The bus bar fastening consists of an aluminium double “C”-profile, angle brackets, T-head bolts and plastic fastening clamps. The fastening clamps are/must be designed as “fixed bearings” or “plain bearings” to enable axial sliding of the bus bar when there are several. Here, we provide an overview of common substation busbar configurations—Single Bus, Main and Transfer, Double Breaker/Double Bus, Ring Bus/Ring Main, and Breaker and a Half. Designing a substation involves not only the visible equipment and ratings but also the less apparent factors—operational. In Simple words, a bus-bar is a common connection point or a node for multiple incoming and outgoing circuits such as power lines or feeders. As we know it is impractical to connect multiple conductors at one point. Presented single line diagrams and layouts are generalized since they depend on the type and voltage (s) of the substations. All the incoming and outgoing lines and transformers are connected with circuit breakers and disconnecting switches to the busbars as illustrated in figure 4 (a) A bus coupler consisting of a circuit. Busbar for new transmission substations and, where feasible, existing and planned substations. fe, secure, reliable and efficient transmission power system, delivered in an economic manner. This is achieved by ensuring an adequate level of transmission substation reliability, and by extension. Eaton's Power Xpert UX system in double busbar configuration is designed for your most critical applications up to 24kV and delivers increased flexibility, reliability and safety. The configuration in back-to-back or front-to-front completes the extensive range of panel types and options available.