【摘要】 针对煤矿胶带输送机和刮板输送机的重载启动问题,采用了基于单片机的全数字化控制器控制大功率可控硅实现调压调频软启动,实现了接触器零电流分断与闭合,提高了开关寿命。更多还原

【Abstract】 Aimed at load start of belt conveyor and scraper conveyor of coal mine,mono-computer all digital control controls big-power SCR are used,soft start of frequency modulation and voltage regulation are realized.Zerocurrent cutout and close of contactor are vealized,switch life is also raised.更多还原