Mobile Transformers
Trailer-mounted mobile substation transformers engineered for rapid network restoration and temporary supply during planned and unplanned outages. Up to 5 MVA at 33 kV — deployable by road within hours by a small commissioning crew.
Engineering Features
Trailer-Mounted for Rapid Road Deployment
Mounted on a road-going trailer (≤ 44 t GVW) with integrated jacks and tie-downs — deployable to site by road and energised within hours of arrival.
Technical Data
| Parameter | Range / Value |
|---|---|
| Rated Power | Up to 5 MVA |
| System Voltage | Up to 33 kV |
| Frequency | 50 / 60 Hz |
| Cooling | ONAN |
| Insulation Fluid | Mineral oil (ester optional) |
| Insulation Class | Per voltage class |
| Tap Changer | DETC ±2 × 2.5% |
| Enclosure | Outdoor IP54 / road-rated |
| Standards | BS EN 60076 / IEC 60076 / ISO 9001 |
| Design Life | 30+ years |
Standard range parameters — custom specifications available on request.
IEEE C57.12
ANSI/IEEE distribution transformer standard
ANSI C57.12.00
General requirements liquid-immersed
DOE 2016
US Department of Energy efficiency rule
NEMA TR1
Sound level & loss tolerances
UL Listed
Underwriters Laboratories safety mark
IEEE C57.110
Harmonic-loaded transformer rating
Trailer-mounted mobile substation transformers for US utility, industrial and disaster-response service. Up to 5 MVA at 34.5 kV per IEEE C57.12 — deployable by road within hours for rapid network restoration after storm damage, transformer failure or wildfire, and for planned outage cover at utility, mining and construction sites across North America.
Where Mobile Transformers Excel.
Emergency Network Restoration
Mobile emergency substations for rapid restoration after transformer failure, fire damage or flood at primary and secondary substations.
Planned & Unplanned Outage Cover
Temporary power for planned substation refurbishment, transformer replacement projects and unplanned outage contingencies.
Event & Construction Temporary Supply
Temporary MV/LV supply for large construction projects, mining camps and major events where permanent infrastructure is not yet available.
DNO Contingency Fleets
Strategic spares held by Distribution Network Operators and large industrial estates as part of disaster-response and resilience plans.
Frequently Asked Questions
Ready to Specify Mobile Transformers?
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