Any stresses from generator side? may be the thermal expansion is not compensated for.

In active pads are anyway much lower rated and hence will get damaged if subjected to high load.

The turbine reaction thrusts are not likely to be on this direction. Other parameters (vibration etc OK?)

One of the best way to find the source is the cut-off study

When the problem has started ?

What was done just prior to that (say within 15 days or so) and that includes the immediate neighbours too - eg BFP, Bolier etc.

Check what could have reversed the thrust direction.

(If it is a brand new then any way your supplier is responsible, else too you can contact him-- and keep us informed so that we can update our database)

Hi,

I do not know this turbine but I am familiar with LMZ 215 MW turbine. It is 3 rotor turbine.The steam flow is design in a way to compensate axial force in each part.

If you have the inactive pads at axial radial bearing, demaged they are overloaded. What is overload reason? It is hard to asses as we do not know what has been changed in turbine. Steam path at each part is the orginal one? Maybe some changes have taken place during ovehaul? Do the inactive pads have the right dimension? Is the cold state axial shift in both direction ok?

I put the LMZ 215 MW turbine picture as I think that 165 MW turbine is similar. You wrote it is double cylinder turbine, so no LP rotor for sure but the rest should be almost the same.Let us know more info, than we can give you any tips