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The Low Voltage High Current Electrical Transformer is a sophisticated and reliable solution designed to cater to a variety of demanding industrial and laboratory applications. Engineered by ZHENGXI, a renowned name in electrical technology, this transformer stands out due to its exceptional build quality, advanced performance capabilities, and extensive application versatility. Below, we dive deeply into the core features, benefits, applications, and technical parameters of this transformative product.

Premium Quality Core Construction
At the heart of this transformer lies a premium-grade iron core constructed from cold-rolled, grain-oriented silicon steel sheets. This specialized material significantly enhances the magnetic permeability and reduces hysteresis loss. The precise construction of the core optimizes transformer efficiency and reliability, significantly reducing energy consumption during operation.
Robust and Durable Design
The transformer incorporates H-class enameled wire, known for its exceptional heat resistance and electrical insulation properties. Additionally, the galvanized frame provides an extra layer of protection against corrosion and external damage, enhancing durability. The exposed coil design not only allows rapid heat dissipation but also presents an aesthetically pleasing appearance, which is beneficial in open-installation environments.
Innovative Varnishing Technique
A unique varnishing and oven-drying process significantly reduces operational noise and vibration. This advanced procedure ensures coils and other internal components remain rigidly fixed, enhancing transformer stability and prolonging service life. Users benefit from a quieter operational environment, making it ideal for installation in noise-sensitive settings.
Advanced Insulation Materials
The transformer integrates advanced, high-temperature-resistant insulation materials alongside innovative processing technologies. This ensures superior energy efficiency and reduces operational noise. By providing exceptional thermal resistance, the transformer reliably operates under high-load conditions without overheating, enhancing overall system safety.
Energy-Efficient and Quiet Operation
Designed for optimal performance, the transformer features energy-efficient coils with strategically placed ventilation slots. This design facilitates superior airflow, rapidly lowering coil temperatures and effectively preventing overheating. Users benefit from consistently smooth operation, even under continuous and demanding workloads, ultimately leading to lower operational costs and increased efficiency.
Technical Specifications
Parameter | Specification |
---|---|
Brand | ZHENGXI |
Model | DDG |
Phase | Single-phase, Three-phase |
Capacity | Single-phase: 0.1kVA-200kVA; Three-phase: 0.5kVA-1600kVA |
Input Voltage | Single-phase 220V; Three-phase 380V |
Output Voltage | Customizable; standard 220V (single-phase), 380V (three-phase) |
Waveform Distortion | No distortion compared to input waveform |
Voltage Change Rate | ≤1.5% |
Insulation Class | Class F, H, HC available (Regular H class, up to 180℃) |
Work Efficiency | ≥96% (inductive isolated) |
Frequency | 50/60Hz |
Overload Capability | 1.2 times rated load for 1 hour, long-term full load capable |
Temperature Rise | ≤60℃ |
Noise | <35dB (within one meter) |
Insulation Resistance | ≥150MΩ |
Dielectric Strength | 2000VAC/1min |
Design Life | 20 years |
Working Environment | -20~+50℃; Humidity ≤95%RH (non-condensing) |
Workplace Conditions | No corrosive gases or conductive dust |
Safety Standards | VDE0550, IEC439, JB5555, GB226 compliant |
Cooling Method | Dry air cooling |
Extensive Application Range
The Low Voltage High Current Electrical Transformer is designed explicitly for applications demanding very high current outputs at substantially reduced voltages. Commonly utilized primary voltages include 220V, 380V, and 650V, with customizable secondary voltages like 3V, 6V, 9V, 12V, 15V, 24V, and 36V available. This transformer is ideal for operations such as continuous load experiments, various heating applications, machine disconnection procedures, boiler operations, electroplating and metal forging annealing processes, welding equipment, spot welding temperature tests, protection characteristic experiments, and electrical parameter measurement tasks.
Unmatched Operational Flexibility
One of the standout features of this transformer is its capability for stepless voltage regulation on the low-voltage side, achievable through adjustable supply-side voltage control. This flexibility allows precise tuning to specific requirements, catering to the exact needs of each unique application. Industries benefit from precise, consistent results, enhanced product quality, and improved safety standards.
Long-Term Reliability and Maintenance-Free Operation
Designed with long-term reliability in mind, this transformer offers a remarkable design life of up to 20 years. The robust construction, advanced insulation materials, and superior core and winding materials ensure a low-maintenance, trouble-free operation even under continuous heavy-duty use. Such durability reduces overall operational downtime and minimizes lifecycle costs significantly.
ZHENGXI’s Low Voltage High Current Electrical Transformer is an innovative, efficient, and robust solution designed for specialized high-current, low-voltage applications. Its meticulous construction and advanced features ensure reliable, efficient performance while significantly enhancing operational safety and reducing overall maintenance costs. For industries requiring reliable, high-performance transformers capable of sustaining rigorous operational demands, this product emerges as a clear choice, combining cutting-edge technology with practical usability.