Transformers for Mining
Mine sites are the hardest place to keep a transformer alive. Dust, vibration, wide temperature swings and crushers that pulse the load. We build units for surface and open pit operations, mobile substations and processing plants, with enclosures and protection chosen for the site rather than a catalogue default.
What the load looks like
- Crushers, mills and conveyors with heavy starting torque.
- Dust ingress that finds every gap in an ordinary enclosure.
- High altitude sites where the air cannot carry away as much heat.
- Long cable runs from the switchyard to the load centre.
- Voltage drops that show up at the far end of the pit.
What we recommend
Oil Immersed Transformer
Outdoor pad or pit side, sealed tank, dust resistant.
Compact Substation
Skid mounted package with MV switchgear and transformer in one unit.
Dry Type Transformer
Processing plants and indoor MCC rooms.
Specification notes
| Typical rating | 500 – 5000 kVA per unit |
|---|---|
| Primary voltage | 6.6 kV, 11 kV, 22 kV, 33 kV |
| Secondary voltage | 400 V, 415 V, 690 V |
| Type | Oil immersed, sealed tank or conservator |
| Cooling | ONAN, ONAF |
| Enclosure | IP23 to IP54 as required by site |
| Altitude | Up to 3000 m with derating |
| Standards | IEC 60076 |
Practical notes
- Tell us the altitude. Above 1000 m the current rating has to be derated.
- Sealed tank or conservator, depending on how often the site can do oil checks.
- Anti-corrosion finish matters more than it does in a plant room.
- Mobile units can be mounted on skids or a trailer for pit moves.
Questions buyers ask
Yes, with derating. Give us the altitude and the ambient and we will set the rating accordingly.
IP54 for the enclosure with sealed bushings, plus a sealed tank. The exact level depends on the dust type at site.
Yes. Compact substations with the MV switchgear, transformer and LV panel on one skid.
Typically 30 days after drawing approval for standard ratings.
Send us the specification
Rating, primary and secondary voltage, frequency, quantity and the application. We answer within one working day.
Email info@xsdfftransformer.com · WhatsApp +852 54162620