... Description A. Application: Supply variable frequency three -phase emergency power supply for fire facility only having single power supply or motor of primary ... specification: 2.2, 3.7, 5.5, 7.5, 11, 15, 18.5, 22, 30, 37, 45, 55, 75, 93, ... to design requirement. Main technical parameters (EPS series variable frequency three-phase(power type)emergency power supply) Model EPS -2.2~500KW Input ...