Running AC motors with variable speed drives instead of constant or fixed speeds can save up to 50% in energy consumption, especially when operating pumps, fans, compressors and winches.

• 配有变速驱动器的交流马达代替了恒定的速度，可以减少50%25的能量损耗，尤其是在运行泵、风扇、压缩机和绞车时。