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我国新投产和在建的大型矿井,大都采用可控硅变流设备供电的多绳摩擦提升机。同时有许多矿井,也新用了各种可控硅设备和装置。可控硅变流设备有它的优越特点,但是,也由于它的特殊的控制特性,给矿井电网以及与之相连接的其它电气设备带来前所未有的危害作用。例如它的大量的谐波电流注入电网,频繁的无功功率冲击;以及尖峰负荷。国外将可控硅变流设备的危害作用作为公害对待,制定相应的限制标准,强制用户限制可控硅的
China’s new large-scale production and construction of mines, mostly SCR SCR power supply multi-rope friction hoist. At the same time there are many mines, but also a variety of new SCR equipment and devices. SCR converter equipment has its own advantages, but also because of its special control characteristics, to the mine power grid and connected to other electrical equipment to bring unprecedented harm. For example, its large amount of harmonic current into the grid, frequent reactive power shocks; and peak load. Foreign Thyristor SCR equipment as a hazard to deal with the harmful effects of the development of the corresponding restrictions, mandatory users to limit the SCR