Power System 250kVA, 13.8kV/0.4kV, 50Hz/60Hz
Certifications IEC 62271-200, IEC 694, GB3906, DIN VDE 0670
Huajidian is a seasoned power equipment supplier. This 13.8 kV 250 kVA dry type distribution transformer was developed for the mainstream 13.8 kV voltage standard overseas, differing from conventional 10 kV transformers in China, with a comprehensively upgraded insulation level. The product is manufactured in its own standardized factory and supports OEM/ODM customization for IP20/IP30 protection enclosures, voltage regulation modes, and accessory options. It can be flexibly adjusted according to project needs and is widely used in various indoor power distribution locations.
The high-voltage winding is vacuum-cast with epoxy resin, resulting in no internal air gaps and extremely low partial discharge. This ensures stable insulation performance for the 13.8kV voltage level, eliminating the risk of insulation breakdown during operation. The cast resin provides excellent moisture, dust, and contamination resistance, ensuring that insulation performance remains unaffected by moisture or dust accumulation even in humid and dusty environments.
The core uses high-permeability oriented cold-rolled silicon steel sheets, combined with a stepped core and fully oblique joint technology. Both no-load and load losses are superior to industry standards, effectively reducing electricity costs over long-term use. The core is secured with high-strength binding, resulting in extremely low vibration and noise during operation, making it suitable for noise-sensitive locations such as hospitals, schools, and office buildings.
The 13.8 kV 250 kVA dry type distribution transformer comes standard with an air self-cooling mode, relying on natural convection for heat dissipation, resulting in zero additional energy consumption and structural stability. Optional crossflow fan upgrade to forced air cooling rapidly increases load capacity to handle sudden high-load conditions. Built-in temperature controller monitors winding temperature in real time, automatically alarming and starting/stopping the fan when limits are exceeded, and triggering trip protection at high temperatures to ensure safe equipment operation.
The entire unit is oil-free, with no leakage, no pollution, and no fire hazard. No separate outdoor installation area is required; it can be directly installed in building power distribution rooms and basements. It also complies with explosion-proof area safety regulations, making it suitable for various scenarios such as shopping malls, hotels, computer rooms, light industrial and chemical plants.
Michigan Automotive Parts Factory Project (USA)
This factory uses the local 13.8kV power supply system. The production line equipment has stringent requirements for power supply stability, safety, and noise reduction; conventional 10kV transformers are not suitable. We customized an IP30 protective enclosure and forced air cooling configuration for it. The equipment has been operating stably for over 10 months since its commissioning. Excellent moisture and dust resistance adapts to complex workshop environments; low-loss design reduces electricity costs; low-noise operation does not affect production, perfectly meeting the medium-voltage power distribution needs of the factory area.
Q1: What is the difference between the 13.8 kV 250 kVA dry type distribution transformer and a conventional 10 kV transformer in China?
A: The core difference lies in the insulation class and applicable voltage standard. The 13.8 kV product has a higher insulation design standard, adapting to North American and overseas power grids. The parameters are different, and they cannot be directly substituted for each other.
Q2: Can this transformer be installed in a basement?
A: Yes. The equipment is oil-free and leak-free, and will not contaminate the underground confined space; equipped with moisture-proof insulation materials and a temperature control system, it can adapt to the humid environment of a basement, making it an ideal device for basement power distribution rooms.
Q3: What customization services are available for this 13.8 kV 250 kVA dry type distribution transformer?
A: We support full-process OEM/ODM customization, and offer options for IP20/IP30 protection ratings, voltage regulation methods, and compatible accessories. We can also optimize configurations for special operating conditions such as high humidity, dust, and low noise.
Address
Room 2106, West End, Guangfeng Building, Ouhai District, Wenzhou City, Zhejiang Province, China
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