摘要
变压器局部放电在线监测系统能够及时发现绝缘内部缺陷和放电程度,变压器油中溶解气体含量分析可以了解绝缘状况。以油中溶解气体分析为基础,结合局部放电检测可以有效地监测及诊断运行电力变压器绝缘故障。论文针对模拟变压器针板电极局部放电模型,采用恒压法实验方法,分析了变压器油中不同局部放电情况下,不同程度的局部放电与油中溶解气体的对应关系。
On-line PD monitoring system could be used to find out internal partial defects and the relevant discharge development degree in time. According to the content of gas dissolved in transformer oil. It is easy to conclude the internal insulation faulty of transformer. Based on the analysis of the dissolved gas in the oil, with the PD detection can be effective monitoring and diagnosis the insulation fault of running power transformer. Against the simulation transformer needle-board electrode PD model,makes use of constant pressure methods,the paper ana!yses the characteristics and the content of dissolved gas in oil in the different PD and the relationship between the varying degrees of PD and dissolved gas in oil.
出处
《山东电力高等专科学校学报》
2011年第4期21-23,43,共4页
Journal of Shandong Electric Power College
关键词
电力变压器
针板电极模型
power transformer
needle-board electrode model
