Distribution Transformer
We supply distribution transformers to factories, industrial plants, manufacturing facilities, commercial buildings, hospitals, hotels and shopping malls, as well as to electrical contractors, MEP…
A distribution transformer is the final voltage conversion step in an electrical power system: it steps medium voltage — typically 11 kV, 22 kV or 33 kV — down to a usable low voltage such as 400/415 V for motors, machinery, lighting, HVAC and building services.
We supply distribution transformers to factories, industrial plants, manufacturing facilities, commercial buildings, hospitals, hotels and shopping malls, as well as to electrical contractors, MEP contractors and transformer distributors. Whether you need a standard rating or a unit engineered around a specific load profile, the design starts from your actual demand, installed environment and local grid conditions.
Technical Specifications
| Parameter | Typical Value |
|---|---|
| Rated capacity | 500 – 3150 kVA (other ratings on request) |
| Primary voltage | 11 kV / 22 kV / 33 kV |
| Secondary voltage | 400 V / 415 V / 433 V (or as specified) |
| Frequency | 50 Hz or 60 Hz |
| Phase | Three phase |
| Cooling | ONAN / KNAN / AN / AF |
| Insulation | Class A / Class F / Class H (dry type) |
| Winding material | Copper or aluminium |
| Vector group | Dyn11 (other groups on request) |
| Impedance | 4% – 6% typical |
| Off-circuit tap changer | ±2 x 2.5% or ±5% |
| Standards | IEC 60076 / IEEE C57.12 / local grid standard |
| Installation | Indoor or outdoor |
Typical values for this product family. Insert your certified datasheet values before publication — Hebei Youge Electrical Equipment Co., Ltd..
Applications
- Factory power distribution
- Industrial plant substations
- Manufacturing production lines
- Commercial building risers
- Hospital essential power
- Hotel and mall LV distribution
Advantages
- Engineered around your real load profile, not a catalogue guess
- Low no-load and load losses for lower lifetime operating cost
- Available in oil immersed and dry type constructions
- Copper or aluminium windings to match budget and duty
- Designed for tropical, coastal, dusty and high-altitude sites
- Routine and type testing before dispatch
Customization Options
- Capacity and voltage ratio
- Cooling method (ONAN / KNAN / AN / AF)
- Copper or aluminium windings
- Enclosure and IP rating for indoor or outdoor duty
- Protection accessories: temperature monitoring, Buchholz relay, pressure relief, surge arresters
Manufacturing, Testing and Standards
Every unit is built under documented process control and subjected to routine tests before dispatch: winding resistance, voltage ratio and vector group, impedance voltage and load loss, no-load loss and current, applied and induced voltage dielectric tests, and functional checks of accessories. Type tests — including lightning impulse, temperature rise and short-circuit withstand — are available for new designs and project requirements. See our testing and quality control pages.