HJ-AMT-D Series Amorphous Alloy Transformer – Dry
Up to 35kV / Ultra-Low Loss / Fire-Retardant / High ROI
The HJ-AMT-D Series Amorphous Alloy Transformer (Dry-Type) is the ultimate synthesis of extreme energy efficiency and absolute indoor safety. By integrating an advanced amorphous metal ribbon core with premium vacuum-cast epoxy resin encapsulation, it reduces no-load losses by up to 70%-80% while completely eliminating fire and explosion risks. It is the premium choice for critical indoor infrastructure demanding both rigorous safety compliance and a maximized Return on Investment (ROI).
Ideal for Premium Indoor & High-Density Facilities:
- ✓ Mega Data Centers (IDC) & Telecom Hubs
- ✓ Underground Subways, Railways & Airports
- ✓ High-Rise Commercial Towers & Hospitals
- ✓ Eco-Friendly (LEED) Smart Buildings
1. Breakthrough Amorphous Core Efficiency
At its heart lies an advanced amorphous metal ribbon core. This randomized, glass-like atomic structure allows for incredibly easy magnetization, slashing hysteresis and eddy current losses. The result is a staggering 70% to 80% reduction in no-load (standby) losses compared to conventional silicon steel dry-type transformers, delivering massive long-term energy savings.
2. Absolute Fire Safety (Zero Oil)
Combining high efficiency with uncompromising safety. The high-voltage windings are hermetically encapsulated in flame-retardant, self-extinguishing epoxy resin under vacuum. With absolutely zero insulating oil, there is no risk of toxic leakage, fire propagation, or explosion, allowing installation directly at the indoor load center to minimize LV cable losses.
3. Global Voltage Matching & Compliance
We seamlessly merge cutting-edge amorphous technology with our mature global manufacturing platform. Whether your regional utility requires 11kV, 13.8kV, 20kV, 22kV, or 33kV primary voltages, we custom-engineer the HJ-AMT-D to match your exact national grid specifications and vector group requirements flawlessly.
4. Exceptional Overload & Low PD Rating
The vacuum resin casting eliminates internal air voids, ensuring Partial Discharge (PD) levels remain strictly ≤ 10pC for decades of reliable service. Furthermore, when equipped with an automated cross-flow cooling fan system (AF mode), the transformer can safely sustain a temporary 40% capacity overload to handle sudden peak demands.
Global Factory Acceptance & Turnkey Support
Every HJ-AMT-D transformer undergoes comprehensive testing strictly compliant with IEC 60076-11 standards. We rigorously validate the ultra-low no-load loss metrics alongside dielectric withstand and PD tests. We provide comprehensive FAT reports and carbon-reduction calculations to support your project's green energy certifications.
Performance Matrix & Technical Specifications
(Note: The matrix below outlines our standard capacities up to 2500kVA for Amorphous Alloy Dry-Type Transformers. Specific voltages, IP enclosures, and insulation classes are fully adaptable to meet your local utility requirements.)
| Parameter / Rated Power | 50kVA | 250kVA | 500kVA | 1250kVA | 2500kVA |
|---|---|---|---|---|---|
| Primary Voltage | Up to 35kV (e.g., 10kV, 11kV, 13.8kV, 20kV, 33kV) | ||||
| Secondary Voltage | 0.4kV / 0.415kV / 0.433kV / 0.480kV | ||||
| Cooling Mode | AN / AF | AN / AF | AN / AF | AN / AF | AN / AF |
| Typical Impedance (%) | 4.0% | 4.0% | 4.0% | 6.0% | 6.0% |
| Core Material | Amorphous Metal Ribbon (Ultra-Low Loss) | ||||
| Insulation Class | Class F (155°C) / Class H (180°C) | ||||
| Enclosure Rating Options | IP00 (Core only) / IP20 (Indoor Box) / IP23 (Outdoor Weather-proof) | ||||
| Compliance Standards | IEC 60076-11 / IEEE C57.12.01 | ||||
General System Ratings
- Energy Savings: Reduces no-load losses by 70% to 80% compared to standard silicon steel cast resin transformers.
- ESG & Carbon Footprint: Ideal for securing LEED certifications for green buildings and reducing facility OPEX.
- Cooling Capacity Boost: Forced air (AF) cooling safely increases rated capacity by up to 40% during temporary peak demands.
- Partial Discharge Level: ≤ 10 pC, ensuring exceptional long-term dielectric integrity.
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