DIELEKTRISKT FLUIDUM FOR ELEKTRISKA APPARATER, VILKET VESENTLIGEN BESTAR AV ISOPROPYLFENYL

摘要

A capacitor is disclosed of layers of metal foil alternating with insulating sheets impregnated with a dielectric fluid. The dielectric fluid comprises isopropyl biphenyl of which at least about 55% by weight is the meta isomer. The dielectric fluid forms a glassy, amorphous phase at low temperatures rather than a crystalline solid.