Recently, China Machinery Industry Federation in Xi'an held a national technical appraisal of new products will be, the meeting of China XD developed "800 UHV DC transmission KGWF-6250/ + exchange flow valve" were identified. Identification Committee by the Chinese Academy of Sciences Academician Wang Xifan and other 19 industry experts.
　　Identification of the committee listened to the 6250A exchange flow valve design, development, test report, review of the relevant technical documents, were tested, inspected the production process and test conditions, that the products with independent intellectual property rights, overall the international leading technology index, available in practical engineering. This project based on, China XD successfully developed the 6250A commutation thyristor valve tube, saturated reactor key device and insulation test for simulating load, and completed the converter valve design platform, test platform, production lines and other comprehensive upgrading, is established for flow valve design calculation and simulation platform and model base.