© 2019 Genertech Pty Ltd

27 Tonne Generator Rotor Overhaul

Toshiba
(Jeeralang Power Station)

Genertech has a long term affiliation with Toshiba. An example of this working relationship was the overhaul of Jeeralang A4 Power Station's generator rotor. 

Works included: 

  • Carry out concentricity checks on rotor;

  • Carry out electrical tests on rotor windings (tests to include IR, RSO) prior to removing rotor retaining rings;

  • Carry out daily IR test of generator rotor and record test results, whilst the rotor is at the Contractor’s Workshop;

  • Remove rotor retaining rings;

  • Remove coupling;

  • Carry out NDT of rotor shaft change in section;

  • Carry out NDT of cooling fan blades;

  • Thoroughly clean and inspect the slip rings;

  • Carry out visual inspection of rotor windings

  • Carry out electrical tests on rotor windings (tests to include IR, RSO and others as agreed);

  • Provide written report and recommendations on findings;

  • Re-insulate rotor end windings;

  • Carry out electrical tests on rotor windings (tests to include IR, RSO and others as agreed);

  • Apply metal spray coating to shrink fit area of machined retaining rings;

  • Re-assemble generator rotor components;

  • Fit rotor retaining rings;

  • Replace coupling;

  • Carry out NDT on rotor retaining rings after fitting (dye-penetrant);

  • Carry out electrical tests on rotor windings (tests to include IR, RSO);

  • Varnish rotor body;

  • Apply protective coatings to rotor retaining rings;

  • Prepare for transport to site

 

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