Tap changer

technical field [0001] The invention relates to a tap changer for uninterrupted switching between winding taps of a tapped transformer. Background technique [0002] Such tap changers are known in principle as built-in switches or add-on switches. [0003] A typical in-line switch usually has a load switcher in a separate tank for supposedly switching the load without interruption and placed below the load switcher for preselecting the winding taps of the variable transformer to be switched next to selector. As the name implies, this recessed switch is fully placed and assembled from above into the oil-filled transformer vessel. In this case, the separate oil tank of the load switch ensures that the oil volume of the load switch does not mix with the surrounding insulating oil located in the transformer tank. In this case, it is generally necessary to guide the electrical conductors as so-called conductor holders from the individual winding taps located inside the transfo...