S&C has been granted a patent for “Method and Apparatus for Improving Electro-Hydraulic and Electro-Mechanical Integrated Control Systems of a Steam Turbine.” This method provides reliable trip response at the event of complete power interruption from the main source. Integrated turbomachinery control system should be capable of compensating that by providing power to the secondary motor from the secondary uninterruptable power source, through secondary drive. Patent No. 9,103,233.
