220 kV Zhaojiabou's substation is put into production and delivery, and the peak load of the six -seater substation at Hankou has become a "past"

The Yangtze River Daily Da Wuhan client June 26th "The main change of No. 1 is in good operation, and various parameters are normal, and you can send electricity!" On June 25, 220 kV Zhaojiabou's substation was successfully sent. The investment in the 220 kV Zhaojiabou's substation further enhanced the stability of the power grid structure of Wuhan's main urban area, and provided strong power guarantee for the peak summer of Hankou area in Wuhan.

Vigorously alleviate the electric pressure in the central urban area

The interior of the Zhaojiabao substation. Reporter Liang Shuang Photo

Before the 220 kV Zhaojiabou's substation was put into operation, the main city of Hankou was mainly carried out by Six 220 kV substation, including Dajiashan, Jiangtan, De Shengtang, Minsheng, Wuzhan, and Zongguan. However, as the business in the central urban area is becoming more and more prosperous, it is expected that the main urban area of ​​Hankou will increase by 5 % from last year. From the perspective of the power supply capacity of the original 6 -seat 220 kV power plant, it is difficult to meet the area of ​​the area. Demand for electricity.

"If there is no construction of a 220 kV Zhaojiabou substation, this summer's electricity load will be a great test for several other substations in the area." Gao Guohua, a squad leader of the Limited Transformer Project Department, said, "Especially in summer, the maximum load of electricity consumption will increase suddenly. Become one of the most important support for electricity load in this area. "

According to experts from the State Grid Wuhan Power Supply Company, after the 220 kV Zhaojiabou's substation is put into production and delivery, the six -seat substation in Hankou area will be full of loading operations in the summer of the summer. The power in the main city provides a strong guarantee.

Improve the stability of Wuhan's rail transit operation

The interior of the Zhaojiabao substation. Reporter Liang Shuang Photo

220 kV Zhaojiabou's transformer with a variable power station with a capacity of 240 mega -votinum, 220 kV out of three times, 110 kV out 8 times. The area of ​​the substation covers the area, and the substation is also the latest smart substation, which has high integration, good interaction, and more reliable characteristics.

"The 220 kV Zhaojiabou substation is currently a substation that combines the latest technology. Compared with traditional smart substations, the substation was replaced by 80 % of the communication cables with communication optical fibers, and the high integration made the entire station lower power consumption. "Wuhan Huayuan Electric Power Co., Ltd. technician introduced," Zhaojiabao's substation adopts the latest technology to make the substation more environmentally friendly, which has no impact on the surrounding environment. "

The operation of the subway is inseparable from a stable power supply. In the central urban area of ​​Wuhan, the subway passenger loading multiple electric loads is large, and the impact on the grid is also very obvious.

"This was considered before building Zhaojiabou's substation. Therefore, when the State Grid Wuhan Power Supply Company built the station, a transmission line was designed for the subway 3 on the side of the 110 kV." Hu Weiqiang said. "220 kV Zhaojiabou's substation further guarantees the stability of the subway operation, enhances the reliability of the subway power supply system, and improves the safety of passengers on subway traffic."

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Zhaojiajo's 220 kV substation is located in a special location, an alien ultra -routine layout, and the difficulty of civil construction is much more complicated than other substation. As far as its architectural structure is concerned, the three -story framework of the underground and above ground. The anchor is on the surrounding structure of the Zhaojiabao subway station, and the internal structure span and height are higher than that of similar substations.

220 kV Zhaojiabou's transmission line transmission line tunnel is an important external transmission power channel for the new 220 kV Zhaojiabou substation. The tunnel foundation pit excavated construction section of the deserted substation from the subway is only 1.2 meters. Underground 10 meters.

"Faced with a huge construction problem, the construction progress of the 220 kV Zhaojiabou substation is running with time." Leng Zhen, the project manager of the Jiji Power Group, said that according to usual, the construction period of a new 220 kV power station is 12 In about a month, in order to ensure the stability of the surrounding residents, the State Grid Wuhan Power Supply Company has completed the approval procedures of the Wuhan Metro Group in the early stage through a reasonable arrangement of the construction plan, the project safety impact assessment, the holding of expert project review meetings, and the monitoring of the special settlement and surrender monitoring , Signing a cumbersome process such as a safety construction agreement with subway operations. Since then, the construction process has been optimized, and many majors such as civil construction and electrical work have been closely cooperated. The completion of the entire project is only 6 months. (Changjiang Daily reporter Liang Shuang Correspondent Wang Xin Song Anqi Liang Qian)

[Edit: Deng La Xiu]

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