Transformer Overhauls & Rewinds

Tyree Transformers provides overhaul and rewind services for all of the Tyree transformer product range at our purpose facilities at Mittagong NSW. Our engineering and production team are highly skilled in the diagnosis of transformer faults and their repair’ including specialised transformers designs for rectifier, furnace, traction, auto transformers and reactors.

In addition to supporting Tyree designed transformers we also offer overhaul and rewind services for other manufacturer’s products

Overhaul services include but are not limited to:

  •  Drain, disassemble, transport from site  – See field services page for more details
  • Incoming testing upon receipt and reporting to AS 60076
  • Strip down and abrasive blast cleaning of all components to AS 1627
  • Painting of all components to suit our customers’ requirements. Tyree can offer protective coatings to cover all corrosion levels as outlined in AS/NZS 2312 and galvanising to AS/NZS 4680
  • Regasketing using high quality neoprene/cork, o-rings or seals as required
  • Cleaning, sludge removal, dryout and reclamping of active part assembly using modern techniques and vacuum dryout process
  • Refurbishment/replacement/modernisation of all ancillary components and protection devices
  • Regeneration or supply new oil (Inhibited/non inhibited mineral or Natural esters)
  • Outgoing testing to AS60076
  • Transport to site, assembly and commissioning testing

In addition to the general overhaul scope some common customisation and upgrades offered include:

  • Vector change
  • Power up rating with fans or using thermally upgraded insulation
  • Control system upgrades to comply with AS3000 and/or SCADA integration
  • In house engineering and fabrication of skids, cable boxes, surge arrestor brackets etc
  • Plug in bushings or Cable box additions
  • A full range of protection and condition monitoring devices are available