Electrical properties and aging mechanisms in metallized polypropylene film capacitors

Abstract

Metallized polypropylene film capacitors are attractive as replacements for the paper-foil construction because of their reduced dissipation factor and dielectric heating, smaller size, and improved performance. Their unique clearing properties provide them with high dielectric strength which, together with the high film intrinsic strength, permits considerably higher operating stresses than those commonly applied to paper dielectrics.