Patent ID: 7995327

Claim:
A voltage transformer comprising: a high voltage capacitor and a low voltage capacitor series-connected to the high voltage capacitor, wherein the high voltage capacitor includes: at least one film with a base, which base comprises an electrically insulating polymer, and a partial coating of electrically conductive material, the partial coating being arranged on a first surface of the base, and the at least one film being windable or foldable in a longitudinal direction, wherein the partial coating forms on the first surface at least one sequence of conductively coated areas, each of the conductively coated areas being spaced from lateral edges of the base, the conductively coated areas following upon each other in the longitudinal direction of the film separated by non-coated interstices, and wherein subsequent film layers of at least one wound or folded film are arranged one on top of another, with conductively coated areas forming parallel electrode layers separated by non-coated interstices, and with the electrode layers forming a plurality of electrodes which are electrically insulated from each other; and a winding of the at least one film, with the subsequent film layers arranged one on top of another being formed by subsequent turns of the winding, wherein the low voltage capacitor includes at least two films, each with a base comprising an electrically insulating polymer and an electrically conductive solid foil arranged on top of the base, each solid foil being electrically insulated by the base, and wherein the low voltage capacitor coaxially surrounds the high voltage capacitor.