An interconnected arrangement of electrical components, conductors, and a power source that forms a continuous loop for current. In grid operations, the term usually refers to a specific functional path protected by a single breaker, such as a transmission line or a distribution feeder.
Heard on the job
We need an outage on circuit two to replace a cracked insulator on the anchor pylon.
Related terms
Circuit breaker
A mechanical switching device capable of making, carrying and breaking currents under normal and fault conditions.
Closed
The state of a switch or circuit breaker where its contacts are physically touching to allow current flow.
Electric current
The directed flow of electric charge through a conductive medium.