UHVDC converter valve fitted with "Chinese core"

Recently, the world's first ±800kV/4750A UHVDC valve with the 6-inch 7200V thyristor developed by CSR Zhuzhou successfully installed the key type test-valve insulation impact test. The test results meet the requirements of the national technical specifications, and have passed the certification of the world's authoritative power test and certification agencies, creating the world's highest flow capacity and voltage rating for similar products.

Compared with AC transmission technology, DC transmission has the advantages of small line losses, low line cost, fast adjustment, strong system stability, and large transmission capacity, and is the world’s most recognized solution to long-distance, large-capacity transmission and grid interconnection problems. Effective technical means. Its core equipment is the R&D and manufacturing of DC converter valve, which is currently one of the most complicated power equipment technologies and is called the “heart” of the HVDC transmission system. The thyristor is also the core component of the converter valve and is known as the converter. The "movement" of the valve.

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