S Series 35kV Power Transformer
The S series 35kV power transformer is a power device designed for high efficiency, low noise, and high reliability, widely used in urban and rural distribution networks, industrial parks, and various high-load operation scenarios. Based on advanced technology and quality materials, this series of transformers offers excellent electrical performance and operational stability.
Product Introduction
Key Specifications
Voltage class
35kV 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 and rural power distribution
Main equipment for regional substations, emphasizing low losses and low noise.
Industrial parks
Main power supply for load centers, with focus on short-circuit withstand and reliability
Energy centers
Park-level integrated energy stations, focusing on efficiency and easy O&M
Product Overview
- Strong overload capability: high thermal margin for stable long-term operation in high-temperature and high-load-rate scenarios
- Durable appearance: polished and derusted, then electrostatic powder coated; wide-fin radiators with a weatherable, fade-resistant coating
- Reliable sealing: one-piece molded acrylate gaskets, with dual positive- and negative-pressure leak testing before shipment, reducing leakage risk
- Safe and eco-friendly: materials and processes meet safety and environmental requirements, with low smoke and low corrosion for a greener footprint
Product Features
Low-loss design
The S series features a new core and optimized winding structure design, reducing no-load losses by more than 20% and load losses by more than 10% compared with conventional transformers, greatly improving energy efficiency.
Low-noise operation
Premium silicon steel and optimized magnetic circuit design significantly reduce noise levels, meeting the environmental requirements of modern cities and residential areas.
High Reliability
The windings and active part are rigorously designed with strong short-circuit resistance. Premium insulation materials and high-temperature transformer oil ensure safe operation and extended service life.
Eco-friendly and energy-saving
Uses pollution-free, recyclable eco-friendly insulating oil. Product materials are recyclable, with excellent sealing performance—leak-free and maintenance-free.
Sealed and leak-proof
Optimized tank sealing structure offers stronger leak prevention, adapting to long-term outdoor operation
Strong Short-Circuit Withstand Capability
Reinforced windings and process optimization withstand short-circuit impacts for more stable operation
Standards and certifications
GB 1094
Power transformer
GB/T 6451
Technical Parameters and Requirements for Oil-Immersed Power Transformers
GB/T 10228
Technical parameters and requirements for power transformers
IEC 60076
Power transformer
IEC 60354
Transformer Loading Guide
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.
