YD series testing transformer

High capacity contact voltage regulator is our company introduced German technology produced a new type of voltage regulator; its prototype is TR type THOMA voltage regulator make by MWB Company. The principle is using secondary wire spiral winding method, make the ratio of the secondary number of turns and the primary number of turns, can continuous change, so that the secondary voltage can be adjusted continuously. Its characteristic is first class winding connection without electricity, can be arbitrary continuous adjust output voltage.