What is the purpose of a selective coordination study?

The purpose of a selective coordination study is primarily to ensure that during a fault condition, only the closest protective device operates. This method is crucial in minimizing the impact of electrical faults on the stability and reliability of the electrical system. By allowing only the protective device nearest to the fault to trip, selective coordination prevents unnecessary outages or disruptions in other parts of the system.

When selective coordination is achieved, it limits the extent of the area affected by a fault, which protects both the system and the equipment connected to it. This contributes to maintaining the overall function and efficiency of the electrical system, as it helps to isolate issues without affecting broader operations. The other options, while relevant to different aspects of electrical systems, do not accurately describe the primary goal of a selective coordination study.