The 10kV S13 (S20/S22)-M series oil-immersed distribution transformer is an upgraded generation of high-efficiency and low-loss transformers designed to meet modern power distribution requirements.

Compared with the S11 series, the S13 series features lower no-load loss, improved energy efficiency, and reduced operating costs, making it an ideal solution for energy-saving power systems.

The core is manufactured using high-quality cold-rolled grain-oriented silicon steel with a 45° fully mitered joint structure, ensuring excellent magnetic performance, reduced losses, and low noise operation.

This transformer is widely applied in:

• Réseaux de distribution d'électricité urbains et ruraux
• Entreprises industrielles et minières
• Power grid renovation and upgrading projects
• Postes préfabriqués compacts (postes en kit)

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🔹 Conformité aux normes

This product complies with major international and national standards:

• IEC 60076-1 - Transformateurs de puissance
• GB/T 1094.1 - Transformateurs de puissance
• GB/T 6451 - Technical Requirements for Oil-Immersed Transformers (Exigences techniques pour les transformateurs immergés dans l'huile)
• JB/T 10088 - Niveaux sonores des transformateurs 6kV-500kV
• GB 20052-2020 – Minimum Allowable Values of Energy Efficiency

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🔹 Caractéristiques principales

✔ Higher Energy Efficiency

• Lower no-load loss than S11 series
• Meets higher energy-saving requirements
• Reduces long-term operational costs

✔ Low Noise Performance

• Optimized core design minimizes vibration
• Convient aux environnements résidentiels et sensibles au bruit

✔ Compact & Robust Structure

• Space-saving design
• Ideal for prefabricated substations

✔ Forte résistance aux courts-circuits

• Advanced winding technology
• Excellent mechanical and thermal stability

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🔹 Conception structurelle

🔸 Core

• Acier au silicium à grains orientés à haute perméabilité
• Multi-step structure (3-joint / 5-joint / 7-joint options)
• Joints à onglet pour :
  • Reduced no-load loss
  • Lower noise

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🔸 Enroulements

• Fil de cuivre émaillé de haute qualité (type QQ)
• Conducteurs en cuivre sans oxygène
• Available winding structures:
  • Cylindrique
  • En continu
  • Hélicoïdale
  • Enroulement de la feuille

➡ Fournit :

• Haute résistance électrique
• Strong mechanical durability
• Dissipation efficace de la chaleur

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🔸 Réservoir d'huile

• Made of high-quality welded steel plates
• Structures disponibles :
  • Oval type
  • Rectangular type
• Méthodes de refroidissement :
  • Ailettes de radiateur
  • Réservoir ondulé
• Traitement de surface :
  • Nettoyage acide et phosphatation
  • Peinture trois couches - une finition

➡ Caractéristiques :

• Excellent corrosion resistance
• Des performances d'étanchéité fiables
• Longue durée de vie

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🔹 Applications

• Power distribution systems
• Industrial facilities and factories
• Renewable energy integration projects
• Urban infrastructure construction
• Sous-stations compactes

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🔹 Résumé des avantages

• Higher efficiency than S11 transformers
• Energy-saving & environmentally friendly
• Faible bruit et faible perte
• Reliable and durable
• Adapté aux réseaux intelligents modernes

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❓ FAQ

1️⃣ What is the difference between S11 and S13 transformers?

The S13 transformer offers lower no-load loss and higher energy efficiency compared to S11.
👉 This results in reduced electricity consumption and lower operating costs over time.

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2️⃣ Can the S13 transformer be customized?

Yes, customization is available, including:

• Capacité nominale (kVA)
• Niveaux de tension (HV/LV)
• Groupe vectoriel
• Méthode de refroidissement
• Installation type

👉 Custom designs are widely used in industrial and substation projects.

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3️⃣ Is this transformer suitable for outdoor and substation use?

Yes, it is designed for both outdoor installation and prefabricated substations.

Il présente les caractéristiques suivantes

• Strong sealing performance
• Corrosion-resistant coating
• Stable operation in harsh environments

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4️⃣ Quel est le délai de livraison habituel ?

Delivery time depends on specifications and order quantity.

• Standard models: 3–6 weeks
• Customized orders: 4–8 weeks

👉 Fast production and flexible scheduling are available for urgent projects.