Ultra-low energy loss
Enhanced core construction reduces both no-load and load losses to support lower operating cost.
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OIL-IMMERSED TRANSFORMER
S20 10kV Oil-Immersed Transformer
Next-generation energy-saving distribution equipment for industrial, commercial, utility and infrastructure projects.
30–2500 kVA10 / 0.4 kVDyn11Sealed oil tank
PRODUCT OVERVIEW
Low-loss, low-noise distribution for long-run operation
The S20 combines high-quality silicon-steel cores, optimized winding design and fully oil-immersed cooling. A fully sealed tank limits moisture and oxidation, helping maintain stable operation under heavy-load conditions.
The supplied record positions the series for power-grid systems, industrial sites, commercial premises and infrastructure projects where thermal performance, overload strength and reduced maintenance matter.
CORE FEATURES
Designed around stable distribution
Superior thermal performance
Oil-immersed cooling limits temperature rise during heavy-duty and continuous operation.
Sealed service life
High-tightness construction slows moisture ingress, insulation ageing and oxidation.
Low-noise operation
Core-stacking and anti-vibration design suit urban and noise-sensitive sites.
Mechanical strength
Robust winding construction supports short-circuit withstand capability.
Minimal maintenance
Hermetically sealed oil limits contamination and extends maintenance intervals.
TECHNICAL PARAMETERS
S20 principal configuration inputs
The full supplied table lists each rating; final values are issued with the approved technical offer.
| Parameter | Supplied range / option |
|---|---|
| Rated capacity | 30–2500 kVA |
| HV / LV voltage | 10 kV / 0.4 kV |
| Vector group | Dyn11 |
| Tap range | ±2 × 2.5% |
| Cooling | Oil-immersed |
| No-load loss | 70 W at 30 kVA, rising by rating in the supplied table |
| Load loss | 505 W at 30 kVA, rising by rating in the supplied table |
| Short-circuit impedance | 4% for lower capacities; 4.5–5% for selected larger capacities |
APPLICATIONS
Where the S20 fits
Choose the S20 route for dependable medium-to-low-voltage conversion and lower total cost of ownership.
Industrial sitesStable distribution under sustained load cycles.
Commercial premisesLow-noise operation for urban and business environments.
Utility systemsCompact distribution equipment for grid networks.
Infrastructure projectsSealed, low-maintenance equipment for long-run operation.
FAQ
Questions buyers usually confirm first
What makes the S20 different from a standard distribution unit?
The supplied record emphasizes lower no-load and load loss, low noise, sealed construction and stronger thermal performance.
Can the rating be selected across the full 30–2500 kVA range?
Yes. The supplied S20 table lists ratings from 30 kVA through 2500 kVA; the final model follows the load duty and project standard.
What accessories and tests are available?
Technical drawings, routine and type-test records, nameplate, tap changer and agreed monitoring or protection accessories can be included in the approved scope.
What support is provided after delivery?
Installation guidance, commissioning support and technical consultation can be arranged for the confirmed project.
PRODUCT ENQUIRY
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S20 10KV TRANSFORMER
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