Generators

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By accessing the advanced technologies and experience of KPS and Ethos Energy, we can provide generator services that:

  • Provide fast and cost effective repairs to your generators
  • Recommend the best solution without OEM bias towards particular technologies
  • Access highly trained and experienced engineers to control all work

CAPABILITIES

MAINTENANCE AND INSPECTION

Routine maintenance of generators including:
  • Diagnostic testing – electrical tests (HV, PI), hydraulic integrity tests (Pressure decay, Vacuum decay, In-leak)
  • Dismantling and rotor removal
  • Cooler inspection, cleaning and repair
  • Internal inspection

ROTOR REPAIRS AND REWINDS

Overhaul of rotors including:
  • Diagnostic testing of rotor (RSO test and pole drop test)
  • Removal and replacement of retaining rings
  • Retaining ring NDT
  • Removal of slot wedges and inspection of slot insulation
  • Rewinding of field with upgraded insulation systems
  • Modifications to overcome initial design flaws

STATOR LEAK REPAIRS AND REWINDS

Stator inspection and repairs including:
  • Diagnostic testing (ELCID, DDF, HV withstand test, bump test for enwinding analysis)
  • Visual inspection of stator
  • Stator bar water leak detection and identification
  • Stator bar leak repairs by brazing or VPI
  • Stator bar replacement
  • Stator endwinding repairs
  • Stator slot wedge replacement

REFERENCE WORK

Our experience list in Australia includes the following projects:
  • Eraring Unit 2 stator rewedge (660MW Toshiba)
  • Eraring Unit 2 rotor – retaining ring removal, partial wedge replacement and modification
  • Eraring Unit 2 stator bar leak repairs using CERT method and VPI method
  • Bayswater Unit 2 stator rewedge (660MW Toshiba)
  • Bayswater Unit 4 HV bushing replacement
  • Shell Clyde Refinery TA1 rotor rewind, stator rewedge and endwinding repair (Siemens 5MW)
  • Rewind and modification of NSW system spare generator rotor (Toshiba 660MW)