SZ 10-35 kV On-Load Tap-Changing Power Transformer
On-Load Tap-Changing Transformers · Drawing-confirmed project supply
KOVYEL SZ series oil-immersed power transformers provide on-load voltage regulation for 10 to 35 kV systems, with ratings from 200 kVA to 16 MVA.
Selection begins with the actual project interface.
KOVYEL SZ series oil-immersed power transformers provide on-load voltage regulation for 10 to 35 kV systems, with ratings from 200 kVA to 16 MVA.
KOVYEL confirms final selection against the approved drawing, interface dimensions, service conditions and purchase specification before quotation and supply. Catalogue references define the product family; the approved project documents remain the controlling basis.
Review the available construction and product views.
Images show representative configurations. Final construction, marking and packing are confirmed against the approved project documents.
The information buyers need before model confirmation.
Verified catalogue data is shown below. Dimensions, ratings and interfaces that depend on the project remain subject to the approved drawing and purchase specification.
| Product | SZ 10-35 kV On-Load Tap-Changing Power Transformer |
|---|---|
| Category | On-Load Tap-Changing Transformers |
| Representative range / models | SZ-200/10 to SZ-16000/35 |
| Typical applications | Utility and industrial substations; Power generation and distribution projects; New-build and replacement transformer projects |
| Rated capacity | 200-16,000 kVA |
| Primary voltage | 6-11 kV or 35/38.5 kV |
| Secondary voltage | 0.4-10.5 kV depending on model |
| Tap range | Typical ±4 × 2.5% or ±3 × 2.5% |
| Connection groups | Yyn0, Yd11 or YNd11 |
| Short-circuit impedance | 4-8% depending on rating |
| Cooling | Oil-immersed; sealed or storage-tank configuration |
| Final dimensions and ratings | Confirmed against the approved drawing, equipment interface and project specification |
| Supply basis | Project-specific RFQ, coordinated documentation and export packing |
Unverified dimensions or performance ratings are not published as fixed values. Submit the controlling drawing or requirement schedule for final confirmation.
Where this product family is typically used.
Utility and industrial substations
On-load voltage regulation
Power generation and distribution projects
Stepped all-mitered core
New-build and replacement transformer projects
Sealed and conservator-tank options
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A complete RFQ helps KOVYEL confirm the product configuration, production basis, documentation, export packing and delivery proposal without repeated clarification.
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Send the technical documents with the form below. KOVYEL will review the product interface, required standard, quantity and destination before preparing the quotation.
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