Transformer Maintenance
Take a look at our comprehensive maintenance services dedicated to ensuring the optimal performance of a wide range of transformers.
Regular maintenance for longevity
Our team of technicians provide our customers with comprehensive high voltage testing, diagnostics, and condition assessments. Regular maintenance of transformers leads to longevity.
Transformer Maintenance Services
Field Services
We provide a comprehensive range of onsite services, ensuring operational availability and compliant management of transformers of all sizes across Australia. Our site-based refurbishments include:
Winding dry outs
Winding set clamp re-tensioning
Paper samples
Comprehensive internal inspections and engineering assessments
Re-gasketing and general refurbishment
Bushing retrofits
Oil treatment and replacement
Design modifications
Painting
Protection system upgrades and calibration
Maintenance and management planning
Fault repairs
OLTC maintenance and refurbishments.
Electrical Testing
We provide onsite services for electrical testing of transformers which are supported by comprehensive workshop facilities and experienced design engineers. Our complete range of transformer testing includes:
Ratio
Phase error
Power factor
Winding resistance
Insulation resistance
Dirana
Dielectric loss angle (tan Delta)
Polarisation index
Magnetising curve
Burden
Sweep frequency response analysis
Excitation current
Leakage, resistance, and impedance
Sensor testing and calibration.
Onsite High Voltage Transformer Testing
We maintain a comprehensive mobile high voltage (HV) test capability (single phase) including 36kV AC, 200kV AC and 720kV AV (resonate) mounted on dedicated heavy vehicles. This capability is extended by several uncommitted HV sources that can be transported to site as required, ranging from 22kV AC – 100kV AC as well as 52kV AC p-p, 3ph switchboard test set.
Remote Transformer Condition Auditing and Diagnostic Support
Our engineering, testing and monitoring team is experienced in failure investigation on all types of high voltage (HV) plants. We help our customers identify the cause of their equipment failure and liaise with OEMs for rectification works or warranties.
Our experts consolidate data generated by your transformers into an assessment describing the transformer condition, including failure risk. Our skilled people not only diagnose issues but work with you to put a repair plan in place.
This remote condition monitoring service will provide the information required for you to understand the health of your transformers and to prioritise corrective measures to extend asset life, prevent failures and ensure safe operation of assets.
Overhauls, Upgrades and Rewinds
Our purpose-built transformer facilities and our skilled technicians can overhaul and upgrade your transformer to complement site works. We have the capacity to overhaul transformers up to 50MVA, 132kV and weighing up to 80 tonnes. Our services include:
Transformer upgrades
Replacement of gaskets and service bushings
Winding repairs and replacement
Controlled oven drying of windings
Tank repairs and modifications, repainting, vacuum, and pressure testing
Fitting of additional protection devices and cable boxes
Tap changer service or replacement
Oil leak repairs
Full testing to Australian standards.