Article 17 Control requirements
United Kingdom
The relevant TSO and the transmission-connected demand facility owner or the transmission-connected distribution system operator shall agree on the schemes and settings of the different control devices of the transmission-connected demand facility or the transmission-connected distribution system relevant for system security.
The agreement shall cover at least the following elements:
isolated (network) operation;
damping of oscillations;
disturbances to the transmission network;
automatic switching to emergency supply and restoration to normal topology;
automatic circuit-breaker re-closure (on 1-phase faults).
The relevant TSO and the transmission-connected demand facility owner or the transmission-connected distribution system operator shall agree on any changes to the schemes and settings of the different control devices of the transmission-connected demand facility or the transmission-connected distribution system relevant for system security.
With regard to priority ranking of protection and control, the transmission-connected demand facility owner or the transmission-connected distribution system operator shall set the protection and control devices of its transmission-connected demand facility or its transmission-connected distribution system respectively, in compliance with the following priority ranking, organised in decreasing order of importance:
transmission network protection;
transmission-connected demand facility or transmission-connected distribution system protection;
frequency control (active power adjustment);
power restriction.