Busbar is an important component of power plant and substation When there is busbar failure of power plant or substation if the fault is not removed in time it may cause damage to many power equipment affect the stability of power system and cause power outage in substation In severe circumstance it may even cause collapse of the regional power system Busbar protection is an important secondary system device to ensure safe and stable operation of the power grid and its safety reliability sensitivity and fast response are of decisive significance to guarantee the safety of entire regional power grid Therefore it is very necessary to set up a busbar protection with safe operation reliable action and good performance so that the fault of busbar can be quickly detected and removed in a timely and selective manner The BP microcomputer busbar protection independently developed by CYG SUNRI was introduced 1995 With the development of automation digitization and intelligence of the power system we have constantly innovated and successively introduced digital intelligent and distributed products
