1) BEARING
The TG unit is mounted on 1 bearing.HPT rotor
is mounted on two bearings, a double wedged journal bearing at the front and
combined/journal bearing adjacent to front IP rotor coupling. The IP & LP rotors
have a journal bearing each at the end of the shaft. The journal bearing of IP
& LP rotors are self
adjusting tragspiegal bearings. The bearing pedestals are anchored to the
foundation and are fixed in position. The HP & IP cylinder rest through their
support palms on bearing pedestals’. The axial position of HP cylinder is fixed
at the casing guide on the front end of HP-IP pedestal .The expansion of IP
cylinder takes from hp-ip pedestal towards generator. The fixed point for the
LP outer casing is at the center of the longitudinal girder.
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