An On-line Diagnosis Method of Transformer Hot Fault Based on Infrared Thermal Imaging Technology

摘要：

An on-line diagnosis method based on infrared thermal imaging technology of transformer hot fault is given. Using real-time thermal imaging of transformer surface, the temperature distribution fields is built. A heat-transfer model was established by some parameters, such as surface temperature, structure parameters, physical characteristics and environmental temperature of transformer. And then the inner hot fault temperature of transformer is calculated through the model. By comparing with DGA diagnosis result, the availability of diagnosis method is proved. And then the on-line and non-contact diagnosis of transformer latent hot fault is realized.

关键词： electric fire on-line diagnosis transformer DGA technology infrared thermal imaging technology

作者: GUO Yingjun SUN Lihua RAN Haichao

作者单位: Hebei University of Science and Technology, Shijiazhuang Hebei, 050054, China

会议类型: 国际会议

会议名称: 第七届国际测试技术研讨会

会议地点: 北京

会议语种:英文

在线出版日期: 2007-08-05（万方平台首次上网日期，不代表论文的发表时间）