200位于充气隔室203的上方。As shown in Figure 2, a distributed unit includes: an instrument room 200, a cable room 201, a power supply room 202, an inflatable compartment 203, an incoming and outgoing bus bar 204, a vacuum load switch (the first switch body) 205, a grounding switch (the second switch body) 206 and a pressure release channel 207; the instrument chamber 200 is provided with an integrated chip power distribution terminal module DTU; the instrument chamber 200 is located above the inflatable compartment 203.
作为一优选实施例,所述电缆室201和压力释放通道207位于充气隔室203的下方;更进一步的,所述电缆室201位于充气隔室203的底部前方;所述压力释放通道位于充气隔室203的底部后方。As a preferred embodiment, the cable chamber 201 and the pressure release channel 207 are located below the inflatable compartment 203; further, the cable chamber 201 is located in front of the bottom of the inflatable compartment 203; the pressure release channel is located in the inflatable compartment The bottom rear of chamber 203.
作为一优选实施例,所述仪表室200内设置有温度传感器和温度采集器:所述温度传感器设置在仪表室200内的各相电缆的电缆头内部;所述温度传感器和温度采集器连接,所述温度采集器还和所述仪表室200内的集成芯片化配电终端模块DTU连接。更进一步的,温度传感器是无源无线温度传感器,设置在电缆室中各相电缆的电缆头内,无源无线温度传感器通过ZigBee2.4G无线网络连接到所述温度采集器,温度采集器通过RS-485通讯接口连接到芯片化DTU,测温范围为-55℃~125℃。As a preferred embodiment, the instrument room 200 is provided with a temperature sensor and a temperature collector: the temperature sensor is arranged inside the cable head of each phase cable in the instrument room 200; the temperature sensor is connected to the temperature collector, The temperature collector is also connected to the integrated chip-based power distribution terminal module DTU in the instrument room 200 . Furthermore, the temperature sensor is a passive wireless temperature sensor, which is arranged in the cable head of each phase cable in the cable room. The passive wireless temperature sensor is connected to the temperature collector through the ZigBee2.4G wireless network, and the temperature collector is connected to the temperature collector through RS The -485 communication interface is connected to the chip DTU, and the temperature measurement range is -55°C to 125°C.
作为一优选实施例,所述仪表室200内设置有湿度传感器和冷凝板:所述湿度传感器和冷凝板分别通过RS-485通讯接口和所述仪表室内的集成芯片化配电终端模块DTU连接。As a preferred embodiment, the instrument room 200 is provided with a humidity sensor and a condensation plate: the humidity sensor and the condensation plate are respectively connected to the integrated chip-based power distribution terminal module DTU in the instrument room through the RS-485 communication interface.
作为一优选实施例,所述充气隔室203内安装有真空负荷开关205、接地开关206和进出母线204;所述真空负荷开关205上安装有电流互感器和电压互感器,所述电流互感器和电压互感器是电子式电流互感器和电子式电压互感器;所述电流互感器和电压互感器分别和其所在的分布式单元的集成芯片化配电终端模块DTU连接,实现对分合闸节点采样。As a preferred embodiment, a vacuum load switch 205, a grounding switch 206, and an incoming and outgoing bus bar 204 are installed in the inflatable compartment 203; a current transformer and a voltage transformer are installed on the vacuum load switch 205, and the current transformer The voltage transformer and voltage transformer are electronic current transformers and electronic voltage transformers; the current transformers and voltage transformers are respectively connected to the integrated chip-based power distribution terminal module DTU of the distributed unit where they are located, to realize splitting and closing Node sampling.
作为一优选实施例,充气隔室203的底部位置安装有压力释放装置,所述压力释放装置为防爆膜。As a preferred embodiment, a pressure release device is installed at the bottom of the inflatable compartment 203, and the pressure release device is an explosion-proof membrane.
作为一优选实施例,所述充气隔室203外还设置有用于操动所述真空负荷开关205和接地开关206的操动机构;所述操动机构为弹簧操动机构和手动操动机构。As a preferred embodiment, an operating mechanism for operating the vacuum load switch 205 and the grounding switch 206 is provided outside the inflatable compartment 203; the operating mechanism is a spring operating mechanism and a manual operating mechanism.
作为一优选实施例,每个分布式单元还包括电源室202:所述电源室202的电源输入端通过电压互感器从至少两个分布式单元的进线电缆上感应取电。As a preferred embodiment, each distributed unit further includes a power supply room 202: the power supply input end of the power supply room 202 takes power inductively from incoming cables of at least two distributed units through a voltage transformer.
作为一优选实施例,所述充气隔室内充氮气,所述充气隔室内部压力与外部压力采用微正压设计,充气隔室内部的气压略高于充气隔室外部的气压,氮气无论从其环保性、局部放电风险性、紧凑性还是生产工艺成熟性、经济性等,均具有较好的性能,而且氮气的生产已经成熟,市场上有不同标准的氮气可购买,使用氮气较方便,不需要额外的设备来生产氮气;虽然对于需使用熔丝管的环网柜来说,体积相对较大,但通过不断优化绝缘布局,体积可以相应减小。所以采用氮气作为绝缘介质,使用微正压力气体(0.04-0.05MPa),降低了气体泄漏的概率,即使充气隔室发生漏气故障,仍在零表压时维持足够的绝缘强度不会影响环网柜的正常运行,既确保充气隔室内部绝缘要求又保证不漏气。As a preferred embodiment, the inflatable compartment is filled with nitrogen gas, and the internal pressure and external pressure of the inflatable compartment adopt a slightly positive pressure design, and the air pressure inside the inflatable compartment is slightly higher than the air pressure outside the inflatable compartment. Environmental protection, partial discharge risk, compactness, production process maturity, economy, etc., all have good performance, and the production of nitrogen is mature. There are different standards of nitrogen available in the market, and it is more convenient to use nitrogen. Additional equipment is required to produce nitrogen; although the volume is relatively large for the ring main unit that needs to use fuse tubes, the volume can be reduced accordingly by continuously optimizing the insulation layout. Therefore, nitrogen is used as the insulating medium, and the use of slightly positive pressure gas (0.04-0.05MPa) reduces the probability of gas leakage. Even if a gas leakage failure occurs in the inflatable compartment, it will still maintain sufficient insulation strength at zero gauge pressure without affecting the environment. The normal operation of the network cabinet not only ensures the internal insulation requirements of the inflatable compartment but also ensures that there is no air leakage.
作为一优选实施例,所述集成芯片化配电终端模块DTU通过航空插头和其它部件连接,实现“即插即用”;没有采用端子排,减少了内部断点,大大提高了发生故障时更换芯片化DTU装置效率。As a preferred embodiment, the integrated chip-based power distribution terminal module DTU is connected with other components through aviation plugs to achieve "plug and play"; no terminal blocks are used, which reduces internal breakpoints and greatly improves the reliability of replacement when a fault occurs. Chip DTU device efficiency.
作为一优选实施例,各个分布式单元的集成芯片化配电终端模块DTU彼此通过以太网或RS-485总线通信连接。As a preferred embodiment, the integrated chip-based power distribution terminal modules DTU of each distributed unit are connected to each other through Ethernet or RS-485 bus communication.
按单元配置的集成芯片化配电终端模块DTU提高环网柜的可靠性,使环网柜具备测控与保护功能,完全实现环网柜的配电自动化;使用氮气作为绝缘介质,采用微正压力设计,既确保充气隔室内部绝缘要求又保证不漏气;芯片化DTU与其它部件采用航空插头接口连接,实现“即插即用”,方便快捷。The integrated chip-based power distribution terminal module DTU configured according to the unit improves the reliability of the ring network cabinet, enables the ring network cabinet to have measurement, control and protection functions, and fully realizes the power distribution automation of the ring network cabinet; uses nitrogen as the insulating medium and adopts micro positive pressure The design not only ensures the internal insulation requirements of the inflatable compartment but also ensures that there is no air leakage; the chip DTU and other components are connected with aviation plug interfaces to achieve "plug and play", which is convenient and fast.
以上所述实施例的各技术特征可以进行任意的组合,为使描述简洁,未对上述实施例中的各个技术特征所有可能的组合都进行描述,然而,只要这些技术特征的组合不存在矛盾,都应当认为是本说明书记载的范围。The technical features of the above-mentioned embodiments can be combined arbitrarily. To make the description concise, all possible combinations of the technical features in the above-mentioned embodiments are not described. However, as long as there is no contradiction in the combination of these technical features, should be considered as within the scope of this specification.
以上所述实施例仅表达了本发明的几种实施方式,其描述较为具体和详细,但并不能因此而理解为对发明专利范围的限制。应当指出的是,对于本领域的普通技术人员来说,在不脱离本发明构思的前提下,还可以做出若干变形和改进,这些都属于本发明的保护范围。因此,本发明专利的保护范围应以所附权利要求为准。The above-mentioned embodiments only express several implementation modes of the present invention, and the descriptions thereof are relatively specific and detailed, but should not be construed as limiting the patent scope of the invention. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent for the present invention should be based on the appended claims.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108448390A (en) * | 2018-05-16 | 2018-08-24 | 无锡市佳强电气设备有限公司 | Integrated ring main unit with DTU |
| CN109244925A (en) * | 2018-09-28 | 2019-01-18 | 厦门闽光电气实业有限公司 | A kind of vacuum load switch nitrogen gas insulating method |
| CN109193943A (en) * | 2018-10-15 | 2019-01-11 | 杭州电力设备制造有限公司 | A kind of ring network cabinet monitoring system |
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| US6529857B1 (en) * | 1997-10-13 | 2003-03-04 | Viserge Limited | Distribution automation remote terminal unit |
| CN202997708U (en) * | 2013-01-15 | 2013-06-12 | 长兴县供电局 | Power distribution structure capable of easily sensing ring network cabinets |
| CN203911584U (en) * | 2014-05-05 | 2014-10-29 | 国家电网公司 | Novel distributed automatic monitoring terminals for power distribution network |
| CN206163915U (en) * | 2016-08-24 | 2017-05-10 | 中国南方电网有限责任公司电网技术研究中心 | A smart ring network cabinet |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US6529857B1 (en) * | 1997-10-13 | 2003-03-04 | Viserge Limited | Distribution automation remote terminal unit |
| CN202997708U (en) * | 2013-01-15 | 2013-06-12 | 长兴县供电局 | Power distribution structure capable of easily sensing ring network cabinets |
| CN203911584U (en) * | 2014-05-05 | 2014-10-29 | 国家电网公司 | Novel distributed automatic monitoring terminals for power distribution network |
| CN206163915U (en) * | 2016-08-24 | 2017-05-10 | 中国南方电网有限责任公司电网技术研究中心 | A smart ring network cabinet |
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Effective date of registration: 20210811 Address after: 510663 3 building, 3, 4, 5 and J1 building, 11 building, No. 11, Ke Xiang Road, Luogang District Science City, Guangzhou, Guangdong. Patentee after: China South Power Grid International Co.,Ltd. Patentee after: FOSHAN POWER SUPPLY BUREAU OF GUANGDONG POWER GRID Co.,Ltd. Patentee after: BEIJING SIFANG AUTOMATION Co.,Ltd. Patentee after: ELECTRIC POWER SCIENCE & RESEARCH INSTITUTE OF GUANGXI POWER GRID Corp. Address before: 510080 water Donggang 8, Dongfeng East Road, Yuexiu District, Guangzhou, Guangdong. Patentee before: POWER GRID TECHNOLOGY RESEARCH CENTER. CHINA SOUTHERN POWER GRID Patentee before: China South Power Grid International Co.,Ltd. Patentee before: FOSHAN POWER SUPPLY BUREAU OF GUANGDONG POWER GRID Co.,Ltd. Patentee before: BEIJING SIFANG AUTOMATION Co.,Ltd. Patentee before: ELECTRIC POWER SCIENCE & RESEARCH INSTITUTE OF GUANGXI POWER GRID Corp. |