Power capacitor

Details Power capacitor Power capacitor

H - Electricity

01

G

334/21

H01G 4/32 (2006.01) H01G 4/06 (2006.01) H01G 4/18 (2006.01)

Patent

CA 1192279

ABSTRACT OF THE DISCLOSURE A wound capacitor element for a power capacitor is built up of electrodes of metal foils and a solid dielectric comprising polymer films. Adjacent each end surface of the capacitor element, (a) one of the metal foils is arranged with its longitudinal edge inside the longitudinal edges of the polymer films and there exposed to the end surface between adjacent polymer films and with its longitudinal edge folded along a line extending at least substantially in the longitudinal direction of the metal foil, and (b) one of the metal foils is arranged with its longitudinal edge unfolded at least along the main portion of its length. Each of the metal foils is arranged in contact with separate current tap strips which, from the interior of the capacitor element, protrude outside one end surface of the capacitor element. Where such a current tap strip protrudes from one of the metal foils, the other metal foil, at least in those portions which form the layers located nearest to said current tap strips in the capacitor element, is folded along a line extending at least essentially in the direc- tion of the metal foil.

417788

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