At 9:10 on December 4, the 50th EHV substation in Zhejiang was put into operation in Hangzhou. So far, the number and capacity of 500 kV substations in Zhejiang Province has reached a new record, second only to Jiangsu power grid and the second largest in China's provincial power grid.

According to Zhejiang electric power related person of State Grid, the substation is named as 500kV Xiaowei substation. As an important part of Zhejiang provincial demonstration project of "one map of Jiangdong electric power", it is of great significance to optimize the power grid structure of Hangzhou Dawan District, promote the economic development of Hangzhou Bay metropolitan economic circle, and ensure the power supply of Hangzhou Asian Games in 2022.

"As a new station put into operation under the background of" ubiquitous power Internet of things ", the 500kV Xiaowei substation, different from the traditional substation, will become an important embodiment of the development strategy of" strong smart grid and ubiquitous power Internet of things "of State Grid Corporation of China Zhang Jianhuan, the main person in charge of the commissioning of 500kV Xiaowei substation, introduced that the 500kV Xiaowei substation will take the lead in launching the main and auxiliary equipment monitoring system in Zhejiang Province, realizing the functions of one key sequence control, intelligent inspection of indoor and outdoor robots, real-time control of field operation, etc., so as to achieve the goal of comprehensive state perception, information interconnection and sharing, friendly human-computer interaction, highly intelligent equipment diagnosis, and greatly improved operation and inspection efficiency 。

For example, the newly added functions of "one key sequence control" status back to the background and SF6 on-line monitoring will play an important role in switching operation, efficient operation and inspection, and reducing equipment life-cycle cost.

In addition, for the local economic development, Xiaowei 500kV power transmission and transformation project is the first real main power supply in Hangzhou Bay industrial cluster area. As an important hub substation, the 500kV Xiaowei substation will become the main power supply point in Hangzhou dajiangdong industrial cluster area, Xiaoshan east area and Hangzhou Xiaoshan International Airport area, so as to alleviate Xiaoshan East and Dajiang east area Regional power load tension.