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| 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: |
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| Analysis of 500 kV stub protection malfunction and its countermeasure |
|
YU Yao-quan CHEN Shao-hua
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| 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 |
