S13 Oil‑Immersed Power Transformer Product Introduction
1. Product Overview
The S13 oil‑immersed power transformer is a new generation of energy‑saving distribution transformer upgraded on the basis of S11 and S9 series products, fully compliant with IEC 60076 and national GB/T 6451 industry standards. Adopting high‑permeability grain‑oriented silicon steel sheet and optimized magnetic circuit structure, this series of products effectively reduces no-load and load losses, solving the high energy consumption pain points of traditional transformers in long-term operation.
The whole machine adopts a fully sealed corrugated tank structure, with insulating mineral oil as the core medium for internal insulation and heat dissipation. It features compact structure, stable operation and strong environmental adaptability. Covering multiple capacity and voltage specifications, it can meet the power distribution needs of different scenarios, and is the mainstream preferred equipment for urban and rural power grid transformation, industrial and commercial power supply at this stage.
2. Core Product Parameters
The S13 oil‑immersed power transformer covers diversified specifications to adapt to different power distribution requirements. The core technical parameters are sorted as follows:
Parameter Item | Technical Specification |
Rated Capacity Range | 30kVA – 3150kVA |
Rated Voltage Level | Primary: 6kV / 12kV; Secondary: 0.4kV |
Voltage Regulation Mode | Non-excitation voltage regulation, ±5% or ±2×2.5% tap range |
Connection Group | Dyn11 / Yyn0 |
Cooling Method | ONAN (Oil Natural Air Natural) |
Power Frequency | 50Hz / 60Hz |
No-load Loss | 25%-30% lower than S11 series products |
No-load Current | ≤0.8% |
Short-circuit Impedance | 4.0% / 4.5% (conventional specification) |
Service Life | ≥30 years (under standard operating conditions) |
Certification | ISO9001, CE, CCC certified |
3. Product Core Features
3.1 Ultra-low Energy Consumption, Significant Cost Saving
Optimized core lamination process and magnetic circuit design greatly reduce magnetic flux leakage and iron loss. Compared with S11 series transformers, the no-load loss is reduced by 25%-30%, and the load loss is also optimized synchronously. For long-term continuous operation scenarios, it can save a large amount of power consumption annually, bringing obvious economic benefits for users.
3.2 Sealed Structure, Stable and Reliable Operation
The fully sealed corrugated tank design completely isolates the internal insulating oil from the external air, avoiding oil oxidation, moisture absorption and dust pollution. The corrugated wall can automatically compensate the volume change of insulating oil caused by temperature and load fluctuation, effectively prevent internal condensation and insulation aging, and ensure long-term stable operation of the equipment.
3.3 Low Noise and Strong Overload Capacity
The high-precision core stacking process reduces electromagnetic vibration and noise, and the oil medium plays a good damping and noise reduction role. The overall operating noise is far lower than industry standards. Meanwhile, the large heat capacity of insulating oil endows the transformer with strong short-time overload resistance and excellent anti-short-circuit performance, which can cope with sudden load surge and grid fluctuation.
3.4 Compact Layout and Wide Adaptability
The integrated structural design simplifies the internal layout, reduces the overall floor space, and is convenient for on-site installation and layout. The whole machine has good dustproof, rainproof and corrosion resistance, and can adapt to high temperature, high humidity and outdoor harsh working environments without additional protective equipment.
4. Application Scenarios
With stable performance and strong environmental adaptability, S13 oil‑immersed power transformers are widely used in various power transmission and distribution scenarios, covering civil, commercial and industrial fields:
• Urban and Rural Power Grid Renovation: It is the core supporting equipment for rural power grid upgrading and urban community power distribution transformation, effectively improving power supply stability and reducing grid operation energy consumption.
• Industrial Park Power Supply: Suitable for long-term continuous power supply of manufacturing factories, industrial zones, mining enterprises and other scenarios with stable load and high power consumption, meeting industrial production power demand.
• Commercial and Civil Facilities: Applicable to shopping malls, office buildings, schools, hospitals, residential communities and other public and civil buildings, with low noise and low loss to meet daily power distribution needs.
• New Energy Supporting Projects: Matched with photovoltaic power stations, wind power generation and other new energy power generation systems, used for power step-up and distribution of new energy grid-connected systems.
• Outdoor and Remote Scenarios: Adaptable to field construction sites, suburban power distribution stations, highway and railway supporting power supply and other outdoor harsh environments with inconvenient maintenance conditions.
5. Product Maintenance and After-sales Service
5.1 Daily Maintenance Guidelines
The fully sealed structure of the product realizes maintenance-free operation in conventional working conditions, which greatly reduces daily maintenance pressure. Users only need to carry out regular simple inspection: check the appearance for oil leakage, shell deformation and abnormal noise every quarter; observe the oil level and oil temperature to ensure the equipment operates within the rated temperature range; clean the surface dust and sundries regularly to ensure good heat dissipation. It is recommended to conduct a comprehensive performance detection of internal insulation and circuit every 3 years by professional personnel.
5.2 Fault Handling Instructions
In case of abnormal noise, sudden temperature rise, oil leakage and other minor faults during operation, users should cut off the power supply in time and stop operation. Do not disassemble the equipment privately to avoid safety accidents and equipment damage. For complex faults, please contact the after-sales team in time for professional inspection and repair.
5.3 After-sales Service Guarantee
We provide one-year free warranty service for the whole machine and lifelong paid maintenance support. During the warranty period, any quality problems caused by manufacturing process and raw materials will be repaired and replaced free of charge. We have a professional technical service team, providing 7×24-hour online consultation and rapid on-site service response. Meanwhile, we supply long-term spare parts support and regular technical guidance to ensure the long-term safe and stable operation of user equipment.
