Property Details
S13 Oil-immersed Fully Sealed Distribution Transformer
S13 Oil-immersed Fully Sealed Distribution Transformer
S13 Oil-immersed Fully Sealed Distribution Transformer is an energy-efficient three-phase oil-immersed distribution transformer developed on the basis of the S11 series. It adopts optimized core and winding structures together with improved materials and manufacturing processes to reduce no-load losses and operating noise. The fully sealed design helps protect the insulating oil from direct contact with the external environment, supporting stable and reliable operation during long-term service.
The S13 series is designed for efficient and dependable power distribution in a wide range of applications. It is available in rated capacities from 30 kVA to 2500 kVA, with commonly used high-voltage configurations including 6 kV, 6.3 kV, 10 kV, 10.5 kV and 11 kV, and a low-voltage rating of 0.4 kV. Depending on project requirements, the transformer can be configured with Dyn11 or Yyn0 connection groups and suitable non-excitation voltage regulation.
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Description
The S13 Oil-immersed Fully Sealed Distribution Transformer is designed to provide reliable and energy-efficient power distribution for utility networks, industrial facilities, commercial buildings and other electrical distribution applications. Developed from the S11 series, the S13 transformer incorporates optimized core and winding structures, improved manufacturing processes and updated materials to achieve lower no-load losses and reduced operating noise.
The fully sealed construction helps isolate the transformer oil from direct exposure to the surrounding atmosphere, reducing the influence of moisture, dust and other environmental factors on the insulating system. This design also contributes to stable insulation performance and reliable long-term operation.
The S13 series covers a wide capacity range from 30 kVA to 2500 kVA. According to the catalog, the standard technical configurations include 6 kV, 6.3 kV, 10 kV, 10.5 kV and 11 kV high-voltage ratings, with 0.4 kV low-voltage output. The transformer can be configured with Dyn11 or Yyn0 connection symbols and different high-voltage tapping arrangements according to project requirements.
For overseas power distribution projects, the S13 series can be configured according to the customer’s required capacity, voltage level, connection group and operating conditions. The technical parameters can be confirmed during the project design stage to ensure the transformer is properly matched to the electrical system.
Technical Parameters & Features
Transformer Type
S13 Oil-immersed Fully Sealed Distribution Transformer
Phases
Three-phase
Frequency
50 Hz
Rated High Voltage
6 / 6.3 / 10 / 10.5 / 11 kV
Rated Low Voltage
0.4 kV
Rated Capacity
30–2500 kVA
High-voltage Tapping Range
±5% or ±2×2.5%
Short-circuit Impedance
4%–4.5%
Our Transformer Services
From transformer design and manufacturing to testing and delivery, we provide reliable solutions tailored to your project requirements.
Transformer Design
Professional transformer design based on your voltage, capacity, application and installation requirements. We provide customized technical solutions for different power and distribution projects.
Manufacturing & Testing
Advanced manufacturing processes and strict quality control throughout production. Each transformer is tested and inspected before shipment to ensure reliable performance and safe operation.
Global Delivery
We support international transformer projects with professional export services, secure packaging and coordinated logistics, helping customers receive their equipment safely and efficiently.
GOT A QUESTION?
Frequently Asked Questions
We manufacture a wide range of power and distribution transformers, including oil-immersed transformers, dry-type transformers, distribution transformers and other customized transformer solutions. Our products can be designed according to the required voltage, capacity, frequency, installation environment and application.
Yes. We can provide customized transformer solutions based on your project requirements. Key parameters such as rated capacity, primary and secondary voltage, frequency, vector group, winding material, cooling method and accessories can be configured according to the application and technical specifications.
Our transformers can be manufactured according to applicable international standards and project requirements, including IEC, ANSI/IEEE, BS and other relevant standards. The specific standard and technical requirements can be confirmed before production.
To prepare an accurate quotation, we normally need the transformer type, rated capacity, primary and secondary voltage, frequency, phase, installation location, applicable standard and any special technical requirements. If you have a technical specification or project document, you can send it to us for evaluation.
The production lead time depends on the transformer type, rated capacity, voltage level, customization requirements and order quantity. After confirming the technical specifications, we will provide a clear production schedule and estimated delivery time.
Yes. We support international export and can assist with transportation arrangements and export documentation. Based on the destination and project requirements, we can discuss suitable shipping methods and delivery terms with the customer.
You can contact our sales team through the inquiry form, email or WhatsApp. Please provide your transformer specifications or project requirements, and our engineers and sales team will review the information and provide a suitable transformer solution and quotation.
