Power transformers
35–220 kV · up to 420 MVA
TIANYU ELECTRIC
Power Transformers
& Substations
35–220 kV power transformers, distribution transformers and prefabricated substations.
220 kV power transformer, outdoor substation installation
A century of switchgear and transformer manufacturing.
Tianyu Electric traces its origins to the Fuzhou Dazhong Machinery Factory, founded in 1920. The company was formed in 1995 from the merger of Fuzhou First Switchgear Factory, Fuzhou Transformer Factory and Fuzhou General Electric, and is today a wholly-owned subsidiary of XJ Group Corporation under China Electrical Equipment Group.
More than 30 product series cover primary power equipment up to 220 kV, supplied to projects in over 30 Chinese provinces and 28 countries.
Company profile- Plant area
- 100,000 m²
- Large production equipment
- 460 sets
- Test equipment
- 60 types
- Large power transformers
- 1,200 / year
- Distribution transformers
- 12,000 / year
- Box-type substations
- 10,000 / year
- Voltage
- Rating
From generation to load
Where Tianyu equipment sits in the power system.
Tianyu builds the equipment at every voltage step between a wind or solar plant and the final load, from 0.69 kV collection to 220 kV transmission.
Swipe sideways to follow the full diagram.
Select a transformer or substation to see its data. The highlighted route shows the energy path to it.
Three product families.
Complete product directory
Distribution transformers
35 kV and below · oil-immersed and dry-type
Prefabricated substations
7.2–72.5 kV · up to 15,000 kVA
Manufacturing
Core, coil and tank made under one roof.
Key processes from coil winding and assembly to logistics and testing run at over 95% automation. The lines use Stollberg winding technology, MICAVAC kerosene vapour-phase drying and fully automatic core cutting from Georg and Soenen.
- Large oil-immersed transformer winding line
- Dry-type coil vacuum casting and intelligent winding lines
- Robotic tank welding and C5-rated coating
Testing
Routine and type tests up to 220 kV.
The six-side shielded transformer laboratory has its own generator set and runs routine and type tests for transformers of 220 kV and below.
- Lightning impulse
- 2,400 kV
- Power-frequency withstand
- 300 kV
- Partial discharge
- 8 channels
Interactive guide · 8 steps
See how a power transformer is built.
Follow a three-phase oil-immersed power transformer from stacked core to factory test. Scroll the full guide to assemble it, or reverse to take it apart again.
240 MVA 220 kV
150 MVA 132 kV
1,600 kVA 22 kV
SCB18 2,500 kVA
12,500 kVA 35 kVProject map
International project references.
Select a location to open the project record.
- Application
- Product
- Scale
- BrazilCEMIG 155 MW Photovoltaic Project
- PakistanBCL Hattar Line 2 7200 TPD Cement Plant
- NigeriaAtlantic Industrial Park 132 kV Substation
- VietnamLong Son Company Cement Grinding Project
- UAEMethanol Dayyer Mobile Substation Export Project
- ZambiaSunshare Nambala 100 MW Solar Project
- DR CongoCMOC Mining Area 500 MW Solar Project
References
In service from the Three Gorges to Brazil.
| Brazil | CEMIG 155 MW photovoltaic | 29 × 35 kV prefabricated substations |
|---|---|---|
| Nigeria | Atlantic Industrial Park | 132 kV substation |
| Zambia | Sunshare Nambala | 100 MW solar |
| DR Congo | CMOC mining area | 500 MW solar |
| China | Three Gorges Project | ZN1-10 switchgear, 1998 |
| China | Shanghai World Expo venues | 16,000 kVA dry-type, 2010 |
Send us the single-line diagram or specification.
Our engineers review ratings, site conditions and required documents before quoting.