Transformer having an air gap and an insulation foil packet.

摘要

The transformer (1) comprises a ferromagnetic core (3), which is interrupted by an air gap (11), and a coil former (5), which is provided with a winding packet (7). The coil former (5) surrounds the core (3) at the area of the air gap (11). The winding packet (7) comprises an electrically conducting foil winding packet (17) and spacer elements (15) which are located between the coil former (5) and the foil winding packet (17) and reduce the formation of eddy currents due to the magnetic stray field (13). <IMAGE>