1. What Is a Dry Type Transformer?
A dry type transformer is a power distribution transformer without liquid oil insulation. It uses cast epoxy resin or air natural cooling to insulate windings, completely eliminating flammable mineral oil compared to traditional oil immersed transformers.
As a core piece of medium-low voltage power equipment, it converts high-voltage grid electricity into safe usable low voltage power for all types of indoor power consumption scenarios.
2. Core Advantages of Dry Type Transformer
Fire Safety & Environmental Protection
The epoxy resin winding structure is flame retardant and self-extinguishing. No oil leakage risk, no fire hazard, zero pollution to soil and water. Perfect for densely populated indoor areas such as shopping malls, hospitals, underground parking lots and data centers.
Low Maintenance & Long Service Life
Without oil storage tanks, oil filters and regular oil replacement procedures. The fully sealed cast winding resists moisture, dust and chemical corrosion. Normal service life can reach over 30 years, greatly cutting long-term operation costs for property owners and engineering contractors.
Stable Operation & Low Noise
Advanced electromagnetic winding design reduces vibration and running noise. It works stably under high temperature, high humidity and coastal salt fog environments, widely applied in coastal industrial parks and offshore supporting projects.
Flexible Installation
No fire isolation room required. It can be placed directly inside distribution rooms, underground substations and integrated box transformer units, saving construction space and civil engineering investment.
3. Main Application Scenarios
- Commercial Real Estate: Shopping centers, office buildings, hotels, schools and hospitals
- New Energy Infrastructure: DC fast EV charging stations, photovoltaic energy storage stations
- Industrial Plants: Manufacturing workshops, chemical factories, food processing plants
- Public Infrastructure: Metro stations, data centers, underground utility tunnels
- Special Projects: Marine supporting facilities, high-rise residential buildings
4. Key Technical Specifications We Supply
Our factory produces standard cast resin dry type transformers ranging from 10kVA to 25000kVA, supporting customized voltage combinations (10kV/0.4kV, 20kV/0.4kV etc.):
- Cooling method: AN/AF (natural air cooling / forced air cooling)
- Insulation class: F / H class high temperature resistant
- Protection grade: IP00, IP20, IP23 for different indoor environments
- Compliance standards: IEC 60076, CE, ISO9001 international certification
5. Why Choose Our Dry Type Transformer?
With 15 years of professional experience in power equipment manufacturing, we integrate independent R&D, precision casting production and full OEM & ODM customization services.
- Strict raw material inspection: Pure copper windings, high-density epoxy resin to guarantee low loss and high efficiency
- Customizable parameters, size, protection shell and temperature monitoring system
- Full test reports before delivery, supporting third-party inspection for overseas project tender
- One-stop matching service with medium voltage switchgear, low voltage cabinets and DC EV chargers to form complete box substation solutions
- Professional after-sales technical team to support overseas installation guidance and long-term spare parts supply
