This series of capacitors is a new generation of cylindrical low-voltage self-healing capacitors independently developed by Brogline to improve grid power factor and improve power quality. Its elements are manufactured in an environment close to the 100-level purification level, avoiding oxidation of the electrodes and partial discharge. The medium is made of high-temperature resistant metallized polypropylene film, so that its technical standards such as dielectric strength are much higher than that of similar products in the industry, which guarantees safe and reliable operation.