The Arabelle steam turbine is the most powerful nuclear steam turbine in operation, suitable for all reactor types.
Arabelle steam turbine improves on the previous generation low pressure (LP) exhaust design with fully independent LP cylinders. By connecting the LP inner casing to an end wall rather than the LP outer casing and ultimately the turbine table, the outer casing no longer needs to act as support. This simple but powerful design innovation greatly reduces turbine load on the foundation, caused by vacuum variations or condenser forces while improving centering of moving and stationary parts.
The Arabelle turbine has a proven reliability, with a 10 year forced outage rate of 0.04%.
