灵潭水电站装江西第二电机厂制造的TSWN-S型200千瓦水轮发电机一台,该机采用三次谐波励磁,并配有按电压负反馈原理和直流侧全电流调差的T_2S型自动电压调节器,其原理见图1。从去年初投产并网运行后,该机运行不稳定,特别在投入调差环节时,发电机三相电流表、励磁电流表、功率表的指针均在大 TSANN-S 200kw turbine generator manufactured by Lingtan Hydropower Station installed by Jiangxi No.2 Electric Machine Factory adopts the third harmonic excitation and is equipped with T_2S type which is based on the principle of voltage negative feedback and the d.c. Automatic voltage regulator, the principle shown in Figure 1. From early last year and put into operation after the grid, the aircraft is running unstable, especially in the investment transfer link, the generator three-phase ammeter, excitation ammeter, power meter pointer are large