基于双向晶闸管的有载分接开关启动机构的研究

Research on On-load Tap-changer Startup Mechanism of Triode AC Switch

采用双向晶闸管作为启动机构的分接开关,利用光电耦合器作为控制信号的收发,构成了完全由硬件电路控制操作的新型启动机构,利用变压器的二次侧电压供电,监测及控制,保证有载自动调压分接开关投入运行的可靠性。实验结果表明,完全可以取代蓄电池作为有载自动调压分接开关的启动机构,同时更加科学、安全、可靠。

Using triode AC switch as tap-changer of startup mechanism and taking the photocuplers as control signal receiving and dispatching constituted, the new startup mechanism completely by the hardware electric circuit control operation. Startup mechanism used transformer two side voltage to power supply, monitor and control. This guaranteed the reliability of on-load automatic tap- changer putting operation. The experimental results indicated it might completely substitute for the accumulator cell to startup mechanism of on-load automatic tap-changer. At the same time it was more scientific, reliable and safe.