Utwuma dukoresha ibyuma bipima ingufu dukora (active power filters) dukora mu bwoko butandukanye, ingano n'imiterere. Ubwoko bukunze gukoreshwa cyane buba bukozwe hakoreshejwe firime ya polypropylene ikoze mu byuma mu gihe bumwe muri bwo bukoresha firime cyangwa impapuro bya polyester ikoze mu byuma.

CRE yihariye mu gushushanya capacitor ya filime ya polypropylene yakozwe mu byuma ya APF, SVG, nibindi.