Preparing for FERC 797

Preparing for FERC 797 (GIC). Grids located in the far northern and southern latitudes are most susceptible to geomagnetically induced current (GIC) problems. Other factors – including resistance of the soil, length of the transmission lines, and proximity to water – also come into play.

Watch this short interview with Ramsis Girgis, ABB’s R&D Manager for Power Transformers, to learn more about work done by the North American Electric Reliability Corporation (NERC) task force and the FERC 797 standard that describes the required steps to mitigate potential problems. To learn more, download and read Effects of GIC on power transformers and power systems.


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