Vibration Control Gas Turbine

Vibration Control Gas Turbine Points : Vibration Control Gas Turbine Power Plant The vibration protection normally consists o three velocity-type pick-ups two on the gas turbine, and one on the load, for some load compressors, with a high siater to rotor weight ratio, a proximity vibration detector is utilized. Its output is treated so as to make it compatible with the standard velocity pick-up amplification system. The output of these velocity pick-ups is a voltage proportional to velocity and the trip system is normally set at a trip valve of one inch-per-second vibration.
The three pick-up channels are independent of each other and a calibration card is available to set and check each of these channels should any channel become open circuited, grounded, or short circuited, the alarm will sound, but the unit is permitted to continue to operate.