Where is the breaker in a substation installed?

The breaker in a substation is typically installed between the low voltage bus and the distribution feeder circuit. This configuration allows for effective management of the electrical flow from the substation to the various distribution lines that serve users. When placed in this position, the breaker can interrupt the current in case of an overload or fault, thus protecting both the feeder circuit and the low voltage bus from possible damage. Additionally, this setup facilitates maintenance and operational flexibility, as it allows certain sections of the distribution network to be de-energized without impacting the entire substation.

The placement of the breaker in this context ensures that the electrical network remains stable, while also providing critical safety and control measures necessary for various load demands.