Product Specification Auto Transformer (22kw-75kW)/ AF TransformerAuto transformer is an economical and simple starting method for running electric motors with a voltage reduction system that is to reduce the current and voltage at start. Auto transformer has primary and secondary windings which are combined in one circuit and made some tapping to reduce other voltages so as to reduce inrush current and voltage at start. Auto Transformer consisting of 3 Phase is widely used in electric power transmission and distribution systems due to economic considerations. 3 Phase Transformer is widely used for large capacity electricity distribution. The advantages of the 3 Phase Auto Transformer compared to the 1 Phase or 2 Phase Transformer are: - more powerful - has higher efficiency - more economical in the delivery of electric power - motor movement is more stable We, PT. Permata Suksesindo Mandiri is a company engaged in the field of mechanical and electrical. For complete product information, please contact us.