Multiple segment busbars, such as double busbar and triple busbar arrangements, are used to balance loads between various transmission circuits, minimize the physical space required for a substation, and provide simpler operating procedures when performing breaker. Multiple segment busbars, such as double busbar and triple busbar arrangements, are used to balance loads between various transmission circuits, minimize the physical space required for a substation, and provide simpler operating procedures when performing breaker. Many busbars connect all circuits to one common segment of busbar. The complication for these buses is simply the number of connected circuits. However, a specific busbar may have multiple bus segments, with individual circuits that connect to different bus segments depending on operating needs. Busbar protection (BBP): Protection intended to detect and operate to clear faults on a busbar. Medium-voltage switchgear 8DA/B is indoor, factory-assembled, type-tested, single-pole metal-enclosed, gas-insulated switchgear, for single-busbar and double-busbar applications, as well as for traction power supply systems. In addition, the protection relay can be utilized in restricted earth-fault and residual. The invention discloses a kind of 10kV system reclosing based on quick busbar breaker, including bus and feeder line, bus I and bus II are connected in series by segmentation fast breaker BR;Current-limiting reactor X is in series between bus I and bus II, segmentation fast breaker BR and. As a professional transformer and switchgear manufacturer, Hangbian Power Technology Co.