A generator robotized inspection and diagnostic system with rotor in situ
Major inspection of turbogenerators is usually performed by extracting the
inner rotor.
The Ansaldo Energia ROBIN robotic system gives the Customer the possibility to perform a fully digitalized and high reliable generator analysis during a minor/medium inspection overhaul, therefore without pulling out the rotor.
The ROBIN system
• ROBIN (ROBotic INspection) system comprises a crawler robot able to inspect different technologies of generators
• The crawler robot design gives the possibility to move on ferromagnetic surfaces with a wide reconfigurability in terms of mechanical add-ons and plug-and-play sensors
• The robot can be positioned on each slot manually, by the use of a specifically designed tool, or automatically, thanks to an automatic slot changer
• The automatic slot changer is supported and attached to the rotor retaining ring and provides movements and fine positioning in order to receive the crawler from a stator slot and repositioning it onto the next one
Features
• Digital cameras (frontal, upper and lower views) for visual inspection
• Micro hammer embedded design for wedge tightness test
• EL-CID sensor (or Chattock Coil) for electromagnetic core imperfection detection