It Started with Synchrophasors and Led to Grid Resiliency

During the investigation into the Aug. 14, 2003, Mid-West/Northeast blackout, it became obvious that we needed higher-resolution time synchronized data for event analyses. Since then, the widespread production use of synchrophasors has been providing deeper insights for both post-event analyses and into the operation and control of the grid. Synchrophasors are precise grid measurements available from monitors called phasor measurement units (PMUs).

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