某高压瓷柱式断路器抗震性能分析研究 Analysis of Aseismic Capacity of High Voltage Breaker for Porcelain Column Type

针对瓷柱式高压断路器抗震能力较为薄弱的问题，以某型高压断路器为研究对象，开展其抗震及减震性能分析研究，旨在确保高压断路器在地震发生时的无破坏性。文中基于ANSYS开展某型高压断路器模态分析研究，获得断路器的固有频率和模态振型，确定断路器易损坏的部位；根据美国变电站抗震设计推荐规程IEEE Std-693-2005和高压开关设备抗地震性能试验GB/T13540-2009要求，选用天然Elcentro波和Taft波对高压断路器进行水平激励，开展易损坏部位的位移和应力时程分析，确定其最大位移和最大应力，为断路器的抗震设计优化提供技术支撑。 According to the weakness character of seismic capacity of high voltage breaker and ensuring no damage at the time of the earthquake, the breaker is used as research object to carry out the aseismic capacity and seismic Isolation analysis. Firstly, the modal analysis of high voltage brea- ker is carried out, the natural frequency and mode shape of the breaker are calculated, and the easily damaged parts of high voltage breaker are determined. Secondly, according to the stan-dards of the IEEE Std-693-2005 and GB/T 13540-92, natural Elcentro wave and Taft wave are used to carry out the level excitation of the high voltage breaker, and the time history analysis of the displacement and stress of the vulnerable parts of breaker are carried out, and the maximum displacement and maximum stress of vulnerable parts are determined. The above research can provide technical support for the seismic design optimization of the breaker.