Article 37 Special protection schemes

Where a TSO uses a special protection scheme, it shall:

1. (a)

   ensure that each special protection scheme acts selectively, reliably and effectively;

2. (b)

   evaluate, when designing a special protection scheme, the consequences for the transmission system in the event of its incorrect functioning, taking into account the impact on TSOs concerned;

3. (c)

   verify that the special protection scheme has a comparable reliability to the protection systems used for the primary protection of transmission system elements;

4. (d)

   operate the transmission system with the special protection scheme within the operational security limits determined in accordance with Article 25; and

5. (e)

   coordinate special protection scheme functions, activation principles and setpoints with F1... affected transmission-connected DSOs, including closed distribution systems and affected transmission-connected SGUs.