高效电机在压铸机设备上的应用

摘要

For long-running light load,the motor efficiency and power factor would be reduced,increasing the loss of motor and drag system.For the original equipment motor of the die-casting machine,one cycle of its work was most in the empty state,and the maximum impact load was only 45％.Used the high efficiency motor of the matching actual working conditions to replace the original motor.The actual power saving was about 4.7％ after actual field application,and the payback period was reasonable.%对于长期运行轻载的电机,效率和功率因数都会大幅降低,导致电机和拖动设备系统损耗增加.针对压铸机原配套电机进行现场测试发现,其工作一个周期中大部分时段处于空载状态,最大冲击负载仅为45％.采用更换与之实际工况匹配的高效电机,现场应用后实际节电约4.7％,投资回收期合理.