It is designed for current measurement, electric energy metering, feeder monitoring, and relay protection in AC systems with rated frequency of 50Hz or 60Hz and rated voltage class of 10kV. The PT cabinet, also known as the busbar voltage transformer cabinet or voltage transformer cabinet, typically houses a set of voltage transformers, a circuit breaker, surge arresters, and other primary electrical components. The circuit breaker's fuse provides protection for the voltage. A bus bar (also spelled busbar) is a metallic strip or bar used in electrical power distribution to conduct electricity within a switchboard, distribution board, substation, or other electrical apparatus. Its primary role is to carry large current loads and connect multiple circuits together. In our power plant 10kv busbar pt feeder has interlock with incoming cb of busbar. is it necessary? Interested in this topic? By joining CR4 you can "subscribe" to this discussion and receive notification when new. 1) One package contains 2 busbar supports including inlay parts for bar thickness 5 mm and lateral finger-safe covers. Single Busbar System: It is simple and cost-friendly, and it is used in small panels.