36 Bannick Court
Canning Vale WA, 6155

Synergy - Muja Power Station

Global Testing Services were engaged to replace the tap changer installed on the 16k/330kV 250MVA step up transformer for Unit 5 at Muja Power Station. The works included the design, implementation, testing and commissioning of the new tap changer.

Unit 5 Step Up Transformer Tap Changer Replacement

  • Location: Synergy - Muja Power Station
  • Commencement: October 2015
  • Completion: November 2015
  • Type of Contract: Lump Sum
  • Contract Value: AUD $0.5 Million


The scope of work included:

  • Disconnection and removal of the existing tap changer, motor drive and control cubicle.
  • Preparation, installation, testing and commissioning of new tap changer, motor drive and control cubicle.
  • Treatment of corrosive sulphur affected internal core and winding components.
  • Replacement of radiator throttle valves.
  • Full suite of electrical testing.
  • Repair of severe oil leaks and disturbed gaskets.
  • Transformer oil regeneration.

Project Challenges

GTS had to manage a heavy workload for its personnel combined with very tight deadlines imposed by the client throughout the duration of the works. GTS worked collaboratively with the client and developed a variety of innovative techniques to manage fatigue and safety throughout the project.

Zero Harm

The works were conducted without safety or environmental incident. Synergy have expressed their delight in the quality and standard of work delivered by GTS and highlighted their satisfaction in a company newsletter. (MTIs:0 LTIs:0)


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We take great pleasure in ensuring our clients get the specialised service they have come to expect from Global Testing Services.


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