On Aug. 20 the Zaporizhzhia nuclear plant said a 330 kV "Ferrous-Alloy-1"
transmission line supplying auxiliary equipment was disconnected by automatic
protection after line damage, resulting in loss of external power. The unit
switched to backup diesel generators per procedure. Equipment is operating
normally, safety systems did not fail, and on-site and perimeter radiation
readings remain at natural background and within regulatory limits. Plant
personnel are continuously monitoring parameters and have implemented all
measures required to maintain unit safety.