摘要
变频调速技术应用在煤矿中,降低了电气设备的故障率,提高了经济效益。
The Frequency control technique of motor speed is applied in a coal mine. Economical benefit is increased and the failure rate is reduced.
出处
《电气开关》
2006年第3期34-34,36,共2页
Electric Switchgear
关键词
调速特性
功率因数
效率
speed regulating characteristic
power factor
efficiency
