山东科技大学继续教育学院2013级专科电气自动化学年论文毕业论文论文题目：10kV单相接地故障的判断和处理山东科技大学继续教育学院2013级专科电气自动化学年论文函授站：聊城阳谷基地专业班级：电气自动化撰写人：魏玉珍山东科技大学继续教育学院2015年9月1日1山东科技大学继续教育学院2013级专科电气自动化学年论文摘要：10kV小电流接地系统单相接地（以下简称单相接地）是配电系统最常见故障，多发生在潮湿、多雨天气。通过对10kV配电线路发生单相接地故障原因的分析，指出单相接地故障对配电设备和配电网的危害，提出预防和故障处理办法，并建议应用新技术新设备，减少单相接地故障的发生，确保配电网安全、经济和稳定运行。关键词：单相接地危害分析预防和处理新技术新设备。abstract:10kVsmallcurrentgroundingsystemofsingle-phaseground(hereinafterreferredtoassingle-phaseground)isthemostcommonfaultsdistributionsystemoccurreddamp,rainyweather.10kVdistributionlinesthroughtheanalysisofthereasonsingle-lanegrounding,andpointsoutthatthesignal-phasegroundfaultofthesubstationequipmentandthedangersofdistributionnetwork,putsforwardthepreventionandfaulttreatmentmeasuresandtheapplicationofnewtechnology,newequipmentsuggestions,reducethesignal-phasegroundfaulthappens,ensuredistributionnetworksecurity,economicandstableoperation.keywords:Single-phaseground,Harm,Analysis,PreventionandTreatment,NewtechnologiesandNewequipment.2山东科技大学继续教育学院2013级专科电气自动化学年论文目录目录..................................................................................................................................................21前言...............................................................................................................................................41.1电气装置的接地方式........................................................................................................41.2单相接地故障的形成........................................................................................................42单相接地故障的分析...................................................................................................................52.1绝缘监察装置原理............................................................................................................52.2单相接地故障检测............................................................................................................52.310KV系统单相接地故障的特点......................................................................................62.4故障现象判断与分析........................................................................................................62.4.1完全接地（即金属性接地）.................................................................................72.4.2不完全接地（即非金属性接地）.........................................................................72.4.3电弧接地.................................................................................................................72.4.4串联谐振.................................................................................................................72.4.5绝缘监测仪表的中性点断线时电网发生单相接地..............................................72.5单相接地故障发生的分析................................................................................................83单相接地故障的查找与处理........................................................................................................
