Unlike traditional transformer units, the painted box transformer is enclosed within a corrosion-resistant, powder-coated housing that ensures long-lasting protection against rain, dust, and ultraviolet exposure. Its design enables easy deployment in outdoor substations, rural electrification projects, smart cities, and industrial complexes.
Engineered as a compact box-type substation, it integrates core electrical functions in a single modular unit, saving installation space and reducing system complexity. Options include outdoor painted box transformers, rural power distribution transformers, and customized painted enclosure transformer equipment.
Main Features
Durable painted enclosure with anti-corrosion coating.
Compact and modular design for flexible installation.
Integrated high-voltage and low-voltage switchgear.
High insulation performance for reliable operation.
Weatherproof housing for outdoor applications.
Customizable configurations to match project needs.
Key Advantages
Long service life thanks to robust painted steel housing.
Reduced installation time with pre-assembled modules.
Space-saving solution ideal for urban and rural grids.
Enhanced safety with built-in protection devices.
Cost-effective maintenance due to sealed and painted enclosure.
Applications
Urban power distribution in residential communities and commercial complexes.
Rural electrification projects, ensuring stable grid connections.
Renewable energy plants such as solar and wind power stations.
Industrial facilities requiring reliable medium-voltage distribution.
Smart grid infrastructure where compact and weatherproof solutions are essential.
Installation & Maintenance
Installation Steps:
Position the unit on a flat, stable concrete base.
Connect high-voltage input and low-voltage output terminals.
Ensure proper grounding according to electrical codes.
Inspect painted enclosure for scratches or damages before energizing.
Maintenance Guidelines:
Regularly check enclosure paint for corrosion or wear.
Monitor oil (for oil-type units) or insulation status.
Inspect circuit breakers and protective relays.
Keep ventilation unobstructed for optimal cooling
How to Choose the Right Painted Box Transformer
Capacity & rating: Match kVA/MVA to load requirements.
Voltage compatibility: Ensure proper HV/LV levels.
Environment: Choose painted housing with UV and corrosion resistance for outdoor use.
Application type: Residential, industrial, or renewable grid.
Standards compliance: Verify IEC, ANSI, or local certifications.
Future scalability: Opt for modular painted box transformer equipment for growing needs.
FAQ
What is a painted box transformer?
It is a compact substation integrating a transformer and distribution equipment in a painted enclosure
Why is the enclosure painted?
The paint provides corrosion resistance, UV protection, and extended outdoor durability.
Can painted box transformers be installed outdoors?
Yes, their weatherproof design makes them ideal for outdoor environments.
What is the lifespan of this equipment?
Typically 20–30 years with proper maintenance.
Where are painted box transformers most commonly used?
They are widely used in residential communities, industrial parks, and renewable power stations.






