SUPPLEMENTARY TRANSFORMER WINDING

摘要

The invention relates to a supplementary transformer winding (10, 60), comprising a first (12, 72), second (14, 74) and third (16, 64) winding module, each having at least one winding segment (18, 20, 22) that has at least one first (18), second (20) or third (22) respective tapping (24, 26, 28, 30, 32, 76, 78). A tap changer (34) is provided which is associated with the tappings (28, 76) of the second winding module (14, 78), wherein the terminals (40, 42) of the second winding module (14, 78) are formed by an external tapping and the output of the tap changer (34). The second winding module (14, 78) is connected at the two terminals (40, 42) thereof to at least one winding segment (18, 22) of the first (12, 72) and third (16, 64) winding module and is electrically connected in series (44, 46).