... -III series is the high precision and intelligent automatic voltage regulator,that is our company self-research ... Wt.26.818.520.42522.62918.520.5Package DImensions470X185X245560X275X265640X380X350470X260X290 automatic voltage regulator Production flow diagram yiyuan Electric Co., ... unique feature which combine invert,charge and AC auto-transfer switch into one complete system,made inverter not only ...