GSR018: Treatment of Sub-Synchronous Oscillations SSO in the NETS SQSS

This working-group shall attempt to establish the correct treatment of sub-synchronous oscillations (SSO) within the NETS SQSS by considering: the need to include SSO related provisions within the NETS SQSS; the SSO phenomena that may need to be considered; the definition of acceptable or unacceptable SSO conditions; and the operating conditions and secured events for which acceptable or unacceptable SSO conditions should be assessed.