基于回复电压法的变压器油纸绝缘状况的等效仿真分析  

Ageing Condition Equivalent Simulation of Transformer Oil-paper Insulation Based on Recovery Voltage Method

作　　者：许梦素 莫付江[1] 陈惠[1] 汪培培 王露笛 

机构地区：[1]江苏大学电气信息工程学院,江苏镇江212000

出　　处：《绝缘材料》2018年第1期70-74,共5页Insulating Materials

摘　　要：为研究变压器的绝缘状况,通过建立均一绝缘介质的等效电路模型,仿真分析了模型参数和试验参数的改变对回复电压初始斜率和主时间常数的影响。仿真结果表明:回复电压的初始斜率和主时间常数可以用来判断变压器的绝缘状态,通过改变模型参数和试验参数可等效变压器的不同绝缘状态,为研究变压器油纸绝缘老化状况提供了新方法。To study the insulating condition of transformers, an equivalent simulation model with uniform insulating medium was built to investigate the effects of model and test parameters on the initial slope and time constant of recovery voltage. The results show that time constant and initial slope of recovery voltage can be used to judge the insulating conditions of transformers. It provides a new method to analyze the ageing conditions of transformer oil-paper insulation that using initial slope and time constant of recovery voltage by changing the model and test parameters to simulate ttae insulating conditions of transformers.

关 键 词：变压器油纸绝缘 回复电压法 均一绝缘电路模型 回复电压初始斜率 

分 类 号：TM215.6[一般工业技术—材料科学与工程] TM411[电气工程—电工理论与新技术]