Our Mechanical department have no drawings of said wheel. I will find out during this upcoming outage. I will request this info from OEM also. This is the same "gear" we have had on our turbine since the 2002 spring overhaul. We did not have this problem at that time that I am aware of. We...
Thank you for your help. The OEM has repeatedly referred to the air gap of the sensors to the toothed wheel. I will follow up with them as to software sensitivity for turn down on pulse monitoring. My O-scope died a few years ago and because of lack of use I have not replaced.
Well I guess you...
We have a steam turbine/generator set that operates at 3600rpm. No problems when operating. When off line and on turning gear at 3 rpm we sometimes get false spikes to 350 rpm. This is not real of course. I have six speed probes in the front standard. They are connected back to an OEM turbine...