750 kva 3 phase step up transformer
Your site’s running on 208 or 240V—but the system you just bought needs 480 or 600V. That’s where we come in. A 750 kVA step-up transformer takes care of the gap—no rewiring, no converter headaches.
We build dry-type units exactly to your voltage. 208 to 480? Done. 380 to 600? We’ve done it for data centers, OEMs, and factories alike. Copper or aluminum, side feed or top entry—we’ll build it how you need it. UL and CE? Absolutely.
Send us the specs. We’ll get you the right unit, first time.

Photovoltaics – Bakersfield, California, USA
A solar EPC in Bakersfield was integrating a rooftop PV array with battery backup. Their inverter bank output 208V three-phase, but the utility interconnect required 480V. They didn’t want to replace the inverter stack or add extra stages of conversion.
We built and shipped a 750 kVA 3 phase step up transformer, 208V to 480V, dry-type, copper windings, and floor-mounted with side terminal access. The transformer was installed between the combiner and the point of interconnect, handling the full export load.
The PM emailed post-commissioning: “You saved us re-engineering the layout. Voltage held steady under max load.”
Energy Storage – Austin, Texas, USA
A commercial BESS integrator in Austin was pairing a 600V battery system with a 208V inverter output. The challenge? The facility’s grid-tie point required 480V three-phase. The client asked: “Can we avoid using two transformers or full rewiring?”
We provided a 750 kVA step up transformer, dry-type, rated 208V to 480V. It featured Class H insulation and was housed in a sealed indoor enclosure inside their O&M building. The unit took inverter output directly and fed the main panel with no extra conversion stages.
After one month of runtime, their ops lead said: “It’s quiet, cool, and solved the mismatch without touching the batteries.”


Data Center – Frankfurt, Germany
During a generator-backed upgrade at a Frankfurt colocation site, the facility team faced an issue: their diesel generator system output 400V three-phase, but most of their switchgear and UPS banks operated at 480V. Space was tight, and downtime wasn’t an option.
We delivered a 750 kVA 3 phase step up transformer, 400V to 480V, dry-type, aluminum wound, with a compact vertical form factor and front terminal access. It was placed inside the generator corridor and wired into the ATS feed.
Site manager told us: “The dimensions were exact. No delays. It dropped right into our timeline.”
Wind-to-Hydrogen – Galicia, Spain
A renewable hydrogen pilot project in Galicia was using 690V wind turbine output stepped down to 208V for DC rectifiers—but the hydrogen controller and power distribution system required 480V. Rewiring would void turbine certifications.
We supplied a 750 kVA dry-type step up transformer, 208V to 480V, epoxy-sealed for coastal humidity, Class H insulated, with top-entry terminals for pre-routed cables. It sat on an integrated skid between the turbine rack and the H2 plant PLC.
The on-site engineer reported: “We didn’t modify the turbine, didn’t touch control wiring—still got full system sync.”


Medical – Vancouver, Canada
A large research hospital in Vancouver was adding a new radiology suite. Their imaging units came factory-rated for 480V input, but the building’s available feed in that wing was 240V three-phase. Their facility lead was clear: “We can’t rerun feeders from the basement.”
We delivered a 750 kVA 3 phase step up transformer, 240V to 480V, dry-type, ultra-low noise core, enclosed in an IP23 cabinet. The unit was placed behind the utility wall of the MRI room and connected through a shielded junction box.
Facilities director later said: “We ran 9 months with zero service calls on this feed. That says everything.”
- Data Sheet
- Three Phase Transformer Catalog
- Shinenergy Product Catalog
Certification | UL |
Phase | Three Phase |
Rated capacity | UP TO 3000KVA Customized |
Frequency | 50/60Hz |
Work Efficiency | UP TO 99.05% |
Protection Class | IP00/IP20/IP23/IP40/IP44/IP54 |
Winding Material | Copper or Aluminum |
Insulation level | Class F (155°C) Class H (180°C) Class N (200°C) Class R (220°C) |
Designed lifetime | ≥30 years |
Cooling Method | Air Cooling |
Wiring Configuration | Δ-Y (Delta-Star)/Y-Y (Star-Star)/Δ-Δ (Delta-Delta)/Y-Δ (Star-Delta) /Δ-Z (Delta-Zigzag)/ Y-Z (Star-Zigzag) |
Noise | ≤35 dB (1 meter) |
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Need 480V from a 240V Line? We Build Step-Up Transformers That Just Work.
If your site runs on 240V three-phase, but your equipment is rated for 480V, you’re not alone—and you’re not stuck. We build 3 phase step up transformers (240V to 480V) that bridge the gap cleanly. No reworking your panels. No oversized solutions. Just the right transformer for the job.
From small manufacturing lines to HVAC upgrades, from export systems to generator step-up—we’ve seen it all. Our transformers are dry-type, sized from 75 kVA to 1000+ kVA, and built for real-world installs. We support copper or aluminum windings, Class F or H insulation, and top/side terminal access to match your wiring layout.
And we don’t just ship parts. Each unit is made to order, tested under load, and delivered with a wiring diagram labeled to your input/output. You send us the voltage range, the load amps, and the install constraints—we send back a transformer that lands clean and performs without surprises.
Our step up transformers are running today in U.S. schools, Philippine factories, German datacenters, and rooftop solar platforms across California. Whether you’re fixing a mismatch or planning for an upgrade, we help you step up—without stepping over budget or timeline.
🔧 How We Build It—and Why It Lasts
We don’t mass-produce and relabel. Every transformer starts with your voltage spec and application type. Coils are machine-wound in-house and matched to your insulation rating, enclosure level (IP00–IP54), and wiring orientation. Terminal connections are pre-labeled to cut your install time.
Before shipping, each transformer is tested at full rated voltage. No skip testing. No batch assumptions. You get a test report with output confirmation, terminal markings, and impedance values. We take that seriously—because when you wire it in, it needs to just work.
Bottom line?
We build transformers that solve voltage problems the first time. Tell us your load and your line voltage—we’ll take care of the rest.
Yes, that’s one of the most common use cases. If your panel provides 240V three-phase and your unit is rated for 480V, a 240 to 480 step up transformer will get you there without modifying the HVAC gear.
It’s all about the input voltage. The first phrase is general; the second means you’re going from 208V to 480V, which we support up to 1000 kVA in dry-type builds.
Yes. 75 kVA is a standard size. We build compact, dry-type models with top or side terminals that can fit utility rooms, backboards, or tight panel zones.
We include a step up transformer wiring diagram with every unit—plus a terminal label. If you need open delta or Y-Y configuration, just tell us. We prep for that.
Not for this voltage class. What you need is a 3 phase transformer, step-up style. Single-phase to 3-phase involves a converter system, not just a transformer.
That’s common in export applications, especially shipping U.S. machines to Europe or Asia. We support step up transformer 220V to 380V 3 phase Philippines configurations too.
Ours are cleaner. Each unit ships with a custom step up transformer diagram for your input/output spec—no guessing.
Yes, we build 3 phase 208V delta to 480V Y/277 step up transformer units with precise winding setup. Just specify your system type—we’ll prep it.
Yes, but those often fall under buck-boost transformers. For pure step up transformers 208 to 230 3 phase, we’ll help confirm if full-size or compact works best.
No problem. Ask us during quote, and we’ll send how to wire a 3 phase step up transformer guides, diagrams, and photos tailored to your unit.