Jiangsu Huachen Transformer Co.,Ltd.
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The S13 oil-immersed distribution transformer is an upgraded high-performance power distribution product developed on the basis of the classic S11 series distribution transformers. Through the application of new materials, innovative production processes, independent R&D and advanced technology introduction, our team has completed the optimized innovative design of the iron core and coil structure for this series. The core optimization focuses on reducing no-load loss and operating noise during long-term distribution operation, with the product’s noise level 20% lower on average than the current national standard JB/T10088-2016. With performance reaching the domestic advanced level, this transformer is tailor-made for stable, low-cost, and low-noise power distribution demands, serving distribution project contractors, industrial park operators, public facility managers, and rural power grid renovation stakeholders.
Distribution project stakeholders frequently encounter these urgent challenges in construction, renovation, and daily operation:
Low energy efficiency of aging distribution equipment: Existing S11 and older series transformers have high no-load loss, leading to rising operating costs and failure to meet current energy-saving requirements.
High maintenance cost of continuous operation: Traditional distribution transformers have poor structural stability, resulting in frequent faults, high maintenance costs, and power supply interruptions during 24/7 continuous operation.
Noise complaint risks in dense urban areas: Distribution transformers installed in residential areas, commercial centers, and public facilities often face noise complaints if they fail to meet strict environmental standards.
Limited installation space adaptation: Most urban distribution rooms have narrow space, requiring compact equipment that does not compromise performance.
Unbalanced investment and returns: Project teams need to balance procurement budget constraints with long-term energy-saving benefits, avoiding excessive one-time investment or high follow-up costs.
Iterative performance upgrade: Optimized on the classic S11 platform, it significantly reduces no-load loss, perfectly adapting to the energy efficiency upgrade needs of old distribution systems without large-scale structural modification.
Enhanced structural reliability: Reinforced coil and iron core design improves short-circuit resistance and overload capacity, reducing unplanned maintenance and power outages during long-term continuous operation.
Optimized noise control: 20% average noise reduction compared to the JB/T10088-2016 standard, effectively eliminating noise complaint risks in densely populated and noise-sensitive areas.
Compact structural design: The optimized layout achieves a more compact body size, adapting to the narrow installation space of urban distribution rooms and temporary construction sites.
High cost-performance ratio: Balances initial procurement cost and long-term energy-saving benefits, providing an economical and reliable solution for large-scale distribution grid renovation and new construction projects.
Model | Rated Capacity (kVA) | Vector Group | High Voltage (kV) | Tapping Range | Low Voltage (kV) | No-Load Loss (W) | Dy Load Loss (W) | Yy Load Loss (W) | No-Load Current (%) | Short-Circuit Impedance (%) |
|---|---|---|---|---|---|---|---|---|---|---|
S13-M-30 | 30 | Yyn0 or Dyn11 | 10/6.3/6 | ±5% / ±2×2.5% | 0.4 | 80 | 630 | 600 | 1.5 | 4 |
S13-M-50 | 50 | Yyn0 or Dyn11 | 10/6.3/6 | ±5% / ±2×2.5% | 0.4 | 100 | 910 | 870 | 1.3 | 4 |
S13-M-63 | 63 | Yyn0 or Dyn11 | 10/6.3/6 | ±5% / ±2×2.5% | 0.4 | 110 | 1090 | 1040 | 1.2 | 4 |
S13-M-80 | 80 | Yyn0 or Dyn11 | 10/6.3/6 | ±5% / ±2×2.5% | 0.4 | 130 | 1310 | 1250 | 1.2 | 4 |
S13-M-100 | 100 | Yyn0 or Dyn11 | 10/6.3/6 | ±5% / ±2×2.5% | 0.4 | 150 | 1580 | 1500 | 1.1 | 4 |
S13-M-125 | 125 | Yyn0 or Dyn11 | 10/6.3/6 | ±5% / ±2×2.5% | 0.4 | 170 | 1890 | 1800 | 1.1 | 4 |
S13-M-160 | 160 | Yyn0 or Dyn11 | 10/6.3/6 | ±5% / ±2×2.5% | 0.4 | 200 | 2310 | 2200 | 1.0 | 4 |
S13-M-200 | 200 | Yyn0 or Dyn11 | 10/6.3/6 | ±5% / ±2×2.5% | 0.4 | 240 | 2730 | 2600 | 1.0 | 4 |
S13-M-250 | 250 | Yyn0 or Dyn11 | 10/6.3/6 | ±5% / ±2×2.5% | 0.4 | 290 | 3200 | 3050 | 0.9 | 4 |
S13-M-315 | 315 | Yyn0 or Dyn11 | 10/6.3/6 | ±5% / ±2×2.5% | 0.4 | 340 | 3830 | 3650 | 0.9 | 4 |
S13-M-400 | 400 | Yyn0 or Dyn11 | 10/6.3/6 | ±5% / ±2×2.5% | 0.4 | 410 | 4520 | 4300 | 0.8 | 4 |
S13-M-500 | 500 | Yyn0 or Dyn11 | 10/6.3/6 | ±5% / ±2×2.5% | 0.4 | 480 | 5410 | 5150 | 0.8 | 4 |
S13-M-630 | 630 | Yyn0 or Dyn11 | 10/6.3/6 | ±5% / ±2×2.5% | 0.4 | 570 | \multicolumn{2}{c}{6200} | 0.6 | 4.5 | |
S13-M-800 | 800 | Yyn0 or Dyn11 | 10/6.3/6 | ±5% / ±2×2.5% | 0.4 | 700 | \multicolumn{2}{c}{7500} | 0.6 | 4.5 | |
S13-M-1000 | 1000 | Yyn0 or Dyn11 | 10/6.3/6 | ±5% / ±2×2.5% | 0.4 | 830 | \multicolumn{2}{c}{10300} | 0.6 | 4.5 | |
S13-M-1250 | 1250 | Yyn0 or Dyn11 | 10/6.3/6 | ±5% / ±2×2.5% | 0.4 | 970 | \multicolumn{2}{c}{12000} | 0.5 | 4.5 | |
S13-M-1600 | 1600 | Yyn0 or Dyn11 | 10/6.3/6 | ±5% / ±2×2.5% | 0.4 | 1170 | \multicolumn{2}{c}{14500} | 0.5 | 4.5 | |
S13-M-2000 | 2000 | Yyn0 or Dyn11 | 10/6.3/6 | ±5% / ±2×2.5% | 0.4 | 1550 | \multicolumn{2}{c}{18300} | 0.4 | 5 | |
S13-M-2500 | 2500 | Yyn0 or Dyn11 | 10/6.3/6 | ±5% / ±2×2.5% | 0.4 | 1830 | \multicolumn{2}{c}{21200} | 0.4 | 5 |
Built on the widely verified S11 series platform, it retains the mature and reliable characteristics of the classic model while achieving comprehensive performance improvement in loss and noise control.
The optimized iron core structure greatly reduces no-load loss in long-term light-load operation, highly suitable for the variable load characteristics of distribution networks, delivering sustained energy-saving effects.
The compact body design adapts to limited installation space, while the reinforced structure ensures stable operation in harsh environments such as high humidity, dust, and temperature fluctuations.
Supports full customization of capacity, voltage grade, and protection level, matching the diverse needs of different distribution projects from rural grid renovation to urban commercial building power supply.
The S13 low-loss oil-immersed distribution transformer is widely used in various secondary power distribution scenarios:
Urban and rural secondary distribution network construction and renovation
Industrial park internal power distribution systems
Commercial buildings, office buildings, and shopping mall power distribution
Public service facilities such as schools, hospitals, and government buildings
Rural power grid renovation and upgrading projects
Temporary power distribution for construction sites and outdoor events
Small and medium-sized manufacturing plant power supply systems
Our S13 distribution transformer is manufactured under a full-process closed-loop quality management system, strictly complying with the JB/T10088-2016 national standard and relevant distribution transformer technical specifications. Each unit undergoes strict incoming material inspection, production process control, and full-item factory testing, including no-load and load performance, insulation strength, noise level, and short-circuit resistance verification. With performance reaching the domestic advanced level, the product has been widely verified in numerous distribution grid projects across the country.
No matter you are carrying out a large-scale distribution grid renovation project, building a new industrial park power distribution system, or need a customized distribution transformer for a special scenario, our professional technical team can provide a one-stop tailored solution for your project. Contact us today via hotline at +86-15852118166 or email at marketing_huachenjs@hcbyq.com、sales@hcbyq.com to get a quick quote and full technical support for your S13 oil-immersed distribution transformer needs.
