Application of Epri Prems Ii System To Solve Difficult Distribution and Customer Side Issues

The Portable Radiated Emission Measurement System II (PREMS II) is an innovative new tool developed by EPRI’s Power Quality Program to address “invisible” electromagnetic compatibility (EMC) issues in electric grids. By enabling utilities to quickly scan for anomalous frequency interference and potential equipment failures, PREMS II enhances the reliability of grid operations. Its integration with GIS systems allows for efficient identification of problem areas, significantly improving maintenance workflows. Utilities like TVA, SRP, ACE, Dominion, and CPS Energy have successfully applied PREMS II to resolve various issues, from internet outages to malfunctioning smart home devices, to finding failing conductors, arrestors and connections on the distribution system. The PREMS II use cases are demonstrating its critical role in preemptive maintenance, wildfire mitigation, and customer satisfaction. EPRI is currently testing the use of the PREMS II in helicopter inspections to quickly scanning Transmission lines for issues as well.