Engineers Forum: Geomagnetically Induced Currents and Impacts on Protective Relay Performance

The presentation will explain how GIC can affect protective relays and substation equipment. The History of GIC will be covered and its effects on power system protection and power transformers. Then we will examine how modern protective relays are manufactured, specifically filtering techniques. This will allow the audience to understand how the effects of GIC can be monitored or mitigated using modern microprocessor based protective relays.