Didatic Overcurrent Protection Coordination for the IEEE 34-Node Radial Test Feeder

The IEEE Test Feeders are used in general for power flow testing methods. However the studies of it can be extended to other applications, as power system protection. This paper proposes an overcurrent protection (OCP) coordination for IEEE 34-Node Radial Test Feeder, based on the protection philosophies commonly used in Brazil, by a practical and didactic methodology. The OCP coordination proposed consist in two reclosers (R), one at substation and other at the middle of the main trunk, and fuses at the laterals. The recloser-recloser, recloser-fuse and fuse-fuse coordinations are presented and discussed. The methodology and the OCP devices used may be extended to others IEEE or real feeders. Moreover, this OCP scheme may be used as a start point to evaluate the impacts of high penetration of distributed energy resources on this feeder.