Are the two main components of a switchyard switches and buses?

• A. Circuit breakers
• B. True
• C. False
• D. Transformers

Answer: (B)

The switchyard is built around a common electrical path and the devices that control connections to that path. Buses are the large conductive bars that provide the shared route for power as it enters, leaves, and is distributed to different lines. Switches are the devices that can connect or disconnect portions of the system, allowing operation, maintenance, or fault isolation. Together, these two elements define the basic structure of a switchyard: a central bus system plus the switching equipment that routes and isolates circuits. Other equipment like transformers or protective devices enhances functionality, but they aren’t the defining pair that the statement identifies. So yes, describing the two main components as switches and buses is true.