一、白山电站机组在灭磁中存在的问题白山电站自1983年三台30万千瓦水轮发电机组先后投运以来,在灭磁方面相继出现了一些较大的问题,严重的威胁着发电机组定子和转子的安全。归结起来有如下几点: 1.两台DM_2灭磁开关灭磁容量不足。在固定的励磁电源电压和额定励磁电流1700安灭磁一次,灭弧栅温升达52～54℃,又由于 First, Baishan power plant units in the demagnetization problems Baishan Power Station in 1983 since the three 300,000-kilowatt hydroelectric generating units has been put into operation, the demagnetization have emerged some of the larger problems, a serious threat to the generating units Stator and rotor safety. To sum up the following points: 1. Two DM_2 demagnetizing switch out of capacity. In the fixed excitation power supply voltage and rated excitation current 1700A demagnetization once, interrupter gate temperature rise of 52 ~ 54 ℃, and because of