1.3.7kw pump controller drive 3 phase AC pump 2.pump inverter used for irrigation 3.efficiency 98% 4. without battery ... realize the maximum power point tracking (MPPT). The pump, drive by 3-phase AC motor, can draw water from the deep wells ... installation conditions, different types of pump such as centrifugal pump, axial flow pump, mixed-flow pump or deep-well pump can be used. Features ·Adopting ...