Distribution Design Using Transmission Concepts

Distribution protection equipment have become so sophisticated and advanced in recent years that can accommodate numerous protection functions and capabilities which once were only in the realm of transmission network. As such, protective equipment in distribution network can now match the functionality of the same devices in transmission. Similarly test equipment designed for verification of protection systems have become very practicable in application to both transmission and distribution networks´ equipment and assets. There is now a need to apply design principles in distribution network that are aligned to transmission concepts. This paper aims to put forward a case study in which transmission design and testing principles were applied to a distribution site and discuss the results obtained from this approach.