At Pump Solutions Australasia (PSA), we thrive on solving real-world problems with smart, practical engineering. One such challenge came from a client in the transformer servicing industry who needed a compact, mobile oil filtration system to remove moisture from the oil in high-voltage transformers.
The Problem
Moisture contamination in transformer oil is a serious issue—it reduces insulation effectiveness, leads to electrical breakdowns, and drastically shortens transformer lifespan. Our client had a large-scale filtration system mounted on an 8-ton truck, but this setup couldn’t access confined spaces such as basements, service rooms, or tight walkways in processing plants. They needed a solution that could go where the truck couldn’t—without compromising on performance or safety.
Our Solution
PSA designed and manufactured a completely self-contained, trolley-mounted transformer oil filtration unit, purpose-built for portability, precision, and safety. Compact enough to fit into a service lift or navigate narrow walkways, yet powerful enough to handle the job, this unit offers a true turnkey solution.
System Highlights
- Specialised oil pump designed specifically for transformer oil applications
- Custom-fabricated filter housings with multi-stage filtration, including pre-filtration elements
- Integrated safety systems, including:
- Flow meters to track oil throughput
- Pressure gauges and pressure safety switches to monitor and protect against overpressure
- Fully bunded tray to contain any potential oil leaks
- High-level float switches in the bund that automatically shut down the system if liquid is detected
- Secondary external bund tray (added in later versions) for the transformer hose connection point, also fitted with float-based shutdown protection
Advanced Monitoring and Control
The system is equipped with Vaisala moisture probes, providing real-time readings of:
- Parts per million (ppm) moisture content
- Oil temperature
- Relative saturation levels
To ensure peace of mind and full control, PSA integrated a custom-built control system with:
- Remote SMS alert functionality for any operational issues
- Remote start/stop capability (in later versions), enabling operators to manage the system from offsite locations
The Result
The first units revolutionised the way our client serviced transformers, offering unmatched mobility, reliability, and data accuracy. Since the launch, several units have been built and deployed for their operations across various mining and industrial sites. In fact, the innovation has been so well received that mining clients have approached PSA directly to order their own custom-built filtration systems.
This project is a perfect example of how PSA delivers practical innovation, high-end engineering, and long-term value—all in a fully turnkey package.
When standard solutions won’t fit, PSA engineers something better.
Partner with PSA
When standard solutions won’t fit, PSA engineers something better.