About us
Engineered to
your specification.
Trafowell | MegaVolt Group designs and manufactures cast-resin and oil-immersed transformers for utilities, industry and renewable energy. Made in Germany.
Engineered to
Who we areTransformers built around the job they do
We design and build power transformers for utilities, industrial plants and renewable energy projects. Our range covers compact distribution units through to large power transformers of up to 500 MVA and 750 kV.
No two installations are the same, so every unit starts with the customer’s specification: voltage, power, cooling, tap changing and the conditions on site. Each transformer is then built and tested to international standards before it leaves the factory.
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What we doOne partner for the full range
Engineering to specification
Power class, voltage, cooling (ONAN, ONAF, OFAF, OFWF), on-load or no-load tap changing and site conditions, including arctic ratings down to −50 °C.
Certified quality
Built and tested to ISO 9001:2015, IEC 60076 and IEC 60076-11, with guaranteed loss values to EU 548/2014 Tier 2 and DIN EN 50588-1. GOST on request.
Delivery and support
Express delivery for distribution transformers. All ratings and prices are quoted on request, with engineering support from enquiry to commissioning.
ISO 9001:2015IEC 60076IEC 60076-11EU 548/2014 Tier 2DIN EN 50588-1Fire Class F1Climate Class C5Ambient Class E4
Product rangeWhat we build
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Transformers & reactors
Dry-Type Cast Resin TransformersPower TransformersDistribution TransformersConverter TransformersRectifier TransformersRegulating TransformersStarting TransformersTesting TransformersReactors & Choking CoilsThawing & Pipeline Heating TransformersRenewable Energy TransformersCustom & Special Purpose Transformers
IndustriesWho we work for
- Utilities and grid substations
- Industrial plants and facilities
- Renewable energy: wind and solar
- Electrolysis, electroplating and arc-furnace DC supply
- Traction, rail and UPS systems
- Motor starting and drive systems
- Oil, gas and pipeline heating
Get a quoteHave a specification?
Send us your requirements and our engineers will come back to you with a tailored offer.
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