高电压技术2012,Vol.38Issue(11):3087-3092,6.
550kV环氧浸渍干式油-SF6电容套管温度场分析
Thermal Field Analysis for 550kV Epoxy Resin-impregnated Paper Oil-SF_6 Capacitor Bushing
摘要
Abstract
To verify the thermal performance of the 550kV epoxy resin-impregnated paper(RIP)oil-SF6bushing,we experimentally analyzed the temperature-rise on 5 000Aand 6 300A.A thermal field finite element calculation model was established by thermal-electric coupled analysis method.Temperature-rise test results indicate that the oil side temperature is higher than SF6side.The larger current is,the higher temperature can be produced.Furthermore,the calculation results on the condition of 5 000Ashow that an uneven current density in the radial direction may be induced in the conductive tubes by the skin effect and proximity effect;the middle of inner conductive tube has a highest calculation temperature.Research results demonstrate that the calculation results are in accordance with the test ones,which can give reference for optimizing RIP bushing design.关键词
环氧树脂/油-SF6套管/温度场/温升试验/有限元/热-电耦合分析Key words
epoxy resin/oil-SF6bushing/thermal filed/temperature-rise test/finite element/thermal-electric coupled analysis分类
信息技术与安全科学引用本文复制引用
许佐明,胡伟,张施令,谢雄杰,彭宗仁,侯建锋..550kV环氧浸渍干式油-SF6电容套管温度场分析[J].高电压技术,2012,38(11):3087-3092,6.基金项目
国家电网公司科技项目(SG0924 ()
SG11006) ()