Overview
Widely applied in power grid distribution, industrial manufacturing, and civil power supply systems, oil immersed transformers stand out for their reliable heat dissipation, excellent dielectric insulation, and long operational lifespan. Unlike dry-type transformers, they perform stably under high-load and outdoor harsh environments, making them the preferred power conversion equipment for medium and large-scale power distribution projects. As a professional transformer manufacturer with independent core component production capacity, Hebei Hozee Electric Co., Ltd. focuses on the R&D, production and customization of oil immersed transformers, dry-type transformers, and precision iron cores including laminated cores and single-phase winding cores. The company's product portfolio covers standardThree Phase Transformer series and customized 50kva Single Phase Transformer models, covering residential, commercial and industrial power supply scenarios to meet diversified global procurement standards.
Core Components and Key Functional Principles
The stable and efficient operation of oil immersed transformers depends on the perfect matching of core structural components. Each part has independent technical functions, working together to realize safe voltage conversion, loss reduction operation and continuous heat circulation. Below is an in-depth introduction to the core components and practical functions with industry-specific technical details.
1. Precision Engineered Iron Core
The iron core serves as the core magnetic circuit carrier of transformers, directly determining no-load loss and operational efficiency. Most conventional transformers suffer from high eddy current loss and severe magnetic flux leakage due to inferior core materials. To solve this industry pain point, Hozee Electric adopts high-grade oriented silicon steel sheets to produce self-developed laminated cores. The optimized stacking process reduces no-load loss by 8%-12% and effectively lowers operational noise. Meanwhile, the customized single-phase winding cores are specially calibrated for 50kva Single Phase Transformer and small-capacity single-phase power equipment. With compact dimensional tolerance and uniform magnetic conductivity, the cores ensure stable output and low energy consumption in long-term low-load operation.
2. High-Efficiency Copper Winding
As the key circuit component for electric energy conversion, transformer windings are divided into high-voltage and low-voltage groups. Hozee Electric adopts 99.9% high-purity copper conductors and multi-layer composite insulating wrapping for all windings, which improves current conductivity and enhances insulation durability. For industrial and civil Three Phase Transformer products, the company adopts a balanced symmetric winding layout to guarantee three-phase current balance within ±1%, avoiding voltage deviation and equipment burnout caused by unbalanced load. For the mainstream 50kva Single Phase Transformer, the winding density and coil spacing are professionally optimized to eliminate local overheating risks and improve continuous load resistance, adapting to long-hour household and commercial power supply conditions.
3. Insulating Oil and Sealed Steel Oil Tank
Insulating oil is the essential functional medium of oil immersed transformers, undertaking three core functions of electrical insulation, circulating heat dissipation and internal arc suppression. The fully submerged design of internal core and windings completely isolates live parts from external air, preventing short-circuit and electric leakage faults. The high-viscosity anti-aging insulating oil selected by Hozee Electric maintains stable heat conduction performance in the temperature range of -20℃ to 40℃, efficiently taking away heat generated by electromagnetic operation. Matched with integrally welded thickened steel oil tanks, the equipment features strong pressure resistance and corrosion resistance, adapting to outdoor rain, dust and other harsh working conditions and extending the overall service life.
4. Professional Auxiliary Safety and Heat Dissipation System
The complete auxiliary system composed of radiators, oil conservators, insulating bushings and on-load tap changers ensures the safe and stable long-term operation of transformers. The enhanced radiator structure accelerates internal oil circulation, reducing equipment operating temperature by 5-8℃ under full load. The oil conservator can automatically compensate the volume expansion and contraction of insulating oil caused by temperature changes, avoiding oil leakage and air oxidation. High-strength insulating bushings ensure safe connection between internal windings and external circuits, while adjustable tap changers flexibly adapt to fluctuating grid voltage, realizing stable and constant voltage output.
Product Advantages and Global Supply Strength
Different from ordinary manufacturers that purchase external core accessories, Hozee Electric realizes independent production of full-series supporting cores. All Three Phase Transformer and 50kva Single Phase Transformer products are equipped with self-produced laminated cores and single-phase winding cores, realizing controllable product quality and customizable technical parameters. Relying on precise production processes and strict quality inspection standards, our transformers feature low energy consumption, low noise, high safety and long service life. All products comply with IEC, ISO and other international electrical standards, and have been steadily exported to Europe, Southeast Asia, Africa and other global markets, providing cost-effective and reliable power distribution solutions for industrial parks, municipal power grids and residential power supply projects.