高压直流金属氧化物避雷器国产化的关键技术及现状

key Techniques and Actuality of High Voltage DC Metal Oxide Arresters

随着中国多条高压直流输电线路的建成和运营,直流输电系统用高压直流金属氧化物避雷器的国产化具有重要的意义。分析认为,与相对成熟的交流金属氧化物避雷器相比,直流金属氧化物避雷器的研究和试验较复杂。而相关标准及导则的制订,直流金属氧化物电阻片的制造与检验,多柱(或只)避雷器的电流分布测量是其国产化的关键。

With building and operating of several high voltage DC (HVDC) electric transmission lines in China, it is very important for providing domestic high voltage DC metal oxide arresters (HVDC MOA) applied in HVDC system. Based on analysis it is considered that the development and test of HVDC MOA are very complex in contrast with relatively maturation HVAC MOA. So, the key techniques for development of MOA domestics are correlation standards, making and test of elements for DC MOA, and the measurement of non-uniform current between multi-column arresters.