电压致热型变电设备红外量化检测研究

为更好地评判变电设备故障的严重程度,研究了电压致热型设备发热水平与相应电气参数之间的等值量化方法。选择具有代表性的避雷器、耦合电容器为研究对象,制作了试验模型,实测试品的红外热图分布、热稳定时间特性以及温升与致热功率,获得了各相关试品温升与致热功率的关系函数。最后介绍了红外检测应用中利用温升曲线进行电气量值转换的办法。

Study of Infrared Quantitative Detection for Substation Equipment Voltage-Cause-Heated

In order to judge the severity of defects in substation equipment more effectively, this paper discusses the equivalent method between temperature rise of substation equipment voltage-cause-heated and the relevant values of the electrical parameters. Surge arresters and coupling capacitors are chosen as the representative for study, and corresponding test models are produced. Infrared thermal graph, thermal stability, as well as heat-caused power are obtained by various testing. The functional relation betw...