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

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中壓開關(guān)設(shè)備復(fù)合絕緣及固體絕緣技術(shù)研究

來(lái)源:電工電氣發(fā)布時(shí)間:2016-03-10 15:10 瀏覽次數(shù):10

中壓開關(guān)設(shè)備復(fù)合絕緣及固體絕緣技術(shù)研究 

紀(jì)江輝,張杰,王小麗,李文峰,李炎光

許繼集團(tuán)有限公司,河南 許昌 461000 
 

摘 要:針對(duì)中壓開關(guān)設(shè)備產(chǎn)品在小型化過(guò)程中產(chǎn)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(zhì)不同厚度對(duì)電場(chǎng)分布的影響,建立了數(shù)學(xué)模型,并采用電場(chǎng)有限元Infolytica ElecNet軟件進(jìn)行電場(chǎng)仿真。試驗(yàn)結(jié)果證明,使三相高壓設(shè)備的單相高壓導(dǎo)體外絕緣表面接地或合理設(shè)計(jì)多介質(zhì)的不同厚度可以降低三相設(shè)備相間或?qū)Φ氐陌踩^緣距離,達(dá)到了設(shè)計(jì)要求。
關(guān)鍵詞:中壓開關(guān);有限元;小型化;絕緣技術(shù);電場(chǎng)優(yōu)化;絕緣表面接地
中圖分類號(hào):TM591;TM85 文獻(xiàn)標(biāo)識(shí)碼:A 文章編號(hào):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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