I have modified a turbine governor in Kattstrupeforsen G2. The frequency control is adapted to new demands from Swedish National Grid (Svenska Kraftnät). FCR (Frequency control) is divided into FCR-N (Frequency Containment Reserves for Normal situation) and FCR-D (Frequency Containment Reserves for Disturbances). The basis for the modification is a technical specification that I have written which could be implemented into any type of turbine governor on the Nordic Grid participating in the primary frequency control.