一、设过压再激装置的目的 随着我国铁路运输事业的蓬勃发展,铁路客车用电量逐渐增加,而对供电的稳定性又提出了新的要求,即要保证功率。但是,由于我国采用新型客车供电时间还短,经验不足,再加上半导体元件性能不稳定,所以经常造成电机失控、烧损或停止发电。这样 First, set the purpose of over-voltage re-excitation device With the vigorous development of China’s railway transport, railway passenger car power consumption gradually increased, while the stability of the power supply has put forward new requirements, that is, to ensure the power. However, due to the short time-consuming and inexperienced power supply of new passenger vehicles in our country, coupled with the unstable performance of semiconductor components, the motor often runs out of control, burns or stops generating electricity. such