Vibration limits for GE turbine generator
Vibration limits for GE turbine generator
(OP)
Hello,
I am setting up a vibration monitor for a GE turbine/generator which has 4 babbitted bearings. I have some initial vibration limits of alarm at 3.5 mils, and trip at 5.0 mils. These values were given to me, but I don't know how they were derived. Can someone point me in the direction of some technical papers/articles which discuss setting vibration limits?
thanks
I am setting up a vibration monitor for a GE turbine/generator which has 4 babbitted bearings. I have some initial vibration limits of alarm at 3.5 mils, and trip at 5.0 mils. These values were given to me, but I don't know how they were derived. Can someone point me in the direction of some technical papers/articles which discuss setting vibration limits?
thanks





RE: Vibration limits for GE turbine generator
RE: Vibration limits for GE turbine generator
RE: Vibration limits for GE turbine generator
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rmw
RE: Vibration limits for GE turbine generator
You mention trip, which makes the monitor have a control function. This gets more serious than if it is just a monitor.
ISO may give some guidance, but you need to know the equipment more than it is a TG set, inclluding the available instrumentation, prox probes, shaft riders, dual probes.
Regards,
Bill
RE: Vibration limits for GE turbine generator
The 75% of clearance makes perfect sense. I figure that this should work as a logical baseline. But your equation appears to fit very well. Can you tell me how that equation was derived?
thanks
RE: Vibration limits for GE turbine generator