紧凑运行方式下220kV金属氧化物避雷器电位与电场分布的计算  

Calculation of Electric Potential and Field Distribution of 220 kV MOA under Compact Operation Mode

作　　者：陈德兴 张永记 晋文杰[2] 张源斌[2] 

机构地区：[1]福建省厦门超高压输变电局,厦门361004 [2]西安交通大学电气工程学院,西安710049

出　　处：《高压电器》2011年第2期39-42,共4页High Voltage Apparatus

摘　　要：根据实体模型,采用有限元分析软件对紧凑运行方式下220 kV金属氧化物避雷器建立3-D模型,进行电位和电场分布计算。计算结果显示,由于阻波器距避雷器较近,使得避雷器对高电位的杂散电容增大,避雷器的电位分布变得更加均匀,因此紧凑环境下只要保证设备之间有足够的安全距离,避雷器在此环境下运行是安全可靠的。Based on the special structure of MOA,a 3-D model of 220 kV MOA under compact operation mode is established.The electric potential and field distribution of MOA was calculated using ANSYS numerical analysis software.The result shows that because of the metal shell of wave trapper is close to MOA,which makes the MOA＇s stray capacitance becomes larger,and its electric potential distribution becomes more equalized.For this reason,so long as there has enough safe distance between the equipments.MOA is safe and reliable under this condition.

关 键 词：MOA 电位分布 电场分布 有限元法 

分 类 号：TM862[电气工程—高电压与绝缘技术]