煤矿高压开关柜中电弧光保护装置的研究

Arc Protection Device in High Voltage Switchgear in Mines

电弧光保护系统能够有效地减少矿山电网系统中的安全隐患。结合某矿实际,使用自主研发的电弧光保护装置PCS-9656,该装置采用光纤传感器作为电弧光探测单元,弧光传感器与保护装置间采用模拟光信号传输将光信号转化为电信号。结果表明,该装置能够快速定位短路故障点,在最短时间内快速切除故障,最大限度缩小矿山停电范围,保证供电系统的稳定可靠运行,电弧光保护系统不仅对高压开关柜起到了保护作用,而且提高了煤矿安全系数和促进了矿山企业的经济效益。

Arc protection system could effectively reduce the safety hazards in power grid system in mines.Combined with the actual situation,a self-developed arc protection device（ PCS-9656） was used in a mine.Fiber optic sensors were used to detect the arc.The arc sensors and protecting device adopted analog light signal to transmit by transforming light signal into electronic signal.The results show that the device could rapidly locate the short-circuit fault points,remove the faults in the shortest time,reduce the power outage range,and ensure the stable and reliable operation of the power supply system.The arc protection system could not only protect the high voltage switchgear but also improve the safety and economical benefits of the mine.