|
摘要: |
针对某500kV变电站在一次进行500kV母线停电操作过程中出现短引线保护误投入运行的异常现象,通过现场检查实物接线和分析二次回路动作原理,找到了短引线保护误投入运行的原因是设计缺陷,阐述了短引线保护误投入运行将造成的后果,并提出了处理的对策以及应从中吸取的经验和教训。 |
关键词: 短引线保护 误投运 原因分析 处理对策 |
DOI: |
分类号:TM773 |
基金项目: |
|
Analysis of 500 kV stub protection malfunction and its countermeasure |
YU Yao-quan CHEN Shao-hua
|
Abstract: |
Two stub protections were wrongly put into operation during the power-break operationsof a 500 kV substation. Its cause and results are analyzed and the countermeasure is proposed. Lessons should be learnt from the accident. |
Key words: stub protection,malfunction,cause analysis,countermeasure |