本文選題：串聯(lián)電容器 + 旁路開關(guān)�。� 參考：《高電壓技術(shù)》2014年12期

【摘要】：為提高串聯(lián)電容器組快速保護裝置的可靠性,開發(fā)了一種新型的可控火花間隙—Tesla變壓器驅(qū)動的與頻率相關(guān)的多級火花間隙。與現(xiàn)有3電極間隙依靠運行電壓觸發(fā)的工作原理不同,這種新型間隙的可靠快速動作完全不受它承受的運行電壓的影響。利用多級間隙與Tesla變壓器試驗樣機對新型可控間隙的動作過程、可靠動作概率和動作時間等動作特性進行了試驗研究。研究結(jié)果表明:通過合理設置參數(shù),新型可控間隙的工頻耐受電壓可以達到串聯(lián)電容器組工作電壓的10倍以上,確保不會誤動作,而選取動作閾值電壓足夠高就可以保證保護裝置具有極高的動作概率,消除拒動,具有極高的可靠性;新型保護系統(tǒng)動作時間≤20μs,具有很高的動作速度。
[Abstract]:In order to improve the reliability of the rapid protection device for series capacitor banks, a new type of controllable spark gap-Tesla transformer driven multistage spark gap is developed. Different from the current three electrode gap working principle which is triggered by running voltage, the reliable and fast operation of this new type of gap is completely independent of the operating voltage it bears. By using the multi-stage gap and Tesla transformer test prototype, the operation process, reliable operation probability and action time of the new type controllable clearance are studied experimentally. The results show that by setting the parameters reasonably, the power frequency tolerance voltage of the new type of controllable gap can reach more than 10 times of the working voltage of the series capacitor bank, which ensures that there is no misoperation. If the threshold voltage is high enough, the protection device will have high operation probability and high reliability, and the new protection system will have high action speed when the operation time is less than 20 渭 s.
【作者單位】： 清華大學深圳研究生院;
【分類號】：TM53

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