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The world's first UHV multi-terminal hybrid DC transmission line has been completed

Recently, the guangxi hechi los east town, wu east station sending uhv multiterminal hybrid dc demonstration projects across guangdong and guangxi guangxi railway lines of qian period of a successful lift off the last wire, marked by China southern power grid co., LTD. Investment in the construction of the world's first implementation of uhv multiterminal hybrid HVDC project all fronts.

The 1,452 km line, which spans yunnan, Guizhou, Guangxi and Guangdong provinces, is a key progress made by China Southern Power Grid in implementing the national strategy of western development.The average elevation of the line is 1300 meters, with 54.6% of the high mountains and mountains, and 10.5% of the heavy ice areas. It also crosses 275 railways (high-speed railways), navigable rivers, roads of level I and above, and important power lines.For the first time, eight split-up 900mm cross-sectional wires were used in kunliu section of the project. During the construction, many difficulties were overcome, such as continuous heavy rainfall, difficulties in foreign coordination, complex terrain, and numerous crossing and crossing.

According to introducing, Queensland LiuLong dc project total investment 24.249 billion yuan, design + - 800 kv rated voltage, the construction of the north of yunnan, liu north of guangxi and guangdong longmen 3 converter station, after the project put into production will be increased channel transmission capacity of 8 million kW, each year about 33 billion kWh can transport clean water and electricity in yunnan into the center of a large bay area of guangdong and guangxi load, equivalent to reduce BiaoMei consumption of about 10 million tons, 26.6 million tons of carbon dioxide, the benefit is obvious.

          Jiangsu Jinsanli Power Equipment Industrial Co., Ltd. was founded in 2001, Is located in the Guli street of Nanjing Jiangning Economic and Technological Development Zone.We are specializing in the production of UHV Transmission Insulators and Transmission Rubber Components. We maintian and continue to improve our product quality at the same time focus on research and development of new technology to meet the China and Overseas electricity market demand. We work together with the best Electrical Engineers in China and the Nanjing Univeristy Polymer Research Center to develop a new type of material for Transmission Line Insulators. .This is called the MODIFIED POLYETHYLENE(HDPE), unlike the ordinary polyethylene that is in the market now this is made up of new material to make a Hard Composite Type, High Insulation Performance, High UV Protection for longer life, Light Weight, Stronger Mechanical Strenght and Impact Resistance, Provide more superior moisture and contamination shedding because of the High Hydrophobic Property and a longer Leakage Distance and finally the Anti-Tracking Property that makes this product more efficient and make it quickly recognised all over the world.

         We passed ISO9001: 2015 quality management system certification, ISO14001: 2015 environmental management system certification and ISO18001: 2007 occupational health and safety management system certification. We are certified by the National Grid Product Technology in 2013, We won the title of Best Private Technology Enterprises in Jiangsu Province.  We officially become a National High-Tech Enterprises in 2016 because of our dedication and continous development on new materials for the electrical industry. And In 2017, We become the Leading Company in Nanjing for the Technology Research. Through the efforts of all staff, our company won the title of China's industry-university-research cooperation innovation demonstration enterprise in 2019.

         [Pragmatic innovation] this is our company motto. We work hard to developed and produced the best product for China's Power Transmission Industry and for Overseas Power Industry.


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