Complete inspection of a 55 MW load gearbox

Challenge

Stork Gears & Services was hired for the complete inspection of a 55 MW load gearbox. During this inspection a full visual inspection of the pinion, gear wheel and white metal bearings has been carried out. Also bearing clearances (with inside micrometers), backlashes (main gear set and pump drive) and axial float of the high speed shaft have been checked. 

Solution

The load gearbox is part of a gas turbine driven generator set. Our engineers - with power market specific expertise - were able to multi-task in a high demanding environment, from supervision and projectmanagement to executing of onsite-maintenance and complete inspections. We completed the whole project within the fixed timeline of two weeks. 

Benefits

Stork Diagnostic Services is a service-oriented part of our company and is able to carry out various sorts of measurements in order to demonstrate the behaviour of the customer's installation. Our Optimization Department recorded the vibrations of the complete installation including the gas turbine, the load gearbox and generator. 

Location: Belgium

Market segment: Power generation

Scope: Time-based preventive maintenance of the gearbox
Inspection of the pinion, gears, bearings and shafts
Vibration measurements of the gasturbine, load gearbox and generator

Application data: Flender-Graffenstaden Gearbox, type TX80 2CV, 55 MW, RPM 3600/1500, LM6000 gas turbine driven generator 55MW