Oil-immersed transformers
S11, S13, S20, S22 and SZ series. Distribution and power transformers for 10 kV and 35 kV systems.
Choose a series
- S11 specifications
- S13 specifications
- S20 specifications
- S22 specifications
- SZ11 specifications
- SZ13 specifications
- SZ20 specifications
- SZ22 specifications
Need help choosing? Send the required capacity, voltage and operating conditions.
Discuss your requirementsSpecifications
Each transformer series page lists capacity, losses, current, impedance, voltage combinations, tapping and connection groups from the factory document. Missing source values are explicitly marked.
Custom configuration enquiries
The factory selection workbook lists the following enquiry ranges separately from the model loss tables. These are not interchangeable ratings: request confirmation of the exact model, winding material and voltage combination before specification.
| Input voltage (kV) | Output voltage (kV) | Capacity (kVA) | Winding options |
|---|---|---|---|
| 6–11 | 0.4–1.14 | 30–6300 | Copper / aluminium / copper-aluminium |
| 20–24 | 0.4–1.14 | Up to 6300; minimum not stated | Copper / aluminium / copper-aluminium |
| 35–38.5 | 0.4–1.14 | Up to 6300; minimum not stated | Copper / aluminium / copper-aluminium |
| 35–38.5 | 6–11 | Up to 20000; minimum not stated | Copper / aluminium / copper-aluminium |
Source: factory product classification workbook, oil-immersed worksheet. Other reference ranges in that workbook differ; final capacity and loss values require an approved project datasheet.
Applications
Industrial, agricultural, transport and community distribution networks. Select the voltage combination and capacity from the series tables, then confirm site conditions.
Downloads
Request a product catalog or a series parameter sheet. This link opens a draft in your email app for you to review and send.
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