2025-07-23
The following are the typical specifications, dimensions and weight ranges of a 1600 kVA transformer. It should be noted that these data are only estimates and can vary significantly depending on factors such as specific model, manufacturer, voltage level and additional configurations. If you need information about transformers, please contact our company, a well-known manufacturer in China.
1. Type: Dry-Type (Cast Resin or VPI) vs. Liquid-Filled (Mineral Oil, Silicone, or Ester Fluid).
2. Voltage Class: Low Voltage (LV) only (e.g., 480V secondary) vs. Medium Voltage (MV) Primary (e.g., 5kV, 15kV, 25kV, 35kV) with LV secondary.
3. Enclosure: Open (ventilated), NEMA 1 (indoor), NEMA 3R (outdoor weatherproof) - enclosures add size and weight.
4. Cooling: AA (self-cooled) vs. AFA (self-cooled + forced air) - Fans add weight/size.
5. Core Material: CRGO (standard) vs. Amorphous Metal (more efficient, larger/heavier core).
6. Accessories: Tap Changer (manual or automatic), Temperature monitors, Surge arresters, etc.
7. Standards & Certifications: UL, CSA, IEEE, ANSI, IEC, etc.
Rating: 1600 kVA
Frequency: 60 Hz (North America), 50 Hz (Many other regions)
Primary Voltage (Typical MV): 5kV, 7.2kV, 12.47kV, 13.2kV, 13.8kV, 24.94kV, 34.5kV (Delta or Wye)
Secondary Voltage (Typical LV): 208Y/120V, 480Y/277V, 600V (Delta or Wye)
Impedance (%Z): Commonly 5.75% for LV, 5.5%-6.5% for MV. Can be specified otherwise (e.g., 4%, 8%).
Insulation Class: 150°C (dry-type), 220°C (liquid-filled) - System temperature rise is usually 115°C or 150°C rise for dry-type, 65°C rise for liquid-filled.
Sound Level: Varies greatly. Dry-type: 65-80 dBA. Liquid-filled: 60-75 dBA (at 1m). Quieter options available.
Efficiency: Meets or exceeds DOE 2016 (US), EU Tier levels, etc. High-efficiency models (e.g., DOE 2023) exist.
1. Dry-Type Transformer (Cast Resin or VPI - Most Common Indoor):
Height: 1.8m - 2.4m (6 ft - 8 ft)
Width: 1.2m - 1.8m (4 ft - 6 ft)
Depth: 0.9m - 1.5m (3 ft - 5 ft)
Weight: 1800 kg - 3500 kg (4000 lbs - 7700 lbs)
Notes: Enclosed units (NEMA 1 or 3R) will be at the larger/heavier end. Units with forced air (AFA) will be slightly heavier. MV primaries add size/weight vs. LV-only units. Amorphous core units are larger/heavier.
2. Liquid-Filled Transformer (Mineral Oil, Silicone, Ester - Common Outdoor/Padmount):
Height: 1.8m - 2.4m (6 ft - 8 ft) (Tank only - Radiators add significant width/depth)
Width (Tank): 1.2m - 1.8m (4 ft - 6 ft)
Depth (Tank): 1.0m - 1.5m (3.5 ft - 5 ft)
Overall Width/Depth (with Radiators): Can add 0.5m - 1.5m (1.5 ft - 5 ft) to the tank dimensions.
Weight (Dry): 2500 kg - 4000 kg (5500 lbs - 8800 lbs) (Transformer core/coils without fluid)
Weight (Fluid): 1000 L - 2000 L (265 gal - 530 gal) - Mineral Oil ~0.85 kg/L, Ester ~0.92 kg/L.
Total Weight (Shipped/Filled): 3500 kg - 6500 kg (7700 lbs - 14,300 lbs)
Notes: Padmount designs are common. Weight heavily depends on tank design and radiator size. Ester fluids are slightly heavier than mineral oil. Conservator tanks add height.
1. Manufacturer Variation: This is the MOST significant factor. Always get certified drawings and weights from the specific manufacturer for the exact model you are purchasing.
2. Clearance: Dimensions above are for the transformer itself. Significant clearance (often 1m+ / 3ft+) is required around the unit for ventilation (dry-type), safety (liquid-filled), and maintenance access.
3. Foundation/Floor Loading: The weight, especially for liquid-filled units or large dry-types, requires careful structural planning. Ensure floors or pads can support the concentrated load.
4. Transportation & Installation: Weight and size necessitate planning for rigging, cranes, doorways, hallways, and final placement. Liquid-filled units require special handling for the fluid.
5. Accessories: Bushings, tap changers, radiators, enclosures, control cabinets, etc., all add to the overall footprint and weight.
