NRC Event Notification: Susquehanna Unit 1 Undergoes Manual Scram Due to Transformer Cooling Loss
July 24, 2025
July 24, 2025
WASHINGTON, July 24 -- Susquehanna Steam Electric Station's Unit 1 underwent a manual reactor scram on July 22, 2025, from 96 percent reactor power. The shutdown was initiated due to a loss of cooling to the main transformer.
Plant operators swiftly responded to stabilize the unit. All safety systems performed as expected post-scram, with main turbine bypass valves opening automatically to manage reactor pressure. The High-Pressure Coolant Injection system briefly activated, th . . .
Plant operators swiftly responded to stabilize the unit. All safety systems performed as expected post-scram, with main turbine bypass valves opening automatically to manage reactor pressure. The High-Pressure Coolant Injection system briefly activated, th . . .