Dry Type Distribution Transformers
Installation Flexibility
Operational Reliability
Smart Grid Compatibility
Environmental Sustainability
Superior Safety Performance
Dry Type Distribution Transformers
Key Features:
No Liquid Coolant: Eliminates the risk of oil leaks, fires, or environmental contamination.
Low Maintenance: No need for oil monitoring or replacement, reducing operational costs.
Fire-Resistant & Eco-Friendly: Non-flammable insulation materials (e.g., epoxy resin or vacuum pressure impregnated windings) enhance safety.
Compact & Versatile: Suitable for indoor and outdoor installations, including hospitals, schools, and data centers.
High Efficiency: Meets energy efficiency standards (e.g., in compliance with: IEC60076-11, IEC61378-1, UL1446).
Applications of Dry Type Distribution Transformers
1. Commercial Buildings & Infrastructure
2. Industrial Facilities
3. Renewable Energy Systems
4. Critical Infrastructure
5. Special Environments
6. Smart Grid Applications
Dry Type Distribution Transformers Technical Specifications
|
Category |
Parameter |
Specification |
|
Basic Ratings |
Rated Capacity |
Up to 10 MVA |
|
Rated Primary Voltage |
3kV-13.8 kV (±10% tolerance) |
|
|
Rated Secondary Voltage |
120V-480V |
|
|
Frequency |
50Hz/60Hz |
|
|
Performance |
Efficiency |
>95% |
|
Tap Range |
±5% or 2×2.5% |
|
|
Construction |
Design Type |
Three-phase, dry-type iron core, open type |
|
Winding Material |
Copper/Aluminum |
|
|
Terminal Type |
Copper bus bars |
|
|
Insulation Structure |
VPI (Vacuum Pressure Impregnated) |
|
|
Cooling & Thermal |
Cooling Method |
Natural air-cooled (AN) with effective cooling design |
|
Insulation Class |
H (180°C) standard, C class optional, R (220°C) certified |
|
|
Insulation System |
UL1446 compliant |
|
|
Protection |
Protection Class |
IP00 (indoor mounting) |
|
Fire Resistance |
Fire-resistant materials |
|
|
Environmental |
Maximum Elevation |
≤1000m above sea level |
|
Maximum Humidity |
95% (non-condensing) |
|
|
Certifications |
Temperature Class Certified |
Class H (180°C) & Class R (220°C) |
Why Choose LTEC's Dry Type Distribution Transformers?
LTEC – Powering Your Systems with Innovation!
Enhanced Safety & Environmental Benefits
100% Flame-Retardant: UL-certified epoxy resin encapsulation prevents fire propagation (meets IEC 60076-11 standards).
Zero Oil Leaks: Eliminates soil/water contamination risks in sensitive areas (hospitals, data centers).
Low Toxicity: No PCBs or hazardous coolants - compliant with RoHS/REACH regulations.
Superior Engineering & Performance
High Efficiency Models: Up to 98.5% efficiency (meets DOE 2016 & EU Tier 2 standards).
Advanced Cooling Design: Patented ventilation channels enable 150°C rise operation.
Low Noise Operation: <55dB sound rating for urban installations (NEMA ST-20 compliant).
Extreme Environment Adaptability
Tropicalized Versions: Moisture-resistant (95% RH) with anti-fungal treatment.
Corrosion-Protected: Salt-spray tested for coastal/offshore applications.
High-Altitude Options: Special designs for 4000m+ elevation operation.
Smart Grid Readiness
IoT-Enabled Models: Built-in temperature/load monitoring (Modbus RTU/Profibus).
Harmonic Mitigation: K-Factor 4/13/20 designs for nonlinear loads.
Bi-Directional Capability: Supports renewable energy integration.
Maintenance & Operational Advantages
Self-Cleaning Coils: Nano-coating reduces dust accumulation.
Modular Design: Front-access terminals simplify installation.
30-Year Design Life: Accelerated aging tests verify longevity.
Customization Capabilities
Voltage Flexibility: 600V-35kV with multi-tap options (±2×2.5%).
Special Configurations: Delta-Zigzag, Dual Secondary, etc.
Compact Sizes: 40% smaller than conventional dry-types.
Compliance & Certifications
Global Approvals: UL/cUL, CE, IEC, GOST, CCC.
Seismic Rated: Certified for Zone 4 seismic activity.
Cyclone-Resistant: Wind-load tested to 200km/h.
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