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three phase cast resin dry type transformer

Lugao Power three phase cast resin dry type transformers utilize high-strength insulation materials and precision casting technology, offering oil-free, fire-resistant, and explosion-proof operation, ensuring safety and environmental protection.  They are suitable for indoor and high-density environments. The products are resistant to moisture and dust, feature low losses and low maintenance, guaranteeing stable power supply for industrial plants, commercial buildings, transportation systems, and urban power distribution. With international certifications such as ISO9001, CCC, and CE, Lugao provides highly reliable power solutions, effectively reducing operating risks and maintenance costs, and supporting customers in building safe, efficient, and sustainable power systems.

Key Features & Benefits 

Safety & Fire Resistance

Oil-free design, epoxy resin cast insulation, fireproof and explosion-proof, suitable for indoor, high-density, and public places. Lugao strictly controls the manufacturing process to ensure that each transformer meets international safety standards.


High Reliability & Durability

High-quality core and winding materials, resistant to moisture, dust, and overload, ensuring long-term stable operation. ISO9001, CCC, and CE certifications guarantee product consistency and reliability.


Low Maintenance & Cost Efficiency

Dry-type design eliminates the need for oil testing or replacement, reducing maintenance costs and downtime risks. High-efficiency energy consumption design reduces long-term operating costs.


Environmental & Space Friendly

Green and environmentally friendly materials, no oil pollution, reducing environmental risks. Compact structure, small footprint, suitable for buildings, commercial complexes, and industrial plants.


Versatile Applications

Suitable for urban power distribution, industrial plants, transportation systems, commercial buildings, and new energy projects. Lugao provides customized solutions, optimizing capacity, cooling methods, and structure according to project needs.


Lugao Power's three phase cast resin dry type transformers combine safety, environmental friendliness, low maintenance, high reliability, and high performance, providing customers with stable, efficient, and sustainable power solutions, helping to reduce operating risks and costs, and ensuring continuous power supply for critical facilities.

Cast Resin Transformer vs Oil-Immersed Transformer

Features three phase cast resin dry type transformer Oil-Immersed Transformer
Insulation and Cooling Epoxy resin cast windings, natural/forced air cooling, oil-free The windings are immersed in mineral oil, which is cooled naturally or by forced cooling.
Safety Oil-free, fireproof and explosion-proof, suitable for indoor and high-density locations It is flammable and requires installation in a fire-resistant room or dedicated indoor space.
Maintenance Costs Low maintenance, no oil inspection or replacement required, easy maintenance Regular oil testing and replacement are required, resulting in high maintenance costs.
Environmental Friendliness Environmentally friendly materials, no oil pollution There is a potential risk of oil leakage or contamination.
Installation Flexibility Compact, small footprint, can be installed indoors or in areas near people It occupies a large area and usually requires outdoor or dedicated space for installation.
Environmental Resistance Moisture-resistant, dustproof, and corrosion-resistant Additional protective measures are needed in outdoor or high-humidity environments.
Application Scenarios Suitable for commercial buildings, high-rise buildings, hospitals, subway stations, industrial plants, and power distribution systems Suitable for high-voltage substations, large industrial facilities, outdoor substations, and heavy-duty factories.
Efficiency and Lifespan High efficiency, long-term stable operation, and long service life High efficiency, capable of handling large capacity loads, and has a long lifespan, but requires oil maintenance.
Cost Slightly higher initial investment, but low long-term maintenance costs Initial investment is relatively low, but long-term maintenance costs are high.

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