炼钢厂10 kV高压电动机防重合闸的线路改造

Transformation of the Line for Preventing Reclosing of the 10 kV High-voltage Motor in the Steel-making Plant

结合某炼钢厂电动机保护测控装置重合闸动作原理和实际保护动作情况进行分析,提出防止重合闸误动作的防范措施,并对高压柜的控制回路进行线路改造,对后台程序进行优化改进,以防止类似事件再次发生,保障该炼钢厂10 kV供电系统稳定可靠。

Based on the analysis of the reclosing action principle and the actual protection action of the motor protection and control device in a steelmaking plant,the preventive measures to prevent the reclosing misoperation are proposed,and the control circuit of the high voltage cabinet is reformed,and the background program is optimized and improved to prevent the recurrence of similar events,so as to ensure the stability and reliability of the 10 kV power supply system in the steelmaking plant.