Custom & OEM Transformers
Power and distribution transformers built to your exact specification — any voltage, kVA, vector group and standard. OEM / private-label, factory-direct from China, backed by senior power-system engineers.
Send Your SpecWhat we customize
| Capacity | Custom kVA / MVA — from small distribution to large power units |
| Voltage | Any HV/LV class up to 1000 kV (project-grade), 35 kV & below standard |
| Type | Dry-type (cast resin / VPI), oil-immersed, pad-mounted, pole-mounted, box substation |
| Standards | IEC 60076, ANSI C57, UL / cUL, CSA, DOE efficiency |
| Custom params | Vector group, impedance, loss level, taps, cooling, enclosure, frequency (50/60 Hz) |
| Branding | OEM / private-label / your nameplate |
Send us a single-line diagram, datasheet or even a competitor nameplate — our engineers will design and quote a drop-in replacement built to Voltspan quality, IEC/ANSI/UL certified.
FAQ
Can you build a custom transformer to my exact specification?
Yes. Voltspan builds custom and OEM transformers to any voltage, capacity, vector group, impedance, loss level and standard (IEC / ANSI / UL). Send your single-line diagram or datasheet and we'll quote.
Do you offer OEM / private-label transformers?
Yes — we supply OEM and private-label transformers with your nameplate and branding, factory-direct from China with full test reports.