Self-healing low-voltage parallel capacitor is mainly used to improve the power factor of industrial frequency power systems, improve the quality of the power grid and enhance the reliability of power consumption. Cylindrical capacitors are mainly used to improve the power factor of industrial frequency power systems, improve the quality of grid power supply and increase the reliability of power consumption; The shell is made of round aluminum, with good heat dissipation. It is more environmentally friendly without painting; Convenient installation, small occupied area and space saving.