Suzhou Electric Appliance Research Institute
期刊號: CN32-1800/TM| ISSN1007-3175

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一起斷路器合閘不到位故障處置流程及原因分析

來源:電工電氣發(fā)布時間:2023-06-30 14:30 瀏覽次數(shù):330

一起斷路器合閘不到位故障處置流程及原因分析

李清泉,李相棟,馮知海
(國網(wǎng)山東省電力公司超高壓公司,山東 濟南 250018)
 
    摘 要:介紹了一起 500 kV 彈簧操動機構斷路器合閘不到位故障,并給出了事故緊急處理方案,來避免故障斷路器發(fā)展為燃弧、爆炸事故。通過現(xiàn)場設備檢查,對事故原因進行了分析,最終確定事故的直接原因為脫出的銷軸與機架腰形孔產(chǎn)生碰撞卡死,導致合閘不到位;根本原因為固定銷軸的螺釘未裝配或因松動而脫落。提出了相應的排查和應對措施,以避免類似故障再次發(fā)生。
    關鍵詞: 斷路器;操動機構;銷軸;合閘不到位
    中圖分類號:TM561     文獻標識碼:B     文章編號:1007-3175(2023)06-0044-05
 
Analysis of Disposal Process and Causes of a
Circuit Breaker Inadequate Closing Fault
 
LI Qing-quan, LI Xiang-dong, FENG Zhi-hai
(State Grid Shandong Electric Extrahigh Voltage Company, Jinan 250118, China)
 
    Abstract: An inadequate closing fault of the circuit breaker occurring to 500 kV spring operating mechanism is introduced, and the corresponding emergency treatment scheme is proposed to avoid this circuit breaker fault becoming an arc burning or explosion accident. After checking equipments on site, the paper analyzes causes of this fault. The collision between the detached pin shaft and the waist-shaped hole of the frame led to inadequate closing of the circuit breaker, which is the direct cause. While the root cause is that screws holding the pin shaft are not assembled or loose. Therefore, the paper proposes corresponding checking measures and solutions to avoid the recurrence of such faults.
    Key words: circuit breaker; operating mechanism; pin shaft; inadequate closing
 
參考文獻
[1] 國家電網(wǎng)公司運維檢修部. 高壓開關設備典型故障案例匯編(2006~2010 年) [M] . 北京:中國電力出版社,2012.
[2] 苗全堂,于永進,路銘,等. GIS 彈簧機構斷路器合閘不到位引發(fā)燃弧故障分析[J] . 電工電氣,2020(7):69-71.
[3] 陳宇民,趙現(xiàn)平,彭晶,等. 一起銷軸缺陷引起斷路器合閘不到位故障分析[J] . 高壓電器,2019,55(6):247-252.
[4] 馬宏明,周濤濤,彭詩怡,等. 一起 220 kV SF6路器合閘不到位故障及分析[J] . 高壓電器,2018,54(7):224-230.
[5] 韓燕,關成海,閆斌斌,等. 一起分閘掣子缺陷引起的斷路器合后即分質(zhì)量事件分析[J] . 高壓電器,2022,58(2):193-198.
[6] 黎衛(wèi)國,張長虹,楊旭,等. 一種彈簧操作機構合后即分故障分析[J] . 高壓電器,2021,57(6):246-252.
[7] 孫董軍,鄭易谷,陳曦,等. 一起 110 kV 斷路器合后即分故障及分析[J] . 云南電力技術,2019,47(2):29-31.
[8] 李璐,牛田野,姜國慶,等. 一起 500 kV SF6 斷路器爆炸事故的分析[J] . 中國電機工程學報,2016,36(S1):246-250.
[9] 范敏,陳功,藍磊,等.SF6 斷路器弧觸頭電燒蝕試驗及狀態(tài)診斷[J]. 高壓電器,2016,52(6):141-146.
[10] 陳朝廷. ABB 開關 BLG1002A 型機構分合閘彈簧調(diào)節(jié)工具及箱體[J]. 電力系統(tǒng)裝備,2021(22):98-99.