China High-Efficiency Stacked Core Transformer from China Factory - Reliable Energy Solutions by Top Suppliers Manufacturers, Factories

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Introducing our China-manufactured stacked core transformer, crafted with a premium laminated structure using high-grade grain-oriented silicon steel sheets. This design significantly reduces eddy current and hysteresis losses, achieving an impressive energy efficiency of up to 98%. Our transformer features advanced heat dissipation capabilities, ensuring stable operation in a wide temperature range of -20°C to 60°C. Its compact design allows for flexible installation in various settings. With customizable options ranging from 110V to 33kV and 5kVA to 5MVA, as well as IP ratings from IP23 to IP65, it is ideal for industrial, renewable energy, and commercial applications. Manufactured in our state-of-the-art factory, this transformer meets IEC/ANSI standards, guaranteeing durability for over 25 years and operating at low noise levels of less than 55dB. As one of the leading suppliers, we are committed to providing high-quality solutions for your energy needs.

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Product Description

Product Specification
Basic Information
ItemSpecification
Product ModelS13-M-100/10 (S=Three-Phase, 13=Efficiency Class, M=Hermetically Sealed, 100=Rated Capacity kVA, 10=HV Rated Voltage kV)
Rated Capacity50kVA~2500kVA (ONAN: 100%; ODAF: 130%)
PhaseThree-Phase (Standard) / Single-Phase (Customizable)
Rated Frequency50Hz / 60Hz (±1% tolerance)
Connection GroupDyn11 (Default) / Yyn0 (Optional)
Environmental & Operating Conditions
Ambient Temperature-25°C~40°C (-40°C optional)
Altitude≤1000m (Derating applies above 1000m)
Humidity≤90% @25°C; ≤50% @40°C
Protection ClassIP20 (Indoor) / IP23 (Outdoor)
Losses & Impedance (Example: S13-100/10)
ParameterValueConditions
No-Load Loss (Po)≤170WRated voltage/frequency
Load Loss (Pk)≤1050W75°C reference temp
Short-Circuit Impedance4%~6%±10% tolerance
Core Efficiency & Compliance
Compliance: GB 20052-2024 Class 2 (S13) / Class 1 (S15) — IEC 60076-11 IE2/IE3 equivalent.
Key Advantages
Superior Energy Efficiency Laminated structure with high-grade grain-oriented silicon steel minimizes losses, achieving up to 98% efficiency.
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Strong Thermal Stability Advanced heat-dissipating design enables reliable operation in temperatures from -20°C to 60°C.
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High Customizability Flexible voltage (110V-33kV), capacity (5kVA-5MVA), and enclosure (IP23-IP65) options available.
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Durable & Low-Noise Compliant with IEC/ANSI standards, offering a 25+ year lifespan and operation at less than 55dB.
Product Display
Industry Applications
🏭 Industrial Sector

Powers heavy machinery, assembly lines, and factory distribution networks with stable load handling.

☀️ Renewable Energy

Integrates with solar PV farms and wind plants for efficient power transmission to the public grid.

🏢 Commercial Buildings

Supplies power to malls and office towers, supporting HVAC and lighting with low noise.

🔌 Power Distribution

Used in regional substations to step up/down voltages for safe long-distance transmission.

Frequently Asked Questions
Difference between S13 and S15 transformers?
S13 meets Class 2 efficiency, while S15 meets Class 1, achieving 15–20% lower losses for maximum energy savings.
Can it be customized for extreme environments?
Yes. We support high-altitude derating and anti-freeze configurations for operation down to -40°C.
What cooling methods are supported?
Standard is ONAN (100% capacity). ODAF is available for higher-demand applications up to 130% capacity.
What international standards are followed?
Compliance includes GB 20052-2024, IEC 60076-1, and IEC 60076-11 (IE2/IE3 equivalent).
Is it suitable for solar and wind energy?
Absolutely. It is specifically designed to convert variable renewable energy into stable, grid-compatible electricity.
What is the expected service life?
Designed to IEC/ANSI standards, these units have a lifespan of 25+ years with noise levels under 55dB.

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