Amorphous Core Distribution Transformers

Henan GNEE Electric Co., Ltd. is one of the most reliable manufacturers and suppliers of amorphous core distribution transformers in China. If you're going to buy customized amorphous core distribution transformers made in China, welcome to get quotation from our factory. Quality products and reasonable price are available.

An amorphous core distribution transformer is a low-loss, high-efficiency distribution transformer whose magnetic core is manufactured from ferromagnetic amorphous metal formed into ultra-thin foils. Because the amorphous alloy has much higher electrical resistance and far thinner laminations than conventional grain-oriented silicon steel, eddy-current and hysteresis losses are drastically reduced: the no-load loss (iron loss) of an amorphous core distribution transformer is typically 70–80% lower than that of traditional silicon-steel transformers.

GNEE Electric supplies the SH15 series amorphous metal core distribution transformer from 30 kVA to 800 kVA in the 11 kV class, with lower operating temperature rise, stable long-term performance and excellent resistance to harmonic distortion. Request a factory-direct quotation and receive full technical documentation within 24 hours.

Amorphous alloy transformers use an iron-based metallic-glass ribbon as the iron core instead of stacked silicon-steel laminations. Key characteristics:

• Ultra-thin, high-resistance core material – limits eddy currents, the dominant cause of iron loss.
• 70–80% lower no-load loss than traditional silicon-steel transformers, making it an ideal low-loss, energy-saving transformer.
• Lower heat generation – reduced core losses mean lower temperature rise, quieter and more stable running performance.
• Better harmonic tolerance – the amorphous core maintains low core loss even when conducting magnetic flux at relatively high frequencies, so the transformer performs well in installations where harmonic distortion is present.

Note: Above data are for reference only – the test certificate issued with each unit is the governing document. Higher ratings, other vector groups and 20 kV / 35 kV classes are available on request.

• Ultra-low core loss – saves electricity and improves overall power efficiency, directly reducing lifetime energy cost.
• Environmentally friendly – lower core losses reduce power consumption and associated carbon dioxide and sulfur dioxide emissions; the transformer is maintenance-free.
• Low operating temperature, extended insulation life – reduced heat generation slows insulation aging.
• Durable and mechanically strong – the amorphous metal core provides excellent overload capacity and robust construction.
• Harmonic-resistant – low core loss is maintained even at relatively high magnetic flux frequencies, making it suitable for applications where harmonic distortion may be present.

Tip: Amorphous core distribution transformers give the fastest payback in long-duration light-load applications – rural and urban distribution, public infrastructure, and renewable-energy auxiliary supplies – where no-load loss dominates total energy cost.

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Send us your rated capacity, primary/secondary voltage, vector group and destination country. Our engineers will reply within 24 hours with a factory-direct quotation, loss data and delivery schedule.

📧 Email: sales@gneeelectric.com ｜ 💬 WhatsApp: +86 158 2468 7445

Q1: What is an amorphous core distribution transformer?

It is a distribution transformer whose core is made of amorphous metal (metallic-glass) ribbon instead of silicon-steel laminations. The ultra-thin, high-resistance core material cuts no-load (iron) loss by 70–80% compared with conventional designs.

Q2: How much energy can it save?

Because no-load loss is reduced by 70–80% and the transformer is often energized around the clock, annual electricity savings of 20–30% are typical in distribution duty. Exact savings depend on load profile and tariffs.

Q3: Is an amorphous core transformer more expensive?

The first cost of the amorphous core is higher, but lower no-load loss typically recovers the premium within 2–5 years in continuous-duty applications; the transformer then continues to save energy for its full service life.

Q4: Can it handle harmonic loads?

Yes. The amorphous core maintains low core loss at higher flux frequencies, making it suitable for installations with harmonic distortion such as VFD and rectifier loads.

Q5: What ratings and voltage classes are available?

The SH15 series covers 30–800 kVA in the 11 kV class as standard (HV 6.3 / 10 / 10.5 / 11 kV, LV 0.415 kV, Dyn11). Higher ratings and other voltage classes are available on request.

Q6: How is it different from a dry-type amorphous transformer?

Both use amorphous cores. Oil-immersed amorphous distribution transformers (such as the SH15 series) are outdoor-rated, low-cost units for conventional distribution; dry-type amorphous transformers add oil-free resin insulation for indoor and fire-sensitive installations.

Q7: What testing is performed before delivery?

Each unit is factory-tested per IEC 60076 / GB/T 25446, including turns ratio, no-load loss, load loss, insulation resistance and withstand voltage, with complete test reports delivered with the equipment.

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