China XD 7 transformer new products through national technical appraisal
In December 6th, commissioned by the National Energy Bureau, China Federation of machinery industry in Xi'an organized and hosted the Chinese west national new product appraisal meeting. 7 products of this appraisal, are new products for national key projects this year Chinese west development, is the foundation of manufacturing enterprises in the design of increasingly sophisticated technology, the continuous application of the latest scientific research and technological innovation achievements, according to the development needs of users and industry developed independently developed successfully. Identification of the Commission, these 7 new products, the technical indicators have reached the national standard. Among them, 4 new products to reach the international leading level, 3 new products have reached the international advanced level.
The successful development of the new products, to speed up the localization process of UHV AC and DC transmission equipment in China, strong support for the development needs of national electric power industry, promote China XD in transformer industry technology and brand advantages, enhance market competitiveness.
Among them, "ZZDFPZ-382000/500-800 converter transformer" is currently the world's largest single capacity, valve side voltage of 800kV converter transformer. Insulation sealing structure of oil structure, laminated core mode and the fuel tank shield improvement through optimization, solving the key technical problems of manufacturing and quality control. Using domestic insulation plate, plate, improve the domestic level, has been running in Xiluodu and Western Zhejiang + 800kV DC transmission project.
"ODFPS-1000000/ 1000 self coupling transformer is the first" by domestic UHV outgoing device and domestic silicon steel sheet of UHV autotransformer. By the end of the optimizer insulation structure, the magnetic shunt and lead structure, improve the reliability of insulation.
"SSP-1210000/ 500 is a 500kV three-phase power transformer" domestic capacity of the largest integrated step-up transformer for 1000MW supercritical coal-fired generating units developed, optimized design by electric and magnetic, heat, force and so on, magnetic flux leakage control and composite shielding technology, large current lead wire and other new structure, control of the loss reduce the magnetic leakage, and solves the problem of local overheating.
"SFP-580000/500 power transformer" for the first time using the double helix in the four low voltage winding of the three-phase generator transformer, the first end of the upper outlet, low voltage and large current leads, new tank transverse magnetic shielding structure, control of magnetic flux leakage, solves the problem of local overheating.
"OSFPS-JT-750000/500 power transformer is 500kV disassembly transport, on-site assembly type high impedance transformer. Through the whole program optimization, the key technology of the magnetic shunt and matched with the oil guide structure, core structure, the scene process of the project. And improve the workshop building and studied the facilities use efficiency, application of modular assembly technology and mobile vapor drying system, ensure the on-site process quality.
"ODFSZ-400000/500 autotransformer" is currently in the 500kV column capacity of the largest single phase high impedance variable flux on load tap changing auto transformer, using self coupling transformer winding are arranged in the same column, new magnetic shunt structure, control the decrease of magnetic leakage loss, and solves the problem of local overheating.
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