一起引风机变频器跳闸事故分析

Analysis on a Frequency Converter Tripping Accident of Induced Draft Fan

介绍了某电厂引风机变频器跳闸的调查及处理过程,分析了事件的原因,指出了电气控制回路设计存在的问题,提出相应的防范措施,为电厂防止发生高压变频器跳闸事件提供参考。

The investigation and treatment of a frequency converter tripping accident of the induced draft fan in a power plant is described, analysis is performed on the tripping causes, the problems existing in the design of the electrical control circuit are pointed out, and the corresponding preventive measures are put forward, which offers reference for the power plant to prevent such a trip to occur in high-voltage frequency converters.