Circuits in a substation are electrically connected by conductors known as what?

• A. Conductors
• B. Jumpers
• C. Buses
• D. Cables

Answer: (C)

In a substation, the circuits from transformers, feeders, and switchgear all tie into a common set of conductors called the bus or busbars. These large, central conductors act as the backbone, providing a shared connection point that distributes the same voltage to multiple circuits and allows breakers and switches to connect or isolate different sections. Jumpers are short connections used to attach equipment to the bus or to bridge bus sections, while cables are general conductors used to run power between components. The bus is the specific conductor that interconnects multiple circuits in one centralized, accessible path.