The single-bus sectionalized electrical main wiring structure comprises two buses and two line outlet-wires arranged in parallel after the section of a bus, two groups of bus isolation switches, wire-outlet breakers, and connection conducting wires, one terminals of the. The single-bus sectionalized electrical main wiring structure comprises two buses and two line outlet-wires arranged in parallel after the section of a bus, two groups of bus isolation switches, wire-outlet breakers, and connection conducting wires, one terminals of the. 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. Hence we use bus bars, where these connections can be done spaciously and. The invention discloses a single-bus sectionalized electrical main wiring structure with a bus transfer isolation switch. Designing a substation involves not only the visible equipment and ratings but also the less apparent factors—operational. Bus-bars are copper rods or thin walled tubes and operate at constant voltage. We shall discuss some important Bus Bar Arrangement in Power Station and sub-stations. Single Bus-bar System: The single. The current flowing from the cable sockets is supplied to the parallel busbars via the cir-cuit-breaker and via both disconnectors - in this case operated in parallel. The total load is divided equally between the two busbars. For feed-in currents greater than 2500 A, two feed-in fields are. Busbars are metallic strips or bars that function as conductors, centralizing the electric power at a single location and enhancing the efficiency of power distribution in various industries.