摘要
文章通过继电保护动作时间和高压开关跳闸时间的分析,对500 kV送电线路OPGW和地线热稳定计算中的短路故障时间取值问题进行了探讨,提出校验500 kV线路地线热稳定时,短路故障时间可取0.15 s;校验500 kV线路OPGW热稳定时,短路故障时间可取0.2 s。
Through analysis on relay protection action time and trip out time of HV switches the author has explored the failure time valuing of short circuit in calculation of OPGW and ground wire thermal stability for 500 kV transmission line. He put forward that for check of ground wire thermal stability of 500 kV transmission lines the failure time of short circuit can take 0.15 s, while for check of OPGW thermal stability of 500 kV lines the failure time of short circuit can take 0.2s.
出处
《电力建设》
北大核心
2004年第1期20-21,共2页
Electric Power Construction