Answer: A switchyard is a specialized area within a substation that contains the primary switching equipment, such as circuit breakers and disconnectors. Its main function is to connect, disconnect, and control power lines. A substation, however, is a broader term for a facility that includes the switchyard, along with other critical components like power transformers, control buildings, and protection systems. In essence, the switchyard is the high-voltage part of a substation where electricity is routed, while the substation encompasses all the equipment needed to manage and transform electrical power. Ningbo Changshi supplies a wide range of tools and equipment used in the construction and maintenance of these essential facilities.