Three-part harmony: system interactions leading to a divergent resonant system

The technology to deliver efficient, low cost, and reliable thyristors with large stand off voltage and large saturation current capability to the marketplace, has led to nonlinear loads that corrupt the commercial 60 Hz power distribution system. The combined effects of the switching harmonics, the poor power factor of nonlinear loads, and the use of capacitors for power factor correction has led to a phenomenon that creates a transmission line resonance that has led to significant destructive failure mechanisms.