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UHV GIS circuit breaker system double row layout will save 50 million yuan.
Addtime:2016-03-07 09:55:25

The two largest domestic GIS circuit breaker system is double row layout.


The engineering technology effectively saves land and facilitates the outlet of UHV transmission lines. At the same time, the pipeline bus will be invested 50 million yuan.


Tunnel crossing connection project of GIS pipeline bus system


To avoid pipeline bus system cross space connection, effectively save equipment investment, solve the main transformer system transportation and installation problems, but also facilitate system operation and maintenance.


The reporter learned from the Kunshan power supply company that the "Huainan Nanjing Shanghai" 1 million volt AC UHV transmission and transformation project Suzhou substation was first created in Suzhou, the double row arrangement of GIS circuit breaker system and the tunnel crossing connection project of the GIS pipeline bus system were tested by the technical operation.


As the largest 1 million volt high voltage AC transmission power station in the world with the largest capacity and the highest main variable capacity, Suzhou substation is the earliest UHV substation with the construction of two stations. The first project is based on the "6+1 model"


A total of 2 sets of 6 main transformer systems with variable capacitance of 3000 megavolt were set up, each serving Shanghai and Jiangsu respectively, while the other 1 main transformer systems were standby. Since the construction of the construction of the Suzhou substation in July 2014, the engineering design and construction team of Suzhou substation has overcome the test of South of Jiangsu water network and rainy weather. It is the first time to explore the engineering operation of the double row arrangement of the 1 million volt high voltage circuit breaker system and the connection of the 1 million volt high voltage GIS pipeline bus system. It is understood that the current double row layout of the GIS circuit breaker system has 449 operation units have completed more than 90%, the rest will be fully completed in March 10th. It is introduced that in the first phase of the Suzhou substation, the engineering technology effectively saves the land and facilitates the outgoing lines of UHV transmission lines. At the same time, it will save 50 million yuan from the pipeline bus.


The 1 million volt high voltage GIS pipeline bus system adopts the tunnel crossing connection engineering technology to avoid the cross connection of the pipe busbar system. It will solve the problem of the main transformer system transportation and installation in the long term construction of the substation. In addition, this technology will also greatly facilitate the whole GIS pipeline mother. The maintenance of the post operation and maintenance of the line system.