NSRD thought there was no experience for reference as this is the first 9E rotor that was broken up and sent out for repair. In order to make sure the rehabilitated rotor can reach GE’ s vibration standards, the turbine rotor and compressor rotor should be connected well in GE’s service workshop and then shipped to NSRD site for re-installation. However, in GE’s view, this will increase lifting coast and shipping difficulty, no matter who might bear the additional cost. GE believed their technology would guarantee the accuracy of on-site connection, having the same effect as done the work in the service workshop. Besides, GE promised to send TA for the site guidance. In the end, the company accepted the opinions from GE Keppel.

Reaching to NSRD site on May 20 of that year, two rotors were connected together within only 2 days and re-installed in 12 days under the guidance of GE’s TA. On June 3 the same year, they were successfully synchronized in one time, and the vibration data in operation fully met GE’s requirements. The GT unit started up from zero speed, through the first critical, second critical, full speed with no-load, full load in raising speed process, down to zero load, then from zero load into the second critical and the first critical in speed down process, until stop. The highest vibration value in the whole starting up and stopping process is only 3 mm/s. After the 2-month running test, the vibration is quite stable. NSRD has been very satisfied with operation results after the rotor was broken up and re-installed. So far China''''s first 9E rotor exported to breakup and repair project has been successfully completed, which accumulated for us the rich experience in continually carrying on this kind service.