施耐德TSXASY800

施耐德TSXASY800

TSXASY800

自动调节励磁装置通常由测量单元、同步单元、放大单元、调差单元、稳定单元、限制单元及一些辅助单元构成。被测量信号（如电压、电流等），经测量单元变换后与给定值相比较，然后将比较结果（偏差）经前置放大单元和功率放大单元放大，并用于控制可控硅的导通角，以达到调节发电机励磁电流的目的。同步单元的作用是使移相部分输出的触发脉冲与可控硅整流器的交流励磁电源同步，以保证控硅的正确触发。

　　调差单元的作用是为了使并联运行的发电机能稳定和合理地分配无功负荷。稳定单元是为了改善电力系统的稳定而引进的单元 。励磁系统稳定单元 用于改善励磁系统的稳定性。限制单元是为了使发电机不致在过励磁或欠励磁的条件下运行而设置的。指出并不是每一种自动调节励磁装置都具有上述各种单元，一种调节器装置所具有的单元与其担负的具体任务有关。 四、自动调节励磁的组成部件及辅助设备

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