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

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    中壓開關設備復合絕緣及固體絕緣技術研究

    來源:電工電氣發布時間:2016-03-10 15:10 瀏覽次數:10

    中壓開關設備復合絕緣及固體絕緣技術研究 

    紀江輝,張杰,王小麗,李文峰,李炎光

    許繼集團有限公司,河南 許昌 461000 
     

    摘 要:針對中壓開關設備產品在小型化過程中產品絕緣距離存在安全隱患的情況,研究了絕緣層外表面接地以及不同高壓絕緣介質不同厚度對電場分布的影響,建立了數學模型,并采用電場有限元Infolytica ElecNet軟件進行電場仿真。試驗結果證明,使三相高壓設備的單相高壓導體外絕緣表面接地或合理設計多介質的不同厚度可以降低三相設備相間或對地的安全絕緣距離,達到了設計要求。
    關鍵詞:中壓開關;有限元;小型化;絕緣技術;電場優化;絕緣表面接地
    中圖分類號:TM591;TM85 文獻標識碼:A 文章編號:1007-3175(2015)06-0023-04


    Research on Insulation Technology of Medium and High Voltage Switchgear 

    JI Jiang-hui, ZHANG Jie, WANG Xiao-li, LI Wen-feng, LI Yan-guang 
    Xuji Group Corporation, Xuchang 461000, China 
     

    Abstract: Aiming at the conditions that there exist potential safety hazards for production insulation distance during the process of medium voltage switchgear miniaturization, this paper researched on insulating layer surface earthing and the impacts of different high voltage insulating medium with different thickness on electric field distribution, and established a mathematical model, adopting electric field finite element software Infolytica ElecNet to simulate electric field. Test results show that under the same conditions, the insulating surface of single phase high voltage conductor in three-phase high voltage equipment is earthed or the thickness of multi medium is reasonable designed to reduce safe insulation distance between poles of three-phase equipment or poles to earth, so as to meet the requirements of design.
    Key words: medium voltage switchgear; finite element; miniaturization; insulation technology; electric field optimization; insulating layer surface earthing


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