电力系统保护与控制2025，Vol.53Issue(8)：168-177,10.DOI:10.19783/j.cnki.pspc.240891
继电保护装置失效的温度影响特性及其失效率预计方法
Temperature influence characteristics of relay protection device failure and its failure rate prediction method
摘要
Abstract
Relay protection devices are the first line of defense in power systems,and their reliability is crucial.Temperature is the primary factor that leads to the failure of relay protection devices,significantly affecting their reliability.However,current reliability impact analyses of relay protection devices,particularly their failure rate prediction,rarely consider the influence of temperature.In view of the above problems,the influence characteristics of temperature on relay protection devices are analyzed in detail,and a failure rate prediction method considering temperature is presented.First,the architecture of typical protection devices is introduced.The heat transfer forms and temperature characteristics in different installation environments are analyzed,and the temperature distribution characteristics of the device are studied.Next,reliability physics is used to quantitatively analyze the temperature influence characteristics of device failure.Combined with the device architecture,a failure rate prediction method for a relay protection device considering temperature is then proposed.Finally,from the measured temperature and failure rate prediction results in different environmental conditions,the rationality of the proposed method is verified by combining with the engineering data and experience.关键词
继电保护装置/温度/影响特性/失效率预计Key words
relay protection device/temperature/influence characteristic/failure rate prediction引用本文复制引用
喇军,刘宇,李仲青,王雨茜,薛安成,舒治淮..继电保护装置失效的温度影响特性及其失效率预计方法[J].电力系统保护与控制,2025,53(8):168-177,10.基金项目
This work is supported by the National Key Research and Development Program of China(No.2021YFB2401000). 国家重点研发计划项目资助(2021YFB2401000) （No.2021YFB2401000）
