ABB DC wet-type capacitors are characterized by negligible losses and high reliability. The capacitors consist of thin dielectric polypropylene film wound together with electrodes of aluminum foils. A bio-degradable hydrocarbon compound with excellent electrical properties is used as the impregnation fluid. The container is made of surface-treated high-quality steel, and the bushings and terminals are of the highest quality and reliability.
Extensive research in advanced DC capacitor techniques along with a long operation experience in this field makes ABB the world’s most experienced supplier of HVDC capacitors.