高电压技术2017，Vol.43Issue(9)：2911-2918,8.DOI:10.13336/j.1003-6520.hve.20170831019
Nomex和Kraft绝缘纸在KI50X绝缘油中的空间电荷特性
Space Charge Characteristics of Nomex Insulation Paper and Kraft Insulation Paper in KI50X Insulation Oil
吴振升 1戴超 1周远翔 2黄猛2
作者信息
- 1. 北京交通大学电气工程学院,北京100044
- 2. 清华大学电力系统及发电设备安全控制和仿真国家重点实验室,北京100084
- 折叠
摘要
Abstract
New insulation dielectrics in more and more electrical devices are used in insulation system which consists of ordinary cellulose insulation paper and mineral oil.Nomex insulation paper has good mechanical properties and electrical properties,which can sustain the insulation properties under the circumstances of comparatively high temperature.The research of Nomex insulation paper,especially the research of space charge characteristics of Nomex insulation paper and conditional cellulose paper with a new kind of insulation oil,is comparatively few.Consequently,we comparatively studied the space charge accumulation and dissipation characteristics of Nomex insulation paper and conditional cellulose paper by using pulsed electro-acoustic (PEA) method.The results show that,under the same electric field intensity,the pace charge injection inside the Nomex insulation paper is significantly lower than that of the Kraft insulation paper.The higher the electric field strength is,the more obvious the space charge accumulation inside Kraft insulation paper is.In any electric field strength,the space charge migration insulation inside Kraft paper is more obvious.Space charge accumulation is easier to appear inside the Kraft insulation paper than the Nomex insulation paper.Charge dissipation rate and migration rate of the Kraft insulation paper are both greater than those of the Nomex insulation paper.关键词
油纸绝缘/Nomex绝缘纸/KI50X绝缘油/空间电荷/电声脉冲法/介电响应特性/迁移率Key words
oil-paper insulation/Nomex insulation paper/KI50X insulation oil/space charge/pulsed electro-acoustic method/dielectric response properly/mobility引用本文复制引用
吴振升,戴超,周远翔,黄猛..Nomex和Kraft绝缘纸在KI50X绝缘油中的空间电荷特性[J].高电压技术,2017,43(9):2911-2918,8.
