特高压gis暂态过电压特性与绝缘性能-中国科技论文在线.pdfVIP

中国科技论文在线 特高压 GIS 暂态过电压特性与绝缘性能# 林莘，徐建源，滕云，庚振新* （沈阳工业大学电气工程学院，沈阳 110870 ） 5 摘要：我国开展了特高电压电力系统的建设，无论是从运行经验还是设计理论上都是一次全 新的工作，对输变电设备的研发提出了自主化、国产化的高标准要求。特高压 GIS 是输变 电系统中的最关键设备之一，随着电压的提高，输送电能容量增大，暂态电压与绝缘问题日 益突出。在此条件下，研究了断路器开断瞬态恢复电压、快速暂态过电压、暂态地电位、潜 供电流等特高压 GIS 运行的影响，以及在各种过电压下 GIS 内绝缘的特性。研究结果指导 10 了我国特高压GIS 的绝缘结构的设计生产以及现场运行。 关键词：电机与电器；断路器；暂态过电压；绝缘性能；全封闭组合电器；特高压 中图分类号：TM 561.3 Transient overvoltage characteristics and insulation 15 performance in UHV GIS Lin Xin, Xu Jianyuan, Teng Yun, Geng Zhen Xin (Department of electrical engineering, Shenyang University of Technology, Shenyang 110870) Abstract: The construction of the ultra high voltage power system, whether from the operation experience or design theory is a new work, put forward the democracy and nationalization of the 20 high standard of power transmission equipment development requirement are proposed. UHV transmission system of GIS is one of the most key equipment, with the improvement of voltage, electric power transmission capacity increases, transient voltage and insulation problem increasingly. In these conditions, the open circuit breaker transient recovery voltage, very fast transient overvoltage, transient earth potential, secondary current have the influence on the 25 performance of the ultra-high voltage GIS, and the insulation characteristics in all kinds of overvoltage are studied. Research results of guiding the insulation structure design production as