... 2,1.5 ~ 1000kW 3,The warrantee period is 12 months within 4,the speed-adjustable equipment 380VEnergy-saving system for oil ... warrantee period is 12 months within4,Energy-saving system designed for the automatic control 5, Based on changing the motor’s frequency ... the production line by achieving the energy saving effect. 1.5 ~ 1000kW energy saving system