
Manufacture of dry-type transformers and chokes/inductors for rail, offshore, marine, energy and industry

Hitachi Energy Dry Transformers Switzerland SA (Trasfor)
Monteggio (Ticino), SwitzerlandNew on Amplifa
About Trasfor
Trasfor was founded in 1967 as Trasfor SA and has been part of Hitachi Energy since 2021. The company now operates as Hitachi Energy Dry Transformers Switzerland SA, while Trasfor remains a registered trademark identifying the company's dry-type transformers and chokes (reactors/inductors). Transformers and electromagnetic components are manufactured for a wide range of industrial applications, especially in rail traffic, on offshore platforms, in shipping, in power generation and in general industry. In addition to its product business, the in-house service department offers a worldwide technical service portfolio: from engineering studies to commissioning and maintenance through to 24/7 emergency response, thermographic inspections as well as vibration and shock monitoring. The site and headquarters is Monteggio in the Swiss canton of Ticino, from where deliveries are made worldwide.
- Site
- CH-6998 Monteggio
- Processes
- Manufacture of dry-type transformers and chokes/inductors (dry-type transformers and reactors), Consulting, Maintenance, Technical Assistance & Service for transformers (Commissioning,, Project-specific engineering studies and product development (electrical, mechanical and, Thermographic inspections, vibration and shock monitoring with technical equipment, On-site service and emergency intervention worldwide (24 HRS Emergency Support), Worldwide consulting, Maintenance, Technical assistance
- Materials
- Copper (implied by transformer/inductor windings), Copper, Electrical steel sheet
- Certificates
- 24/7 emergency service, Worldwide on-site service, Spare parts service, Thermography & monitoring
- Founded
- 1967
- Industries
- Rail transport (railways), Offshore/oil platforms, Shipping (marine), Power generation (power), Renewable energies, Industry
- 01
Engineering and project-specific studies
- 02
Manufacture of dry-type transformers and chokes/inductors
- 03
Commissioning
- 04
Maintenance and spare parts service
- 05
Thermography, vibration and shock monitoring
- 06
24/7 on-site emergency service worldwide
Manufacturing & Components
Copper
Winding material for transformers and chokes/inductors
Electrical steel sheet
Material for cores and magnetic parts of the electromagnetic components
Locations
Monteggio
CHHeadquarters and production site
- Materials
- Copper, electrical steel sheet
- Technical equipment for thermographic studies
- Equipment for vibration and shock monitoring
Products & Components





Inside the production




Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Manufacture of dry-type transformers and chokes/inductors (dry-type transformers and reactors)Engineering | – | – | – | – | Copper, Electrical steel sheet |
| Consulting, Maintenance, Technical Assistance & Service for transformers (Commissioning,Assembly | – | – | – | – | – |
| Project-specific engineering studies and product development (electrical, mechanical andEngineering | – | – | – | – | – |
| Thermographic inspections, vibration and shock monitoring with technical equipmentTesting | – | – | – | – | – |
| On-site service and emergency intervention worldwide (24 HRS Emergency Support)Assembly | – | – | – | – | – |
1 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| Technical equipment for thermographic studies as well as vibration and shock monitoring | – | – | – | – | Monteggio, Switzerland |
Additional services
Service & Quality Management
Trasfor Service accompanies transformers throughout their entire life cycle – from commissioning to scheduled and unscheduled maintenance through to 24/7 emergency response. For in-depth analyses, thermographic studies, vibration and shock monitoring are available, as well as specialist engineers for electrical, mechanical and structural issues.
| Evidence | Monteggio |
|---|---|
| 24/7 emergency service | |
| Worldwide on-site service | |
| Spare parts service | |
| Thermography & monitoring |
History
- 1967
Founded as Trasfor SA
- 2021
Part of Hitachi Energy; now operates as Hitachi Energy Dry Transformers Switzerland SA, Trasfor remains a registered trademark