Speedtronic®---Tomorrow´s Analog and Digital Gas Turbine Control System

This paper describes General Electric´s new solid-state analog and digital gas turbine control, protection, and sequential system. It outlines the functional objectives and elaborates on the design philosophy applied to obtain maximum starting and running reliability, while maintaining a very high degree of fail safeness for the prime mover. It shows in graph and diagrammatic form the basic functions to be performed and schematically how these functions are accomplished. It describes and shows the physical arrangement of the system. The qualification program and operating experience to date are outlined.