三峡换流站过电压保护及绝缘配合的技术要求

The Overvoltage Protection and Insulation Coordination for Three Gorges Converter Station

根据葛南直流工程的经验并结合三峡工程的情况，在换流站的外绝缘、直流耐污湿技术、直流中性母线过电压防护、交直流滤波器的过电压防护等方面提出了过电压和绝缘配合的技术要求，供设计参考。

According to the practice on Gezhouba to Shanghai HVDC transmission project and in consideration of condition on Three Gorges HVDC project,some suggestions on protection of overvoltage and insulation coordination for outer insulation,against pollution wet,DC neutral bus over voltage and DC & AC filter are technically presented.It may be a reference in design of Three Gorges converter station.