Turbine Overspeed Trip Protection.
This paper discusses the design, history, current standards and designs, and the relation between turbine overspeed and the time constant of rotors. Overspeeding of turbine rotors as it pertains to time lag of the overspeed devices and the amount of energy stored between the trip valve and exhaust of the turbine is addressed. Also discussed are redundant “fail safe” designs that will give maximum protection and reliability.
Rutan, Charles R. (2003). Turbine Overspeed Trip Protection.. Texas A&M University. Turbomachinery Laboratories. Available electronically from