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如今,村镇的路灯安上了,每天晚上送电,早晨停电,也是一个不大不小的麻烦.我们使用上海产的音片定时开关钟及交流接触器,研制成功了路灯自动控制装置.线路如下图.
Nowadays, the street lamps in the villages and towns are put on. Every night, the electricity is delivered in the morning and the blackouts in the morning are also an indispensable trouble. We have successfully developed the automatic street lamp control system by using the Shanghai-made tone-timed switching clocks and AC contactors. As shown below.