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:

• Reti di distribuzione elettrica urbane e rurali
• Imprese industriali e minerarie
• Power grid renovation and upgrading projects
• Sottostazioni compatte prefabbricate (sottostazioni package)

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🔹 Conformità agli standard

This product complies with major international and national standards:

• IEC 60076-1 - Trasformatori di potenza
• GB/T 1094.1 - Trasformatori di potenza
• GB/T 6451 - Requisiti tecnici per trasformatori immersi in olio
• JB/T 10088 - Livelli sonori dei trasformatori da 6kV-500kV
• GB 20052-2020 – Minimum Allowable Values of Energy Efficiency

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🔹 Caratteristiche principali

Maggiore efficienza energetica

• 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
• Adatto per ambienti residenziali e sensibili al rumore

✔ Compact & Robust Structure

• Space-saving design
• Ideal for prefabricated substations

Forte resistenza ai cortocircuiti

• Advanced winding technology
• Excellent mechanical and thermal stability

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🔹 Progettazione strutturale

🔸 Nucleo

• High-permeability grain-oriented silicon steel
• Multi-step structure (3-joint / 5-joint / 7-joint options)
• Giunti completamente sagomati per:
  • Reduced no-load loss
  • Lower noise

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🔸 Avvolgimenti

• Filo di rame smaltato di alta qualità (tipo QQ)
• Conduttori in rame senza ossigeno
• Available winding structures:
  • Cilindrico
  • Continuo
  • Elicoidale
  • Avvolgimento della pellicola

➡ Fornisce:

• Elevata resistenza elettrica
• Strong mechanical durability
• Dissipazione efficiente del calore

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🔸 Serbatoio dell'olio

• Made of high-quality welded steel plates
• Strutture disponibili:
  • Oval type
  • Rectangular type
• Metodi di raffreddamento:
  • Alette del radiatore
  • Serbatoio ondulato
• Trattamento della superficie:
  • Pulizia e fosfatazione acida
  • Pittura a tre mani e una finitura

➡ Caratteristiche:

• Eccellente resistenza alla corrosione
• Prestazioni di tenuta affidabili
• Lunga durata di vita

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🔹 Applicazioni

• Power distribution systems
• Industrial facilities and factories
• Renewable energy integration projects
• Urban infrastructure construction
• Compact substations

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🔹 Riepilogo dei vantaggi

• Higher efficiency than S11 transformers
• Energy-saving & environmentally friendly
• Basso rumore e bassa perdita
• Reliable and durable
• Adatto alle moderne reti intelligenti

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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:

• Capacità nominale (kVA)
• Livelli di tensione (HV/LV)
• Gruppo vettoriale
• Metodo di raffreddamento
• 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.

Dispone di:

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

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4️⃣ What is the typical delivery time?

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.