葛—上直流输电工程换流站直流侧过电压与绝缘配合问题

Overvoltages and Insulation Coordination at DC Side of Converter Stations for Ge-Shang HVDC Transmission Project

本文着重介绍葛—上直流输电工程系统调试中换流站直流侧过电压测试的结果,对调试期间发生的直流设备事故进行了分析,对换流站部分直流设备的过电压与绝缘配合问题进行了讨论。

The field test results about DC overvoltages at the converter stations during the conmissioning test for Ge-Shang ±500kV HVDC transmission project are presented in this paper, DC equipment faults taking place during the field tests are analysed, and the overvoltages and insulation coordination problems for some equipment at the converter stations are discussed.