Knowledge Base

Earth Resistivity Model for GIC Calculations

PowerWorld Simulator GIC can automatically incorporate scaling factors for geomagnetic latitude and earth resistivity according to NERC TPL-007-2 – Transmission System Planned Performance for Geomagnetic Disturbance Events (October 2017). The earth resistivity models must be loaded from an auxiliary file.

The following models are available:

The files include scaling factors for both the Benchmark Event and the Supplemental Event.

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January 31, 2018