Electronic-Coupled Generators Short Circuit Impacts

This paper provides an overview of the potential impacts that electronic-coupled generators, such as those used on distributed generation (DG), will have on the electric grid. First, it will provide a description of how Southern California Edison (SCE) performed short circuit (fault) tests on electronic-coupled generators. In addition, the paper will show how to analyze actual fault test data from electronic-coupled generators such as solar photovoltaic (PV) inverters. Furthermore, it will provide an overview of the potential system impacts that DG may bring to distribution circuit protection, circuit breakers (CBs). Finally, the paper will provide recommendations on how to prevent or mitigate fault impacts from electronic-coupled generators.