Smart grids support smart cities and make life better

The OPLC fiber composite low-voltage cable independently developed by the Guangzhou Power Supply Bureau combines the optical cable and the cable into one.

The transformation of the integrated energy service provider of the China Southern Power Grid Corporation and the industrial development site will be held in the Guangzhou Power Supply Bureau. Under the guidance of China Southern Power Grid Corporation, Guangzhou Power Supply Bureau made full use of the “cloud and bulk transfer technology” to develop a series of demonstration projects such as intelligent power distribution rooms and intelligent communities through the development of the entire power industry chain.

"We must take the power demand to satisfy the people's pursuit of a better life as the starting point and the foothold of all the work of the company." Li Qingkui, party secretary and chairman of China Southern Power Grid Corporation.

Intelligent community realizes four-network integration, three-table collection and demand response; intelligent power distribution room reduces power outage time... This is the first exploration of Guangzhou Power Supply Bureau to continuously explore and satisfy the people's pursuit of a better life, and also the transformation of the bureau to the integrated energy service company. The beneficial attempt of “taking talents from science and technology and benefiting from management” has contributed to the Guangzhou experience for the construction of smart cities.

At present, the smart grid layout represented by the intelligent community has been fully rolled out in Guangzhou. Guangzhou Power Supply Bureau signed contracts with various district governments to speed up the construction of intelligent communities, and cooperated with Guangzhou Mobile, Guangzhou Unicom, Guangzhou Water Investment Group, and Gas Company to carry out four-network integration and three-table collection business. Living with wisdom is coming soon.

“The basis for realizing the function of intelligent community is this OP LC composite optical cable.” The first “Internet + smart energy comprehensive demonstration community” in China Southern Power Grid Co., Ltd. – Zhongxin Knowledge City South Resettlement Area, Guangzhou Power Supply Bureau of China Southern Power Grid Li Yanhao showed the author a composite optical cable with a sheath cut off -- "the red is the cable, the white is the communication fiber".

The O PLC composite optical cable of this rattan thickness replaces the original power transmission cable, and the optical cable and the cable are combined into one. The entire cable has both power transmission and fiber-optic communication functions, and can carry various functions of the Internet, television network, and telephone network.

The O PLC composite cable solves the difficulty of the last mile of the communication network. “Where electricity is needed, cable laying is a must.” Xu Yuan, Planning and Development Department of Guangzhou Power Supply Bureau of China Southern Power Grid, said, “Power grid enterprises have the most extensive power corridor resources, and they can achieve fiber-optic homes while discharging power cables. Other operators will not need to excavate the pipeline if they are stationed, they can rent directly, and their investment and operation and maintenance costs are expected to be reduced by more than 30%."

This is a win-win situation. For operators, in addition to saving investment and operation and maintenance costs, it also promotes network deployment growth. For the society, there is no need to repeatedly put in the laying of the line, the overall social resources are saved, and the urban landscape can be improved. "In the past, the phenomenon that various telephone lines and network cables were horizontally and vertically across buildings could be effectively alleviated and fire hazards could be eliminated."

In addition, combined with power fiber fiber to the household can solve the problem of data transmission, electricity meter, water meter, gas meter can achieve three sets of copy. The sharing of cables has made the grid and electronic message network intersect. At the same time, with the key elements of intelligent community integrated management system, smart home, distributed energy, charging facilities, etc., it promotes the deep integration of energy and information, and realizes that “where there is power, there is service”. By collecting user energy data, we can derive value-added services such as personalized customization, package service, and smart home service, which is convenient for Guangzhou citizens to provide smart electricity, efficient and convenient life.

At present, the Guangzhou Power Supply Bureau of China Southern Power Grid has a total of nearly 40,000 power distribution rooms, which are numerous and scattered. Moreover, extreme environmental phenomena such as frequent rains and typhoons in Guangzhou are frequent, and traditional inspections often fail to reflect equipment problems in time.

“Manual periodic inspections have patrol blind spots. Due to the failure of human intervention, the power equipment may operate in harsh environments such as high temperature and humidity, which poses a serious threat to the safe operation of the equipment.” Power Supply Department of Guangzhou Huangpu Power Supply Bureau of China Southern Power Grid Quality Specialist Sun Qizhen said that in 2016, the Guangzhou Power Supply Bureau had 33 tripping faults caused by environmental factors in the power distribution room, with an average power outage of about 3 hours.

In the "cloud big things transfer wisdom" comprehensively come to the temporary generation, the intelligent transformation of power distribution rooms is imperative. In the construction of high-reliability demonstration area, Guangzhou Power Supply Bureau explored the construction of an intelligent power distribution room model that can replace traditional manual inspection. In July this year, the first intelligent transformation pilot project was successfully completed—the transformation of the switch house in Huangyun District jobs.

"We fully consider the cost control, according to the 'three no' principle of 'no need to power off installation, no need for manual inspection, no impact on equipment overhaul', unified construction standards, unified operation mode," said Huo Jianbin, deputy director of Guangzhou Huangpu Power Supply Bureau. “'Intelligent' and 'Lean' are both hands-on, 24-hour monitoring of the electrical environment, security, electrical parameters and physical state of the equipment, completely replacing the manual inspection."

“Now, the operating personnel can monitor the environment and equipment in the intelligent power distribution room in real time on the mobile phone or computer, which greatly saves human resources.” Han Jie, director of the distribution department of Guangzhou Huangpu Power Supply Bureau, said that it can be quickly located during repairs. The location of the electric house reduces the time for finding the electric house, and can remotely check the situation of the electric room through the video call, and comprehensively analyze the fault location through the big data platform, saving an average of 30% of manpower.

The improvement of the environment of the intelligent power distribution room can directly bring about many advantages such as the improvement of the life of the power equipment and the reduction of the energy consumption of the equipment. In addition, the grid company can extensively seek cooperation to carry out business such as renting of electric houses, transportation on behalf of the sea, and charging piles.

“In the past, we have judged that medium voltage faults mainly rely on empirical analysis. After the power distribution room is intelligent, we can analyze faults through big data and accurately locate faults.” Huo Jianbin said that this will revolutionize from passive repair to active repair. . For ordinary residents, power supply will become increasingly reliable and power outages will be less and less.

Composite Terminal Block

The composite terminal is a typical representative of the connector (CONNECTOR), which is composed of a plug (female) and a socket (male) to realize the connection function. For the transfer of voltage, current and signal, this series is characterized by safe, reliable and stable contact, and is mainly used in electric power, communication, industrial control and other industries.

composite terminal block,component terminal block,composite terminal block adapter

Sichuan Xinlian electronic science and technology Company , https://www.sztmlchs.com