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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。
The adoption of all-digital AC-AC inverter technology and deceleration section of low-frequency power generation braking mode make the mine AC switch-on machine have speed regulation characteristics similar to DC system and significant energy-saving effect in the deceleration section.