Large generator rotor plant life extension-modification base loadto multi-start capability

摘要

The author gives a brief outline of the modifications made tolarge generator rotors of 200 MW and above which were originallydesigned for base load operation and now have to be capable ofmulti-start operations. Many of the units have already operated for100000 hours and more. With certain families of rotors their operatingproblems are well known, and the modernisation recognises these defectsand eliminates them