電流互感器內置防開路模塊故障分析與選型策略
夏鑫，吳秋亮，周世鋼
(江蘇南瑞帕威爾電氣有限公司，江蘇 南京 211100)
摘 要：針對近年某地區一起一二次融合 ZW32-12 型柱上斷路器的故障進行了技術分析與試驗驗證，通過錄波數據查找事故原因，發現故障發生的根本原因是電流互感器內置防開路模塊啟動電壓的設計余量小。闡述了防開路模塊的作用和原理，通過理論計算和試驗驗證給出了防開路模塊啟動電壓的設計依據。經更換合理啟動電壓的防開路模塊及時避免同類故障的再次發生，提升柱上斷路器的入網質量，保障了配網的安全穩定運行。
關鍵詞： 一二次融合柱上斷路器；電流互感器；防開路模塊；伏安特性；選型策略
中圖分類號：TM452 文獻標識碼：A 文章編號：1007-3175(2024)07-0053-04
Fault Analysis and Selection Strategy of Built-In Anti-Open
Circuit Module of Current Transformer
XIA Xin, WU Qiu-liang, ZHOU Shi-gang
（Jiangsu NARI Power Electric Co., Ltd, Nanjing 211100, China）
Abstract: In recent years, a primary and secondary fusion ZW32-12 type pole circuit breaker failure was technically analyzed and verified by experiments. The accident cause was searched through the recorded wave data, it was found that the root cause of the fault was the small design margin of the starting voltage of the built-in anti-open circuit module of current transformer. In this paper, the function and principle of anti-open circuit module are briefly described, and the design basis of starting voltage of anti-open circuit module is given through theoretical calculation and experimental verification. Replacing the anti-open circuit module with reasonable starting voltage to avoid the recurrence of similar faults in time, and improve the network access quality of the circuit breaker on the column, thus ensuring the safe and stable operation of the distribution network.
Key words: primary and secondary fusion column circuit breaker; current transformer; anti-open circuit module; volt-ampere characteristic;selection strategy
參考文獻
[1] 蘭劍，王承玉，李慶余. 中國配電開關應關注的發展熱點 [J]. 高壓電器，2015，51(10) ：217-220.
[2] 王東芳， 黃國權， 黃廷城， 等. 一二次融合柱上開關組合加權模糊狀態評價[J] . 浙江電力，2020，39(2) ：48-54.
[3] 王東芳，陶飛達，黃智鵬，等. 一二次融合柱上開關控制可靠性模型與優化設計[J] . 高壓電器，2023，59(3) ：86-92.
[4] 黃智鵬，熊洽，陳家超，等. 基于改進層次分析法的柱上開關成套設備狀態評估研究[J] . 廣東電力，2020，33(3) ：88-94.
[5] 章學兵，梁亞明，夏震，等. 一起柱上真空斷路器拒動故障分析[J]. 電力與能源，2022，43(3) ：284-286.
[6] 雷珥梅. CT 伏安特性試驗及數據分析[C]//2010 年云南電力技術論壇論文集，2010.
