TBB high-voltage shunt capacitor installation is mainly used for frequency of 6KV, 10KV, 35KV electric power system reactive power compensation to improve power factor and voltage quality, reduce line loss, and improve the efficiency of power generation and power supply. Device is combined with a high voltage switch cabinet (including high-voltage circuit breakers, isolation switch, current transformers, relay protection, survey indicates sections) and series reactor, Zinc oxide arrester and recorder, discharge coils, earthling switch, isolation switch, special high-voltage shunt capacitor and its fuse, post insulators, connecting bus, enclosure and galvanized steel frame.