Siemens AG - Power Generation Group

Within the Quality Management Division (FSOS), KVVU, the Power Generation Group of Siemens AG, supplies all NDT services which are applied to verify the safety and to maintain the availability of turbine generators. FSQS is integrated into the quality organisation of the Steam Turbine and Generator Manufacturing Plant and certified according to ISO 9001. The NDT laboratory is accredited according to EN45001 (DAR-No. DAP-P-02.518-00-93-20).

Turbine Generator rotors are highly stressed components which have to be inspected by nondestructive test methods. The inspection techniques, therefore, must correspond to the state-of-the-art and have to reveal

service induced cracking

defects from manufacturing process

The inspection systems for ultrasonic testing (UT), eddy current testing (ET), magnetic particle testing (MT) and dye penetrant testing (PT) are based on a profound knowledge of physics.

Highly sophisticated inspection techniques have been developed to detect and size defects in forgings which might affect the integrity of turbine Generator rotors:

disc inspection (UT)
solid rotor inspection (UT)
bore inspection (UT, ET, MT)
retaining ring inspection (UT, ET, PT)
blade inspection (MT, ET)
blade root inspection (UT, ET)

The NDT service can be applied to turbine Generator components of any make. NDT engineering, consultancy, feasibilty studies and personnel training is available to solve your NDT problems.

There are mechanized inspection systems available with complete digital data aquisition. For imaging (tomography, B-scan, TD-scan, etc.) and signal processing (SAFT), PC-computers are used.

Based on NDT results, a life extension evaluation is performed by fracture mechanic calculations to confirm the integrity of the turbine Generator component.

TUSIS: UT Inspection of a Solid Rotor

TUSIS: Tomography Image with Findings