The AMC Hybrid Transformer
Significant Cost Savings
- Reduces investment costs by up to 39% and harmonic losses by 73% compared to competitors.
- Eliminates the need for separate harmonic filters, reducing both initial investment and ongoing maintenance costs.
- Recognized by MOTIE's R&D Rediscovery Project for a 30% reduction in investment costs and over 95% efficiency compared to competitors for harmonic filters.
- Payback period can be calculated based on annual savings and investment cost increase, varying by transformer capacity/spec.
Industry-Leading Power Efficiency
- Reduces total transformer loss by up to 7.6% (from 6,761W to 6,249W).
- Reduces stray-load loss by 36.2% and winding temperature by 8–13%.
- Improves power quality: 36–70% harmonic reduction (THD), 96%+ unbalance compensation, 99%+ reactive power compensation.
- Reduces annual CO2 emissions by 2,243 kg (based on national standards).
Hybrid vs. Conventional Transformers
- All-in-one solution: Combines transformer, harmonic attenuation, and unbalance improvement (no separate filter needed).
- Patented Zig-Zag Winding: Enables 30° phase control for harmonic attenuation, unlike conventional 120° winding.
- Certified Results: KERI test: THD reduced from 76.8% (existing) to 49.3% (hybrid); up to 95%+ harmonic reduction in some cases.
- Longer lifespan: Lower winding temperature and losses extend facility life and reduce maintenance.

Unmatched Performance, Extended Lifespan, and Significant Carbon Reduction
The Hybrid Transformer is an all-in-one solution combining transformer functionality, harmonic attenuation, and unbalanced improvement. It offers substantial advantages over traditional models, delivering superior performance, reduced operational costs, and a significant contribution to environmental sustainability. These benefits are backed by certified test reports (KERI).
Key Features & Benefits:
- 35.8% Reduction in Harmonics (THD)
- 13.3% Reduction in Winding Temperature
- 7.6% Reduction in Total Power Loss
- 2,243 kg Reduction in Annual CO2 Emissions
- 15-20% Reduction in Life Cycle Cost (LCC)
- Enhanced Seismic Resistance
How It Works: The Technology Inside
While a standard transformer's primary job is to step voltage up or down, modern electrical systems are filled with non-linear loads (like computers, LEDs, and variable speed drives) that create harmful electrical "noise" known as harmonics. These harmonics cause overheating, reduce equipment lifespan, and waste energy.
The AMC Hybrid Transformer is engineered to solve this problem. It integrates specialized Zig-zag Winding technology directly into its core design. This innovative winding configuration naturally cancels out the most disruptive harmonic currents, ensuring cleaner, more efficient power without the need for extra filters. This fundamental design improvement is the key to its superior performance and reliability.

Advanced windings actively cancel harmonic distortion at the source.
Improved Power Quality & 35.8% Harmonics (THD) Reduction
Hybrid transformers achieve a remarkable 35.8% reduction in Harmonics (THD), lowering it from an existing average of 76.8 to 49.3. This is facilitated by Zig-zag Winding technology, which can reduce harmonics by 36% to 70%. This improvement ensures cleaner power output, which is crucial for the longevity and efficient operation of connected equipment.

Comparison of power waveforms: Existing Transformer (left) vs. Hybrid Transformer (right).
Extended Facility Life & 13.3% Winding Temperature Reduction
The Tie-plate structural design incorporated in hybrid transformers leads to a 13.3% reduction in winding temperature. Specifically, the HV winding temperature drops from 31.8°C to 28.6°C, and the LV winding temperature drops from 9.2°C to 7.6°C. This reduction, ranging from 8% to 13%, directly contributes to increased transformer longevity and reliability.

Thermal imaging comparison: Existing Transformer (79.2°C) vs. Hybrid Transformer (72.6°C).
Energy Conservation & 7.6% Power Loss Reduction
The Hybrid Transformer achieves a 7.6% reduction in total power loss, decreasing from 6,761W to 6,249W. This is attributed to its optimized design and directly translates to significant energy savings and improved efficiency for the end-user, leading to a 15% to 20% reduction in Life Cycle Cost (LCC) compared to conventional transformers.
Detailed Loss Breakdown:
- No-load loss: 0.4% decrease (from 1,739W to 1,732W)
- Load loss: 10.1% decrease (from 5,022W to 4,517W)
- Stray-load loss: 36.2% decrease (from 1,403W to 895W)
Significant energy savings and improved efficiency.
Reduction in Carbon Emissions
Hybrid transformers contribute to a reduced annual CO2 emissions of 2,243 kg. This calculation is based on the National Forest Science Center's standard, where 1 kW of power loss corresponds to 0.5 CO2/kg. The annual losses are reduced by 4,485 kW (from 59,226 kW to 54,741 kW), resulting in the mentioned CO2 output reduction. This highlights the substantial environmental benefit of adopting hybrid transformer technology.

Substantial reduction in annual CO₂ emissions per unit.
Built for Durability: Advanced Construction & Seismic Resistance
The design of the AMC Hybrid Transformer incorporates features for enhanced durability and safety, including robust seismic resistance. This ensures the transformer maintains structural integrity and operational reliability even during significant seismic events, making it a trusted solution for critical infrastructure.
Key components contributing to this resilience include a reinforced support frame, a secure base, and integrated damper bars that absorb and dissipate seismic energy, protecting the core and coils from damaging vibrations.

Detailed diagram of the seismic-resistant components.
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