TRANSFORMER SERIES
Oil-immersed distribution series
S, SZ and S(B)H transformer families in the supplied Ryan presentation.
Published range
| Parameter | Presentation statement |
|---|---|
| Distribution series | S, SZ, S(B)H |
| Distribution voltage classes | 10, 20 and 35 kV |
| Constructions shown | Conventional and amorphous-alloy examples |
| Per-model capacity | Not stated in the product range slides |
| Source pages | 14, 17–18 |
SOURCE · Jiangsu Ryan Electric introduction, 17 March 2026 · Slide 14, 17–18. Presentation data, subject to confirmation for the proposed configuration.
Manufacturing sequence in source
Core processing and stacking; high- and low-voltage winding; winding drying; preliminary assembly; vapour-phase drying; final assembly; vacuum oil filling.
This is the supplier’s process description from slide 18, not a statement about Vastray-owned manufacturing facilities.
Complete the model specification
The deck does not provide a model-by-model table for rated capacity, secondary voltage, frequency, vector group, impedance, tap range, losses, dimensions or mass. These remain enquiry items rather than assumed specifications.
These are the supplier presentation’s voltage classes and range limits. They have not been converted into 11 / 22 / 33 kV Australian product ratings. An exact model, secondary voltage, losses, impedance, test evidence and project requirements must be confirmed before an offer.
Transformer specification guide