3150 kVA Transformer
The upper end of standard distribution transformer ratings; transportation and access planning is critical.
A 3150 kVA transformer is a three phase distribution transformer rated at 3150 kVA, used to step medium voltage — typically 11 kV, 22 kV or 33 kV — down to a low voltage such as 400 V or 415 V for industrial and commercial distribution.
The upper end of standard distribution transformer ratings; transportation and access planning is critical. Available in oil immersed and dry type construction, with copper or aluminium windings and ONAN, KNAN, AN or AF cooling depending on the installation.
Technical Specifications
| Parameter | Typical Value |
|---|---|
| Rated power | 3150 kVA |
| Phase | Three phase |
| Primary voltage | 11 kV / 22 kV / 33 kV |
| Secondary voltage | 400 V / 415 V |
| Rated LV current (400 V) | 4547 A |
| Rated HV current @ 11 kV | 165.3 A |
| Rated HV current @ 22 kV | 82.7 A |
| Rated HV current @ 33 kV | 55.1 A |
| Frequency | 50 Hz or 60 Hz |
| Vector group | Dyn11 |
| Impedance | 4% – 6% typical |
| Cooling | ONAN / KNAN / AN / AF |
| No-load and load losses | Hebei Youge Electrical Equipment Co., Ltd. — per certified datasheet |
| Standards | IEC 60076 / IEEE C57.12 |
Typical values for this product family. Insert your certified datasheet values before publication — Hebei Youge Electrical Equipment Co., Ltd..
Typical Applications
Heavy process industry, large campuses, utility-style distribution substations
- Factory power distribution
- Industrial plant substations
- Manufacturing facilities
- Commercial building intake
- Office buildings and malls
- Hospitals and hotels
Sizing Check
Before ordering, confirm the rating against your connected load, diversity factor, power factor, largest motor starting condition and planned expansion. Send us the load list and we will verify the size for you — or use the calculator guidance in our transformer sizing articles.