Acceleration monitoring system for protecting gas turbine...

Details Acceleration monitoring system for protecting gas turbine... Acceleration monitoring system for protecting gas turbine...

F - Mech Eng,Light,Heat,Weapons

02

C

341/95, 340/148.

F02C 7/26 (2006.01)

Patent

CA 1110739

IMPROVED ACCELERATION MONITORING SYSTEM FOR PROTECTING GAS TURBINE AGAINST DAMAGING OPERATION AT RESONANT SPEEDS ABSTRACT OF THE DISCLOSURE A fuel control schedules fuel to a gas turbine to produce a scheduled speed profile during startup. The scheduled speed profile is continuously compared to actual turbine speed during startup, and the difference is com- pared to an alarm setpoint and a trip setpoint. Normally, temperature and surge limit controls prevent the turbine from accelerating too fast; and, if the turbine is accel- erating too slowly, an alarm output is generated when the actual/desired speed difference reaches the alarm setpoint and the turbine is tripped when the actual/desired speed difference reaches the trip setpoint.

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