S11 Oil-Immersed Silicon Steel Laminated Core Transformer
S11 series three-phase oil-immersed silicon steel laminated core distribution transformer. Corrugated rectangular oil tank, sealed conservator-free design, rated 30kVA–2500kVA, up to 36kV primary voltage. IEC 60076 compliant.
Product Specifications
Product Description
S11 Oil-Immersed Silicon Steel Laminated Core Transformer
The S11 series three-phase oil-immersed distribution transformer features a precision-engineered silicon steel laminated core and corrugated rectangular oil tank. The fully sealed, conservator-free design isolates transformer oil from air, preventing oxygen and moisture ingress for extended service life with minimal maintenance.
Key Features
- Corrugated Rectangular Oil Tank — Flexible corrugated panels compensate for oil volume changes without a conservator; fully sealed against moisture and oxygen
- Precision Welding Technology — Full, smooth, and uniform welds for superior sealing and long-term reliability
- Low-Height Core Design — Overall height lower than conventional transformers of equivalent capacity, saving installation space
- Oil & Moisture Isolation — No-conservator sealed construction extends service life and reduces inspection frequency
- Durable & Reliable — Robust tank structure with excellent mechanical strength for demanding environments
- Customizable — Available in a wide capacity and voltage range; connection group, accessories, and cooling options configurable
Technical Specifications
| Type | Three-Phase Oil-Immersed, Laminated Core |
|---|---|
| Core Material | Silicon Steel |
| Tank Design | Corrugated Rectangular Oil Tank (Conservator-Free) |
| Rated Capacity | 30 kVA – 2500 kVA |
| Primary Voltage | Up to 36 kV |
| Secondary Voltage | 0.4 kV |
| Frequency | 50 Hz / 60 Hz |
| Connection Group | Dyn11 / Yyn0 / Others |
| Cooling Type | ONAN (Oil Natural Air Natural) |
| Standard | IEC 60076 |
| Customization | Voltage, Capacity, Accessories, and More |
Need a reliable distribution transformer for your project? Contact Apex Power Systems for specifications and quotation.
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Contact Us
Apex Power Systems (Nanjing) Co., Ltd.
Contact us for product details, quotation, and project support.
- +8613201571341
- WhatsApp: +8613201571341
- xuke@link-jl.com
- Room 1001, Xinke Building, No. 209 Pubin Road, Jiangbei New Area, Nanjing City, Jiangsu Province, China




