Transformers for Factories
Factory loads start motors, run welders and feed production lines that do not stop for a voltage dip. We size transformers for the starting current and the duty cycle, not just for the nameplate kVA.
What the load looks like
- Motor starting current and the voltage dip it causes on the bus.
- Welding sets and other loads that pull current in short, sharp bursts.
- Production lines that run two or three shifts without a cooling-down period.
- Power factor correction equipment already on the board.
What we recommend
Oil Immersed Transformers
Outdoor substation beside the plant. 250 kVA and up.
Dry Type Transformers
Indoor plant rooms where oil is not allowed.
Industrial Transformers
Larger blocks and process loads.
Specification notes
| Typical rating | 315 – 2500 kVA |
|---|---|
| Primary voltage | 11 / 22 / 33 kV |
| Secondary voltage | 400 / 415 V |
| Frequency | 50 Hz or 60 Hz |
| Vector group | Dyn11 |
| Impedance | 4 – 6% to limit fault level |
Practical notes
- Leave clearance around the tank or enclosure for airflow and for pulling the unit out.
- Check the floor loading before you place a 2000 kVA unit on a slab.
- Ask for the temperature indicator contacts to be wired to the plant alarm.
- Plan the cable route and the gland plate before the concrete goes in.
Questions buyers ask
Typically 30 days after drawing approval, depending on the quantity.
Yes. Test report, outline drawing and a terminal diagram go out with the unit.
Usually. Send the old nameplate or the outline drawing and we will check the footprint, terminal positions and loss figures before quoting.
Rating, primary and secondary voltage, frequency, vector group, quantity, application and the ambient conditions. A drawing or a nameplate photo settles the rest.
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