High-voltage networks don’t always need full replacement, but they do need to keep pace with operational demands, safety standards, and asset condition. Powerex Services delivers high voltage retrofits and upgrades that improve reliability, extend service life, and reduce the risk of unplanned outages.
We regularly support sites by identifying retrofit or upgrade opportunities during maintenance. We assess what’s working, what isn’t, and what can be improved, then deliver upgrades that make sense for the asset, the site, and its future operation.
Where required, we also design and install new high-voltage equipment as part of staged upgrades or broader infrastructure improvements.
Circuit breakers are critical to safe system operation and are often among the first components to show age-related issues. We deliver targeted circuit breaker retrofits that replace worn or obsolete components.
Powerex supports substation upgrades focused on improving safety, performance, and long-term operability. This includes modernisation works, switchgear replacement, system optimisation, and end-of-life equipment replacement.
Outdated protection systems increase risk and limit system performance. We deliver protection system upgrades including relay replacement, settings review, and coordination improvements to ensure faults are detected and cleared correctly. These upgrades help improve safety, reliability, and compliance across the network.
Outdated protection relays, worn mechanisms, degraded insulation, or obsolete control systems can limit the reliability of otherwise sound equipment. Without intervention (and compounded by older components being more difficult to source), sites are often pushed into forced shutdowns and reactive replacements rather than planned upgrades.
Retrofits and upgrades address these issues before they escalate. By improving critical components and bringing systems back into alignment with current operational and compliance requirements, sites can extend asset life, reduce risk, and avoid the cost and disruption of full replacement.
Between our Directors, we bring 30 years of high-voltage experience. That experience shows up in how we plan work, identify risk early, and make sound decisions on live sites, especially when conditions change or the pressure is on.
We are expert high voltage technicians, but if specialist input is required, we bring it in. We don’t stretch our capability or sell solutions we can’t stand behind.
Good outcomes matter to us. We don’t rush or leave loose ends. High-voltage systems demand discipline and a keen eye for detail, and that’s exactly how we work. When we finish a job, it’s because the system is doing exactly what it should.
Retrofits are a great solution for small failures when the remainder of the system is still serviceable.
Carefully choose to upgrade equipment that is near end of life prior to it failing. Use planned outages to make upgrades to avoid unplanned outages during operation due to failure.
In our books, an upgrade improves the performance or capability of existing equipment, while a retrofit involves replacing specific components within a larger asset. In most cases, we recommend targeted upgrades to extend service life and improve reliability, often bringing equipment back to a 30-to-40-year operating horizon.
Response times depend on site location, scope, and urgency. We prioritise critical works and work closely with project teams to meet commissioning deadlines wherever possible.
With our operations based in Brisbane, we service sites throughout Queensland, Australia, and the Pacific Islands. Wherever your high-voltage system is located, Powerex can deliver the testing and commissioning support you need. Contact our team to discuss your requirements.
Get in touch with Powerex Services to keep your high voltage assets operating safely and reliably through disciplined operations and preventative maintenance.