中壓開(kāi)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(kāi)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(kāi)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(lèi)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
參考文獻(xiàn)
[1] 李丹，葛樂(lè)矣，王中宇.小型中壓固體絕緣開(kāi)關(guān)柜關(guān)鍵技術(shù)及其發(fā)展[J].電工電氣，2013(12)：1-4.
[2] 王倩.固體絕緣集成式小型開(kāi)關(guān)柜[J].電氣制造，2013(1)：35-36.
[3] 張福濤.中壓開(kāi)關(guān)柜絕緣技術(shù)探究[J].中國(guó)新技術(shù)新產(chǎn)品，2011(24)：155.
[4] 王雋.提高中壓開(kāi)關(guān)柜絕緣能力的措施[J].電力安全技術(shù)，2009(1)：20-22.
[5] 鄭曉果，周行，宋曉生，李鵬，邢倩倩.固體絕緣開(kāi)關(guān)柜技術(shù)發(fā)展現(xiàn)狀[J].價(jià)值工程，2013，32(24)：39-41.
[6] 趙利生.高壓開(kāi)關(guān)復(fù)合絕緣與固體絕緣結(jié)構(gòu)技術(shù)的應(yīng)用與發(fā)展[J].絕緣材料，2001，34(6)：18-21.
[7] 李建基.高壓開(kāi)關(guān)設(shè)備實(shí)用技術(shù)[M].北京：中國(guó)電力出版社，2005.
[8] 李小松.中壓開(kāi)關(guān)柜的演化及其絕緣技術(shù)[J].電氣制造，2006(11)：20-21.
[9] 何國(guó)平.中壓開(kāi)關(guān)柜絕緣技術(shù)的分析與研究[J].機(jī)電信息，2011(15)：115-116.
[10] 李泉，修士新.中壓開(kāi)關(guān)設(shè)備內(nèi)部電場(chǎng)仿真分析與優(yōu)化[C]//2010輸變電年會(huì)論文集，2010.
