Power System 50kVA, 10kV/0.4kV, 50Hz/60Hz
Certifications IEC 62271-200, IEC 694, GB3906, DIN VDE 0670
The 10 kV 50 kVA distribution transformer is Huajidian's flagship small-scale power distribution core equipment, specifically designed for complex operating conditions such as outdoor, humid, and dusty environments. Compared to large industrial transformers, this product focuses on miniaturization, energy saving, and high cost-effectiveness, perfectly matching scattered, small-capacity power consumption scenarios such as rural power grid renovation, street lighting power supply, small factories, and remote scenic areas.
Leveraging its dedicated production line, Huajidian employs standardized and mature processes for everything from core processing and coil winding to tank welding and vacuum oil filling, ensuring no corner-cutting is involved. All equipment undergoes rigorous testing before leaving the factory, including withstand voltage, insulation resistance, and temperature rise tests, fully complying with national and IEC international standards. As a reliable supplier in the power industry, Huajidian continuously provides high-quality, stable, and long-lasting small distribution transformers for small-scale power projects worldwide.
The 10 kV 50 kVA distribution transformer core uses high-permeability cold-rolled silicon steel sheets, combined with a fully oblique joint process, significantly reducing no-load and load losses. Compared to ordinary small transformers, it consumes less energy during long-term operation, effectively reducing long-term electricity costs for small-budget projects and continuously generating economic benefits for users.
High and low voltage windings are wound with oxygen-free copper wire, combined with special aging-resistant insulation materials and transformer oil for double insulation protection, ensuring sufficient creepage distance. The high-voltage side is equipped with multi-layered umbrella-skirt porcelain bushings, effectively preventing flashover failures in rainy weather. The equipment can operate stably for a long time in humid, dusty, and outdoor environments with an extremely low failure rate.
The oil tank is constructed of thickened cold-rolled steel plate with an outer coating of anti-corrosion and weather-resistant paint, resisting wind, sun, and rain. It is rust-free even after more than ten years of outdoor installation. The top oil conservator automatically compensates for the thermal expansion and contraction of the transformer oil, and, in conjunction with a dehumidifier, filters moisture from the air, delaying oil aging and extending equipment lifespan. The side corrugated heat sink has a large heat dissipation area, relying on natural air convection for cooling, eliminating the need for additional fans, saving energy and reducing potential failure points.
The 10 kV 50 kVA distribution transformer is manufactured using standardized processes with strict quality control. The nameplate on the side of the unit clearly indicates the model, capacity, voltage level, and other core parameters, allowing maintenance personnel to quickly read the information without consulting complex manuals, making daily maintenance convenient and efficient.
In 2025, Huajidian provided 32 10 kV 50 kVA distribution transformers for a rural power grid upgrade project in Wenzhou, Zhejiang Province. This project covered several remote villages and small agricultural processing workshops, with dispersed power points and equipment installed on outdoor poles, exposed to a consistently humid and rainy environment, and a limited project budget.
Based on the project's actual needs, our small distribution transformers were successfully selected due to their high cost-effectiveness, strong weather resistance, and low energy consumption. Since being put into operation for over a year, all equipment has operated stably without insulation failures or oil leaks. The ultra-low loss design reduced the project's annual electricity operating costs by approximately 12%, while the equipment's low maintenance requirements significantly reduced the later maintenance burden on the power grid department, earning high praise from the client and fully validating the product's adaptability and reliability in rural power grid upgrades and small-scale, scattered power supply scenarios.
Huajidian is located in Wenzhou, Zhejiang Province. It owns a professional factory and a dedicated production line for 10kV distribution transformers, equipped with a full set of standardized production equipment and testing instruments, realizing integrated services of R&D, production, testing, and sales.
In terms of production capacity, the factory has high mass production efficiency for small transformers, capable of simultaneously meeting bulk orders for power grid upgrades and customized needs for individual projects, ensuring timely delivery without delays. Regarding customization, product voltage levels, wiring groups, and accessory configurations can all be adjusted according to project requirements, supporting both standard specifications and personalized customization for special operating conditions.
In terms of service, a professional technical team provides full-process support, including selection guidance, installation guidance, and after-sales maintenance. Users can receive timely technical support throughout the process, completely eliminating concerns about lack of after-sales support.
Q1: Does this transformer require additional protection for outdoor pole mounting?
No additional protection is required for standard outdoor installation. The equipment comes with a standard anti-corrosion and weather-resistant coating and can be directly used for pole mounting, suitable for most outdoor operating conditions. For special environments with high salt spray and strong corrosion along the coast, a customized reinforced anti-corrosion coating can be used to further improve the equipment's weather resistance and service life.
Q2: What is the daily maintenance cycle and difficulty of the equipment?
The equipment is extremely easy to maintain, requiring no frequent maintenance. Routine checks only require checking the oil level, tank appearance, and bushing condition. When the desiccant in the oil conservator desiccant changes color, simply replace the desiccant. Frequent oil changes and complex adjustments are unnecessary, significantly saving maintenance time and costs.
Q3: Does the 10 kV 50 kVA distribution transformer support customized parameters and accessories?
Customization is supported for all scenarios. Core parameters such as transformer voltage level and wiring method can be adjusted according to the actual needs of the project. It can also be equipped with supporting accessories such as temperature control and protection devices. Whether it's a standard model or a customized model for special operating conditions, we can respond quickly and deliver efficiently.
Address
Room 2106, West End, Guangfeng Building, Ouhai District, Wenzhou City, Zhejiang Province, China
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