Fault diagnosis of power transformer based on fault-tree analysis (FTA)

International Symposium on Resource Exploration and Environmental Science

地球科学;生态环境科学

Wang, Yongliang^1 ; Li, Xiaoqiang^2 ; Ma, Jianwei^3 ; Li, Suoyu^2

State Grid NingXia Electric Power Company, China^1

State Grid Electric Power Research Institute, China^2

State Grid Corporation of China, China^3

关键词: Fault tree analyses (FTA);    Infrared diagnostics;    Power distributions;    Power system reliability;    Power transformer fault diagnosis;    Routine analysis;    Stepwise refinement;    Transmission link;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/64/1/012099/pdf
DOI  :  10.1088/1755-1315/64/1/012099

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

Power transformers is an important equipment in power plants and substations, power distribution transmission link is made an important hub of power systems. Its performance directly affects the quality and health of the power system reliability and stability. This paper summarizes the five parts according to the fault type power transformers, then from the time dimension divided into three stages of power transformer fault, use DGA routine analysis and infrared diagnostics criterion set power transformer running state, finally, according to the needs of power transformer fault diagnosis, by the general to the section by stepwise refinement of dendritic tree constructed power transformer fault.