外部短路导致双机停运分析与措施

Cause analysis and preventive measures of two - generator outage when external shortcircuit impact

通过对毕节热电厂“11．8”事件CFB机组事故经过、保护动作情况及动作原因以及存在的问题进行了分析。并针对存在的问题采取了防范措施，从而确保毕节电网安全稳定运行。

Due to the external short -circuit impact of 110 kV Bilong in Bijie substation,the protection section I action and two - generator outage in Bijie Thermal Power Plant. The heating for coal - based In- tegrated Industrial Park was interrupted. In this paper, the course of ＂11.8＂ incident, the condition and causes of relay protection＇ s action and the existing problems are analysed. According to the actual situa- tion, the preventive measures are given to ensure the Bijie power grid safe and stable.