目前矿山设备和同步电机不断增多。特别近10几年来新建矿井及老矿的新建矿风井,如燕子山矿、四台矿,全部主扇风机及压风机均采用同步电动机拖动。马脊梁、忻州窑、白洞矿改扩建的主扇风机也均是同步电动机。这些同步电动机的激励方式全部采用的是可控硅整流装置。设备运转是否正常,励磁整流装置的运行状况起着很重要的作用。据统计,造成停机故障与 At present, mining equipment and synchronous motors are increasing. In particular, the newly built mine shafts and old mines, such as the Yanzishan Mine and Sitai Mine, have been newly built in recent 10 years. All the main fan and fan are driven by synchronous motors. Ma Ridge, Xinzhou kiln, white hole mine renovation and expansion of the main fan are also synchronous motor. All of these synchronous motor excitation methods are used SCR rectifier device. Equipment is running properly, the operation of the excitation rectifier device plays a very important role. According to statistics, resulting in downtime and failure