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:

• Eldistributionsnät i städer och på landsbygden
• Industri- och gruvföretag
• Power grid renovation and upgrading projects
• Kompakta prefabricerade transformatorstationer (paketstationer)

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🔹 Överensstämmelse med standarder

This product complies with major international and national standards:

• IEC 60076-1 - Krafttransformatorer
• GB/T 1094.1 - Krafttransformatorer
• GB/T 6451 - Tekniska krav för oljeindränkta transformatorer
• JB/T 10088 - Ljudnivåer för 6kV-500kV transformatorer
• GB 20052-2020 – Minimum Allowable Values of Energy Efficiency

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🔹 Viktiga funktioner

✔ 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
• Lämplig för bostäder och ljudkänsliga miljöer

✔ Compact & Robust Structure

• Space-saving design
• Ideal for prefabricated substations

✔ Stark kortslutningsresistans

• Advanced winding technology
• Excellent mechanical and thermal stability

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🔹 Strukturell design

🔸 Kärnan

• Kornorienterat kiselstål med hög permeabilitet
• Multi-step structure (3-joint / 5-joint / 7-joint options)
• Fogar med helgjutning för:
  • Reduced no-load loss
  • Lower noise

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🔸 Lindningar

• Emaljerad koppartråd av hög kvalitet (QQ-typ)
• Syrefria kopparledare
• Available winding structures:
  • Cylindrisk
  • Kontinuerlig
  • Helix
  • Folie för lindning

➡ Tillhandahåller:

• Hög elektrisk hållfasthet
• Strong mechanical durability
• Effektiv värmeavledning

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🔸 Oljetank

• Made of high-quality welded steel plates
• Tillgängliga strukturer:
  • Oval type
  • Rectangular type
• Metoder för kylning:
  • Kylarflänsar
  • Korrugerad tank
• Ytbehandling:
  • Syratvätt & fosfatering
  • Målning med tre skikt - en finish

➡ Funktioner:

• Excellent corrosion resistance
• Tillförlitlig tätningsprestanda
• Lång livslängd

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🔹 Tillämpningar

• Power distribution systems
• Industrial facilities and factories
• Renewable energy integration projects
• Urban infrastructure construction
• Kompakta transformatorstationer

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🔹 Fördelar Sammanfattning

• Higher efficiency than S11 transformers
• Energy-saving & environmentally friendly
• Låg ljudnivå och låg förlust
• Reliable and durable
• Lämplig för moderna smarta elnät

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❓ VANLIGA FRÅGOR

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:

• Nominell kapacitet (kVA)
• Spänningsnivåer (HV/LV)
• Vektorgrupp
• Metod för kylning
• 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.

Den är utrustad med:

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

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4️⃣ Vad är den typiska leveranstiden?

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.