WSC has
completed the upgrade of Zaporizhzhya Nuclear Power Plant Unit 1 Full-Scope
Simulator in Ukraine. WSC developed and replaced all primary, secondary,
balance of plant, and auxiliary systems, including the electrical system
models, using the 3KEYMASTER state-of-the-art environment and modeling tools.
The Reactor Primary Systems Thermal-Hydraulic and Neutronics models were
upgraded using Idaho National Laboratory (INL) RELAP5-RT and NESTLE. The scope
of the hardware upgrade included replacing the aged fleet of computers and
upgrading the obsolete interface between the main servers and the panel Input/output (I/O) system. The Unit 1 full-scope simulator is currently in
Pilot Operation, and WSC looks forward to a long-term relationship with the
Zaporizhzhya plant based on their forthcoming modernization FSSs for Unit 3 and
Unit 5.