- 學位論文
空斷開關特性分析及改善
Characteristic and Performance Improvement of Air Break Switch
摘要
空斷開關 (Air Break Switch, ABS)為無負載啟斷電流能力之隔離開關設備，其安裝於電氣設備或電路兩端，用來隔離或切換電路之用，早期電力系統變電所開關場規劃多以戶外型為主，所以ABS長期暴露於大氣環境中，造成導體、接觸片與傳動機構氧化枯澀，影響其操作性能，面臨維修及汰換問題。 本論文主要以69kV空斷開關系統為主，依據機械理論及現場電流實測分析，首先探討目前改善之ABS結構元件及組裝方式；其次整理目前ABS之弱點改善，分析不同廠家、結構之ABS動作行程改善效益；最後藉由量測分析ABS動作行程與操作箱馬達電流變化特性，據以研判操作機構性能之弱點及改善後效能驗證。
並列摘要
Air Break Switch is an isolator which used to interrupt devices with no-load current. This switch is equipped both sides of main electric devices in order to isolate or switch electric circuit. Due to switchgear stations were primarily planned at the outdoor in the early time, ABS exposed for a long time in the atmospheric environment, the conductor, contact strip and transmission mechanism became oxidized and dried unsmoothly and affected its operational ability. Finally these ABS now face severe maintenance and replacement problems. The thesis mainly discusses ABS system. According to mechanical theories and local current test analysis, we first explore current improved ABS structure components and assembly method, next we reorganize current ABS weakness and further improve, analyze various ABS products including structure, traveling movement, efficiency. Finally we evaluate the weakness of operational mechanism and verification of improved performance by means of measurement of ABS traveling movement and various features of operation motor current.