广东电力2017，Vol.30Issue(11)：94-98,5.DOI:10.3969/j.issn.1007-290X.2017.011.018
由保护联锁误动引起380 V交流全站失压故障的技术改进
Technical Improvement of the 380 V AC Total Loss Caused by the Chain Malfunction
摘要
Abstract
Through analyzing the accident happened in 500 kV substation,confirmed the main reason of 380 V AC total loss is caused by chain malfunctions,which due to the over-current protection of low-side switch of the station transformer with-out locking backup function and unreasonable setting of backup model for automatic backup power supply device.Based on this,the technical rectification measures with reference value and the new reasonable setting for backup model proposed in this paper,which has important significance to guarantee the safety and stability of the station equipment and power system, then the transmission experiment results prove that the correctness and effectiveness of the technical rectification measures.关键词
全站失压/过流保护/闭锁/自动投入功能/自动投入方式Key words
total loss/over-current protection/locking/backup function/backup model分类
信息技术与安全科学引用本文复制引用
谢家安,倪喜军,王玉荣,李强..由保护联锁误动引起380 V交流全站失压故障的技术改进[J].广东电力,2017,30(11):94-98,5.基金项目
国家自然科学基金青年基金项目(51507031) （51507031）
