A complete substation on a single trailer — for outages, upgrades, and grid expansion — engineered to your specification and delivered in 10 to 12 months.
Buy American & BABA Compliant
Certified to IEEE, ANSI & NEMA Standards
Backed by 25 Years in the Industry
| Category | Specification |
|---|---|
| Capacity Range | Up to 100 MVA |
| HV Winding Voltage | Up to 230 kV |
| LV Winding Voltage | Up to 69 kV |
| Phases | Single-phase and three-phase |
| Tap Changer | On-Load Tap Changer (OLTC) available |
| Cooling Methods | ONAN / ONAF (specified per load profile) |
| Winding Material | High-conductivity copper (standard) |
| Insulation Medium | Liquid-immersed mineral oil |
| Mounting | Semi-trailer or skid-mounted |
| Integration | Transformer, switchgear, protection & controls — fully integrated |
| Standards | IEEE C57, ANSI, NEMA |
| Compliance | Buy American Act (BAA), BABA, §303 Defense Production Act |
| Factory Testing | IEEE C57.12.90 routine and type tests; full test report included |
| Lead Time | 10–12 months |
| Manufacturing | United States |
A LIMIK mobile substation is a complete, transportable substation on a single trailer: power transformer, high- and low-voltage switchgear, protection relays, and controls — integrated, tested, and ready to energize on arrival. Where a fixed substation takes months to build, a mobile unit restores power in days.
Every unit is engineered to your system — voltage class, MVA rating, protection scheme, and trailer configuration — and built to move. Size and weight are optimized against road restrictions without compromising the robustness the grid demands. Each mobile is factory-tested to IEEE C57.12.90 before it ships.
Need the transformer alone? LIMIK also supplies mobile power transformers — the transformer unit on its own, for utilities that already have switchgear and controls in place. A mobile substation is a turnkey system; a mobile transformer is a single component. We build both, to your specification.
Rapid replacement when a substation transformer fails. Restore service in days while the permanent unit is repaired or replaced.
Keep the load online during substation maintenance, refurbishment, or capacity upgrades — no interruption to customers.
Provide temporary service while a new substation is built, or bridge capacity as load grows and renewables come online.
Deployable power for storm recovery, grid emergencies, and mission-critical DOD and DOE sites. §303 Defense Production Act compliant.
No layers between you and the people building your unit. Your project is designed, tested, and supported by the same engineering team from first drawing to energization.
Factory-tested to IEEE C57.12.90 before it ships, with a complete test report included — so you know exactly what's arriving before it does.
Trailer configuration is engineered against the specific road and bridge restrictions of your delivery route — not a generic transport spec.
High-conductivity copper windings standard. Buy American, BABA, and §303 DPA compliant on every unit.