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

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    10 kV開關柜梅花觸頭彈簧變形原因分析

    來源:電工電氣發布時間:2022-03-24 13:24 瀏覽次數:484

    10 kV開關柜梅花觸頭彈簧變形原因分析

    宋淼,馬飛,陸軍
    (江蘇南瑞帕威爾電氣有限公司,江蘇 南京 211100)
     
        摘 要:10 kV 開關柜梅花觸頭在長時間運行后發生變形。通過對三組梅花觸頭彈簧進行宏觀檢查、材質成分分析、力學性能試驗以及彈簧對觸指壓力校核,查找、確定梅花觸頭彈簧發生變形的原因。結果表明:造成梅花觸頭彈簧變形是由于彈簧安裝運行后,出現了拉力值低于設計要求的下降,引起觸頭發熱和彈簧變形。通過對彈簧變形原因的分析,提出合理的解決方案,使該問題得到有效預防。
        關鍵詞:10 kV 開關柜;觸頭彈簧;變形
        中圖分類號:TM591     文獻標識碼:B     文章編號:1007-3175(2022)03-0056-03
     
    Reason Analysis on Quincunx Contact Spring
    Deformation of 10 kV Switchgear
     
    SONG Miao, MA Fei, LU Jun
    (Jiangsu Nari Power Electric Co., Ltd, Nanjing 211100, China)
     
        Abstract: The quincunx contact spring of 10 kV switchgear is deformed after a long-time operation.This paper examined the quincunx contact spring, analyzed the material of this kind of spring, tested the mechanics and strength of the spring, and checked the pressure of the contactor. All these movements helped to determine the spring deformation reason.The result shows that the deformation of the contact spring is caused by the decrease of the tension value lower than the design requirements after the spring is installed and operated, resulting in contact heating and spring deformation.This study provides a reasonable solution and prevents the problem before it happens.
        Key words: 10 kV switchgear; contact spring; deformation
     
    參考文獻
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    [2] 曹志民, 吳小釗, 劉永慶, 等. 一種非自力型梅花觸頭抱緊力計算方法[J] . 高壓電器,2015,51(8) :98-101.
    [3] 黎斌.SF6 高壓電器設計[M].3 版. 北京:機械工業出版社,2010.
    [4] 倪惠浩,張小虎. 一種 10 kV 小車開關梅花觸頭彈簧拆裝專用工具的研制與應用[J] . 機電信息,2018(3) :35.
    [5] 胡金祥. 彈簧觸指的設計與應用[J] . 電工電氣,2017(10) :60-64.

     

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