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    Please use this identifier to cite or link to this item: http://ir.lib.ksu.edu.tw/handle/987654321/8899

    Title: 電力系統併聯電抗器啟閉暫態研究
    其他題名: The Switching Transient Phenomena of the Power System with Shunt Reactors
    Authors: 莊忠勇
    Chung, Chuang-Yung
    Contributors: 王瑋民
    Keywords: 暫態
    switching transient phenomena
    power system
    Date: 2006-05-23
    Issue Date: 2010-02-27 21:43:28 (UTC+8)
    Abstract: 台灣地區地下電纜逐漸普及,為調整必v因數及抑制電壓,併聯電抗器之使用為必然之結果。台電公司並聯電抗器單組容量161kV已規劃為80Mvar並於95年元月在大潭電廠加入系統。並聯電抗器與斷路器組合時之啟閉操作會發生截流與再弧暫態現象,造成截流過電壓與再弧過電壓已為大家所熟知,其中最為嚴重的問題為發生多重再弧時之電壓級升現象,以及再弧時之高頻電流之啟斷對斷路器接觸子之傷害。
    To compensate line capacitance current and to stabilize voltage in long distance transmission lines and cable systems, shunt reactors to be used in Taipower systems. It is known that shunt reactor current interruption causes a current chopping surge and reignition surge etc., and also it follow by high frequency arc extinction. The most important problem concerning phenomena related to the interruptions may be multiple reignition and resulting in a voltage escalation.
    The 161kV, 80Mvar reactor is first used in Taipower system. Extensive studies have been pursued in much more understanding such phenomena. However, reignition high frequency phenomena are affected by the entire system structure from the power delivery side to the load side. Furthermore, actual system parameters are very complicated, and they has not been fully investigated on the high frequency model. In case of SF6 gas insulated switchgear, the decisive factors in electrical durability are contamination and wear of parts that exposed to arc, such as nozzle and contacts. Due to high operation and high frequency reignition current the electrical durability of some parts were affected severely by few hundreds operations. The extra inspection and maintenance work of the GIS applied in shunt reactor switching is needed.
    Appears in Collections:[電機工程系所] 博碩士論文

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