Seven products, including "LW15-1100 AC Filter bank Circuit breakers", developed by China XD Group subsidiary Xikai Limited, have passed the ‍ appraisal of China Machinery Industry Federation, and the comprehensive technical performance and main indicators of the products have reached the international leading level.Mr. Xie Qingfeng, member of the Standing Committee of the Party Committee of the Company, Member of the Standing Committee of the Party Committee of the Company and Vice General Manager of the Company, gave a welcoming speech.

The appraisal committee reviewed the technical data, type test report, process manufacturing, ex-factory test and other relevant data of the products proposed by Xikai Limited for appraisal, listened to the report of the key technologies and innovation points of the new products, and gave full affirmation to the new products and technologies proposed for appraisal this time.Finally, after discussion by the appraisal committee,Agree to the project "LW15-1100/Y4000-63 AC filter group circuit breaker, ZKLW-550 DC busbar fast switch, ZZLW2-150 HVDC transfer switch, ZGW2-408/J8000-50 HVDC isolation switch, ZGW2-816/J8000-" submitted by Xikai Limited40 High voltage DC isolation switch, ZN1 -10 DC load switch, ZLN1-10 DC circuit breaker, a total of 7 products through the identification, product comprehensive technical performance and main indicators have reached the international leading level.

LW15-1100/Y4000-63 AC filter group circuit breaker

LW15-1100/Y4000-63 AC filter group circuit breaker was designed and developed by Xikai Limited, which has independent intellectual property rights and fills the international gap.The product is a key equipment for the interconnection of 1100kV UHV AC and DC power transmission systems. The product has strong capacitive current opening and closing ability. It has been verified by 5 rounds of C2-level capacitive current opening and closing test, and its electrical life is as high as 23 times.

ZKLW-550 DC bus quick switch

ZKLW-550 DC busbar quick switch is the core equipment to enrich the diversity of DC system operation and realize the interconnection of multi-terminal DC transmission system. It is used to remove the continuing current between the converter valve tower and the pole circuit breaker in the DC valve hall or realize the fault isolation in the converter station and line.Xikai Co., Ltd. has successfully developed this product for the first time in the world, with independent intellectual property rights, comprehensive technology level in the international leader.The product has been applied in Zhangbei renewable energy flexible DC power grid test demonstration project and Yunnan-Guizhou interconnection channel project.

ZZLW2-150 high voltage DC transfer switch

ZZLW2-150 HVDC transfer switch is a key and core equipment for the operation mode of HVDC transfer system. The development of ZZLW2-150 HVDC transfer switch has overcome the key technology of passive HVDC transfer switch with large capacity and broken the foreign technical barriers.The product is independently researched and developed by Xikai Limited, and it adopts two arc-extinguishing breaks for the first time in the world. It has the DC current conversion capacity of 6400A, and the comprehensive technical level is leading in the world.The product has been successfully applied in Zhangbei renewable energy flexible DC power grid test demonstration project.

ZLN1-10 DC circuit breaker, ZN1 -10 DC load switch

ZLN1-10 DC circuit breaker and ZNF1-10 DC load switch are new hybrid DC switches developed by Xikai Limited, which are mainly used in flexible DC distribution networks.The product is equipped with electromagnetic repulsive force mechanism, the main branch adopts vacuum arc extinguishing chamber enhanced by arc voltage, and the transfer branch adopts large-capacity fully controlled devices to cut off DC current, with large truncation current and short truncation time.The successful development of this product has conquered the key technology of DC switching and owns independent intellectual property rights. It was applied for the first time in the world's largest demonstration project of medium-low voltage DC power distribution system, advancing development of medium-low voltage DC transmission system in our country.

ZGW2-408/J8000-50 high voltage DC isolation switch, ZGW2-816/J8000-40 high voltage DC isolation switch

ZGW2-408/J8000-50 High voltage DC isolation switch and ZGW2-816/J8000-40 High voltage DC isolation switch are large capacity DC transmission switchgear developed by Xikai Limited. The rated current capacity of the products is up to 8000A, the structural rigidity is high, the mechanical stability is good, meet the seismic level of 0.5g.It is the first in China to complete research and development and apply in Shanghai Miao-Linyi ±800kV UHVDC power transmission project, with independent intellectual property rights and international leading technical performance.

In recent years, relying on major national UHV AC and DC transmission projects and DC distribution network demonstration projects, China XD Group has successfully developed a number of key products, improved the company's UHV AC, DC field and DC distribution network equipment sequence, and enhanced the enterprise's R&D capability and market competitiveness. For supporting the construction of national UHV AC and DC transmission main grid and DC distribution network,It is of great significance to build a new power system based on new energy to meet the needs of the constantly developing power system.

China XD Group will always bear in mind the "national leader", take leading the technological development of the industry as its own responsibility, aim to build itself into a world-class intelligent electrical system solution provider, actively undertake national key projects and "bottleneck" key technologies, create the source of original technologies, and help China Electric Equipment to build itself into a world-class electrical equipment group.Support our grid construction and guarantee national energy security should contribute strength.