Guirong Company's "National Production of Dry type Capacitors for Flexible DC Transmission Converter Valves" Passes Industry Appraisal

The new product "ZZMJ2.8-9000 National Production Flexible DC Transmission Converter Valve Dry type Capacitor" jointly developed by Guilin Power Capacitor Co., Ltd. (hereinafter referred to as "Guirong Company") and Southern Power Grid Scientific Research Institute has successfully passed industry appraisal, and its comprehensive technical performance has reached the international advanced level of similar products.

DC dry-type capacitors are power electronic equipment used in flexible DC transmission engineering, rail transit, high-power converters, new energy grid connection and other fields. This product has the advantages of high energy density, large capacitance, low loss, oil-free and environmentally friendly. The successful development of capacitors based on domestically produced granular polypropylene film has broken the monopoly of foreign manufacturers on the core raw materials of capacitors, achieved independent and controllable key technologies, promoted the development of power capacitor technology, and improved social and economic benefits.

The domestic substitution of this product has been successful and has deeper economic benefits, which can accelerate the progress of engineering construction by timely supply. After sales maintenance of products in the later stage, domestic enterprises have fast response speed, short maintenance cycle, and cost reduction, effectively reducing the cost of converter valve products and promoting the technological upgrading and sustainable development of the flexible DC transmission industry.

Southern Power Grid News: The nationwide production of DC dry-type capacitors has been successfully put into operation at the Longmen converter station of the Kunliulong DC project, achieving large-scale application of the product for the first time.

With the improvement of reliability and technological level of domestically produced DC dry-type capacitors, it will effectively drive the development of China's DC dry-type capacitor industry chain, "said the person in charge of Nanwang Research Institute.

The new product "ZZMJ2.8-9000 National Production Flexible DC Transmission Converter Valve Dry type Capacitor" that has been appraised this time is a key research and innovation project of Guirong Company focusing on national major strategic needs and industrial development bottlenecks in basic research, new product development, process research, and experimental technology. It is also a significant achievement of Guirong Company in carrying out "production, learning, research, and application".