Protech PAS Blog

Improving Quality of Work

Everyone loves receiving high quality work that shows that extra effort has been put into it, but not many people like to do it. With quality of work being of paramount importance in our workforce today, companies and people must continue to think of new innovative methods to help improve this and build a culture…

Staff Engagement Leading to Great Performance

We recently completed our ‘biggest job of the year’, the annual unit outage at Stanwell Corporation’s Stanwell Power Station (SPS). While we have completed this job in some degree for the last 15 years, this year has one significant difference – the level of staff engagement throughout the job. We have a very good track…

TechCon Aus-NZ 2019 Highlights

Last week, our team had the pleasure of attending the TechCon Aus-NZ 2019 in Sydney. The conference featured a diverse range of international speakers who addressed the issues that impact our industry, ranging from practical case studies to the latest research on asset management strategies for the aging electrical grid infrastructure. The theme of this…

Oil Filtering

Insulating Fluid is vitally important for the safe and efficient operation of many types of electrical equipment. In addition to its insulating properties, the fluid is used as a coolant in transformers and as a means of arc suppression in circuit breakers. In each case the operation of the electrical equipment depends on the purity…

Boral Switchboard, Darra, Queensland

Boral Bricks, based in Darra Queensland contracted Protech PAS to design and build a 415V switchboard for the plant 3 upgrade project. The built switchboard has the following characteristics: Width (metres) 6 Height (metres) 2 Depth (millimetres) 576 No. of Shipping Sections 5 Rated Voltage 415V Bus Bar Rating 2000 A Form to Australian Standards…

Earth Grids

Why a Grounding System? “A Grounding System is essential to limit the risk to people, equipment and system to operate within acceptable levels”. The fault current that flows in the earth can cause a considerable (GPR) Ground Potential Rise on earthing system causing the Touch Voltage, Step Voltage and Transferred Voltage which are the three…

Earthing System Design Parameters

Maximum substation fault level, maximum current grid-earth, soil resistivity testing, interpretation & modeling, clearance time, grounding grid, grounding grid resistance, GPR, Touch, Step & Transfer Voltage, Voltages Safety Limits, Surface Layer material, Bonding Arrangements. References: • AS 2067, Power Installations exceeding 1kV a.c. • IEEE Std 80’Guide for Safety in AC Subst. Grounding’ • ENA…

Barron Gorge

Barron Gorge This project involved the removal of two old 30 MVA oil insulated transformers and the installation of two new 39MVA GIS (SF6) TOSHIBA transformers at the Barron Gorge Hydro Power Station, just north of Cairns. The work proceeded and was completed ahead of schedule considering the work was undertaken in very cramped conditions…

Some of Protech PAS Completed Projects

Millmerran Power Station Commissioning and start up of all HV / LV equipment Generators, transformers, switchgear, protection testing & Input of Data Control equipment testing and function checks Phosphate Hill Mine Commissioning and start up of all HV / LV equipment Power system design Fault analysis Implementation of engineering design Transformers, switchgear and protection testing…

Stanwell Power Station, Stanwell Qld

Protech PAS provided staff during a 4 week outage to conduct significant inspections and maintenance on the generator, unit and excitation transformers, 275kV switchgear equipment, 6.6kV, 415V and 110VDc unit switchboards, auxiliary unit transformers and transformer rectifier units and HV cable repairs. Protech Power International has now been completing similar type outage works for Stanwell…