S Series 10kV Power Transformer
The S series 10kV oil-immersed power transformer adopts a corrugated tank and heat-resistant insulation system, featuring low no-load and load losses and low operating noise, ideal for distribution systems with long-term high load rates.
Product Introduction
Key Specifications
Voltage class
20kV on the high-voltage side, 0.4kV on the low-voltage side
Capacity Range
30kVA~3150kVA
Cooling Method
Oil-Immersed Self-Cooled (ONAN)
Vector group
Dyn11 or Yyn0
Applications
Urban public distribution transformers
Residential and commercial power distribution, with focus on low noise and energy savings
Industrial dedicated transformers
Dedicated factory power distribution; emphasis on short-circuit resistance and stability
Industrial park power distribution
Centralized power supply for industrial parks, logistics parks, etc., focusing on load fluctuation adaptability and O&M efficiency
Product Overview
- Strong environmental adaptability: withstands high temperature, high humidity, and heavy loads, ensuring long-term stable operation at peak load.
- Fine craftsmanship: refined design and polishing deliver a lasting bright appearance with excellent corrosion resistance.
- Excellent sealing: fully sealed structure with acrylate seals and multiple positive/negative pressure leak tests for reliable operation.
- Safe and eco-friendly: environmentally friendly materials, non-toxic operation, and low-smoke, non-corrosive combustion, friendly to the environment.
Product Features
Low Loss, High Efficiency and Energy Saving
New core design and optimized winding technology reduce no-load loss by over 20% and load loss by over 10%, greatly improving efficiency.
Quiet Design, Lower Noise
Premium silicon steel laminations and optimized magnetic circuit design significantly reduce noise, ideal for urban and residential areas.
High Reliability
Optimized structure with strong short-circuit resistance; high-quality insulation materials and specialty oil ensure safe, stable operation.
Eco-friendly and maintenance-free
Environmentally friendly materials and pollution-free insulating oil deliver excellent sealing with no leakage, minimal maintenance, and recyclable materials.
Sealed and Leak-Proof with Strong Weather Resistance
Optimized tank sealing structure prevents leakage, moisture, and rust, ideal for long-term outdoor operation
Lower Temperature Rise, Longer Service Life
Optimized heat dissipation and oil-path design deliver more stable hotspot temperatures and delay insulation aging
Standards and certifications
GB 1094
Power transformer
GB 1094.1~2-2013
Basic technical requirements and test methods for power transformers
GB/T 6451-2015
Technical Parameters and Requirements for Oil-Immersed Power Transformers
JB/T 10088-2004
Technical specifications for three-phase oil-immersed transformers
Technical Advantages
R&D cloud platform
Integrates electromagnetic optimization design, parametric drawing, performance analysis, structural optimization, and automatic drawing output for transformers, enabling shared transformer design resources and search, modification, and version control of all kinds of data.
Simulation Analysis
Flow field, temperature field, electric field, leakage magnetic field, wave process, and short-circuit force. The R&D and design of every product series are verified through flow field and temperature field simulation analysis to determine the winding average temperature rise and hot-spot temperature, ensuring product performance.
Smart O&M platform
By collecting key data such as transformer temperature, current, voltage, vibration, and grid harmonics, it enables online power quality analysis and fault alarms, and can be installed on mobile phones.







