G799 – 2.HVB – Replacement of SPACOM Series 100 Protection Relays

Summary

ČEZ is procuring the complete replacement of protection equipment for the 6 kV switchgear at the Temelín Nuclear Power Plant as a single lot. The work covers replacing existing equipment sections and auxiliary automation cabinets with new digital protection relays and auxiliary devices, preparing documentation, and making necessary changes to affected equipment. The existing protection scope and interfaces with the control system must be maintained, including communication and time synchronisation with the NEMES electrical monitoring system.