Dry-type power distribution transformers with capacities ranging from 16 to 3,200 kVA and voltage classes of 6 or 10 kV are widely used in distribution networks and step-down substations. Their design, free from combustible materials, makes them suitable for installation in densely populated areas and at sites remote from emergency and fire response services.

Key Technical Specifications:

• Rated Power: 16 to 3,200 kVA
• Nominal High Voltage (HV Winding): 3.15; 6; 6.3; 10; 10.5 kV
• Nominal Low Voltage (LV Winding): 0.23; 0.4; 0.69; 6; 6.3; 10; 10.5 kV
• Frequency: 50 or 60 Hz
• Winding Connection and Group: D/Yn - 11; Y/Yn - 0
• Thermal Class: F
• Climatic Version: any
• Protection Degree: IP00 - IP54
• Seismic Resistance: up to 9 points on the MSK-64 scale
• Warranty Period: from 3 years
• Service Life: from 30 years

These transformers offer flexible configurations with various input designs, enabling their application in energy facilities across different economic sectors.

Transformer Design Features:

• Magnetic Core: Made from rolled anisotropic electrical steel with low specific losses; assembled using the "Step-lap" technique with full miter joints.
• Windings: Manufacturing technology ensures dimensional stability throughout the service life; use of transposed conductors enhances electrodynamic resistance during short circuits and reduces additional losses.
• Active Part: Design reduces additional losses in metal structures by 1.5 times.

SVEL Group produces dry-type power transformers with capacities from 25 to 25,000 kVA and voltage classes up to 35 kV.

Service Offerings Include:

• Supervision of installation (technical guidance and oversight)
• Maintenance of installed transformers
• Installation recommendations
• Warranty service and repair
• Equipment delivery insurance

Available Documentation for Download:

• Questionnaire: Dry-type power transformers
• Catalog: "Dry-type transformers"