The power system has been in people's daily life for more than a century since its inception. The substations of GIS (GIS) have gradually replaced the traditional substations for half a century with many advantages such as small footprint and high reliability. By GIS world leading brand ABB development history to start, show you the development of China GIS technology!
Little popular point of knowledge:
GIS that gas-insulated metal-enclosed switchgear, circuit breakers , disconnectors , grounding switches, transformers, surge arresters , busbars, connectors and outlet terminals and other components. Since its practical use in the 1960s, it has been widely used all over the world. Compared with the conventional open substations, GIS has the advantages of compact structure, small footprint, high reliability, flexible configuration, easy installation, safety, environmental adaptability, and the advantages of small maintenance workload.
ABB substation history:
ABB has been manufacturing substation equipment since the early 1900s and has so far participated in more substation projects than any other supplier worldwide.
In 1965, ABB provided the world's first gas-insulated (GIS) substation. GIS technology will reduce the substation footprint up to 70%.
For more than 40 years ABB has delivered tens of thousands of GIS equipment worldwide, including China's Three Gorges Hydropower Station (delivered in 2006 with a rated voltage of 550kV), the largest GIS installation in the world. The picture below shows the Three Gorges hydropower substation real shot:
Recently, ABB and China National Grid Corporation (SGCC) have collaborated to raise the world record of the rated voltage of GIS switches to 1,100 kV. This technological innovation allows SGCC to build the world's most powerful long-distance AC power transmission network in the coming years.
China GIS history:
Through technology introduction, digestion and absorption, China has mastered the design and manufacturing technology of 500 kV GIS. Independent research and development of 1000 kV GIS (including the core components of the arc chamber and operating mechanism) will be completely independent design and manufacturing.
September 23, 2014, State Grid News Release: Zhejiang Ford Fuzhou Station completed the successful completion of the third phase AC voltage withstand test of 1000 kV enclosed composite electrical appliances (GIS). The entire test process includes AC withstand voltage test, sophisticated test and partial Discharge measurement, the test data to meet the requirements.
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