An Overview of the Development of Leak Detection Monitoring for Ontario Hydro Nuclear Stations

Abstract

The development of leak detection monitoring by the Annulus Gas System (AGS) for the Ontario Hydro Nuclear Stations over the last several years is reviewed. Verified models were used to modify the AGS and provide the operators with safe operating limits. The current AGS design gives the operator an adequate warning to take timely action and if needed to shutdown the reactor safely in a controlled fashion.