... Efficiency:better than 90% Relative Humidity: Less Than 95% SVC Three phase automatic voltage stabilizer is the combination of SVC high function ... three phases four wires with three electric meters to indicate three prases separately,and a shift switch & voltage meter to shift and survey each phase ... .Model(KVA):1,5,3,4.5,6,9,15,20,30,50,60Input Voltage:Three ...