摘要
采用全数字交－交变频技术和减速段低频发电制动方式，使矿井交流提开机在减速段具有与直流系统相近的调速特性和显著的节能效果。
By using the cycloconveter and low-frequency generative braking, a a.c. mine hoist has the almost same speed control characteristic as the d.c. system in retarding period and yields notably cutting energy result.
出处
《矿山机械》
北大核心
2002年第5期37-38,共2页
Mining & Processing Equipment
