SSO.
Last Updated: January 18, 2026
Version: 1.0.0
Generated: January 19, 2026
Source:
Subsynchronous oscillation is an electric power system condition where the electric network exchanges significant energy with a turbine-generator at one or more of the natural frequencies of the combined system below the synchronous frequency of the system following a disturbance from equilibrium. The above excludes the rigid body modes of the turbine-generator rotors.