Voltage setting circuit for tapped transformer

摘要

The voltage setting circuit has a main winding (3) and a tap winding (5) with at least one tap-off terminal, the voltage obtained across a setting terminal (7) and a further terminal (7a) electrically coupled to the tap-off terminal.Pref. a voltage selector has at least 2 contact groups respectively associated with the setting terminal and the further terminal, each tap-off terminal of the stepping winding coupled to a respective contact of one contact group, the 2 terminals coupled to the main winding.