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A Dry Type Transformer is a power transformer that uses air and solid insulation materials instead of insulating oil for cooling and electrical insulation. Unlike oil immersed transformers, dry type transformers are oil-free, fire-resistant, and environmentally friendly, making them especially suitable for indoor installations and areas with high safety requirements.
Lugao Power designs and manufactures Dry Type Transformers engineered for stable voltage transformation, low losses, and enhanced operational safety. These transformers are widely used in commercial buildings, data centers, hospitals, industrial plants, and urban power distribution systems where fire safety and environmental protection are critical.
Lugao is a leading manufacturers and suppliers in China. Lugo dry-type transformers eliminate oil leaks and fire hazards; are low-maintenance; are safer to operate in densely populated or confined spaces; and meet modern green energy and environmental standards.
Lugao Dry Type Transformers are engineered with advanced resin casting technology to deliver high safety, low loss, and long-term operational reliability. Designed for modern power distribution systems, our transformers meet both domestic and international technical standards.
Low Energy Loss
Optimized magnetic core design ensures energy losses lower than national standard requirements, helping users reduce operating costs over the transformer’s lifetime.
Ultra-Low Partial Discharge
Partial discharge level ≤ 5 pC, ensuring excellent insulation integrity and extended service life.
Low Noise Operation
Noise level ≤ 56 dB, making the transformer suitable for noise-sensitive environments such as commercial buildings, hospitals, and urban substations.
High Short-Circuit Withstand Capability
Fully compliant with national short-circuit withstand tests, guaranteeing mechanical and electrical stability under extreme fault conditions.
Optimized Structure & Aesthetic Design
Compact structure with a clean, modern appearance, offering multiple configuration options for different installation environments.
Lugao resin casting dry type transformers have achieved up to 25MVA capacity and 35kV voltage level under natural air cooling, with a BIL rating of 170kV.
All products comply with China National Standards, ANSI, British Standards, and other international requirements.
Fire-Resistant & Safe
Non-flammable insulation materials reduce fire risk and improve personnel safety.
Environmentally Friendly
Oil-free design avoids pollution and meets eco-friendly project requirements.
Stable Electrical Performance
Optimized winding and insulation structure ensure stable voltage output and low partial discharge.
Compact & Space-Saving
Suitable for indoor substations, basements, and limited installation spaces.
Low Noise Operation
Ideal for commercial buildings, residential areas, and public facilities.
Custom Design Available
Tailored voltage levels, capacities, and insulation classes based on project needs.
Lugao Power follows strict manufacturing procedures from raw material selection to final testing. Each Dry Type Transformer undergoes:
Insulation resistance testing
Partial discharge testing
Temperature rise testing
Functional and safety inspections
Our production lines and testing laboratories ensure consistent quality for every unit delivered.
Q1: Can dry type transformers be used outdoors?
It is mainly designed for indoor use. Outdoor installation is possible with appropriate enclosures.
Q2: Are dry type transformers suitable for high-load operation?
Yes. With proper design and ventilation, they can operate reliably under continuous load.
Q3: Do you provide technical drawings before production?
Yes. Drawings and specifications are confirmed with clients before manufacturing.
