Industrial loads are unforgiving. Large motors start against near-full voltage, processes cannot tolerate an unexplained trip, and the plant usually grows in stages rather than all at once. The distribution system has to be designed around those three facts.
We supply the substations, the transformers and the switchgear for plants of that kind, sized from your load list rather than from a catalogue.
How We Approach a Plant Distribution System
- Start from the load list – with the diversity you actually expect and the starting currents of the largest motors.
- Place the substations near the load – shorter cable runs mean lower voltage drop and less copper.
- Allow for the next stage – a spare feeder and some transformer headroom cost far less now than a second substation later.
- Separate the critical loads – so a fault on a non-essential feeder does not stop the process.
Equipment We Supply for Plants
| Equipment | Where it goes | Typical choice |
|---|---|---|
| Compact substation | Next to the load centre, outdoors | Oil-immersed, 500 kVA to 3,150 kVA |
| Dry-type transformer | Indoor substation or production hall | Cast resin, 100 kVA to 3,150 kVA |
| MV switchgear | Incoming and distribution | Metal-enclosed, to fault level |
| LV board | Feeding the process equipment | To IEC 61439 where specified |
| Monitoring | Unattended or remote substations | Sensors and SCADA gateway |
Harmonics and Power Quality
Variable speed drives, rectifiers and large DC equipment all distort the waveform. If your plant has them, the transformer and any capacitor bank need to be specified with that in mind, or you will be replacing capacitors and chasing nuisance trips. Tell us what non-linear load you have and we will size the equipment accordingly.
Documentation for Your Maintenance Team
We supply the arrangement drawings, the wiring diagrams, a termination schedule and the test reports, in the language your maintenance team works in. Spare parts lists are available for the equipment we supply.
Equipment for Industrial Distribution
- Dry-Type & Cast Resin Transformer
100 kVA 10kV SCB13 Three-Phase Cast Resin Dry-Type Transformer
Read more - Dry-Type & Cast Resin Transformer
100 kVA 11kV/220V Three-Phase Dry Distribution Transformer
Read more - Dry-Type & Cast Resin Transformer
100 kVA Amorphous Alloy Core Three-Phase Dry Transformer
Read more - Dry-Type & Cast Resin Transformer
1000 kVA 10kV SCB13 Three-Phase Cast Resin Dry-Type Transformer
Read more - Dry-Type & Cast Resin Transformer
1000 kVA 11kV SCB14 High-Efficiency Three-Phase Dry Transformer
Read more - Dry-Type & Cast Resin Transformer
1000 kVA K-13 Harmonic Mitigating Cast Resin Dry-Type Transformer
Read more - Dry-Type & Cast Resin Transformer
1000 kVA K-20 Heavy Industrial Harmonic Cast Resin Dry-Type Transformer
Read more - Dry-Type & Cast Resin Transformer
160 kVA 10kV SCB13 Three-Phase Cast Resin Dry-Type Transformer
Read more - Dry-Type & Cast Resin Transformer
1600 kVA 10kV SCB13 Three-Phase Cast Resin Dry-Type Transformer
Read more - Dry-Type & Cast Resin Transformer
1600 kVA 11kV SCB14 High-Efficiency Three-Phase Dry Transformer
Read more - Dry-Type & Cast Resin Transformer
200 kVA 10kV SCB13 Three-Phase Cast Resin Dry-Type Transformer
Read more
Frequently Asked Questions
How do you size a plant substation?
From your load list, the diversity you expect and the starting currents of the largest motors. Send the list and we will propose a rating and explain the reasoning.
Should we use oil or dry-type transformers indoors?
Cast resin dry-type is the usual choice indoors because it avoids the fire and containment provisions that oil needs. Where the substation is outdoors, oil-immersed remains the normal option.
What about harmonics from drives?
Significant non-linear load changes the transformer specification and the capacitor bank design. Tell us what drives and rectifiers you have and we will account for it.
Can the system be extended later?
Yes if it is planned now. A spare feeder and some transformer headroom are cheap at the design stage and expensive to add afterwards.
Do you provide spares information?
Yes. Spare parts lists are available for the equipment we supply, and we will tell you what we would keep on the shelf.
Talk to Our Engineering Team
Send us your single-line diagram, load list and site conditions. We will come back with a proposed arrangement, the applicable standard set, and a quotation. Email info@xsdfftransformer.com or call +8615867897761.