Dimensions of Oil-Immersed Transformers

　　The dimensions of oil-immersed transformers vary depending on their rated capacity, voltage level, cooling method, and the manufacturer's design standards. Below is a general overview of the typical dimensions and influencing factors based on publicly available information:

　　I. Relationship Between Rated Capacity and Dimensions

　　Small-Capacity Transformers (e.g., 30kVA to 630kVA):

　　Length: Typically ranges from 980mm to 1675mm.

　　Width: Ranges from 660mm to 1095mm.

　　Height: Generally ranges from 1020mm to 1515mm.Medium-Capacity Transformers (e.g., 800kVA to 1600kVA):

　　Length: Can reach up to 1755mm to 2450mm.

　　Width: Ranges from 1145mm to 1295mm.

　　Height: Generally ranges from 1560mm to 1650mm.Large-Capacity Transformers (e.g., 2000kVA and above):

　　Length: Can exceed 2500mm, even reaching 3900mm (e.g., for a 6300kVA transformer).

　　Width: Also increases accordingly, such as up to 1880mm for a 2500kVA transformer.

　　Height: Similarly increases, such as up to 2170mm for a 3150kVA transformer.II. Impact of Voltage Level

　　10kV Voltage Level Transformers: Have relatively smaller dimensions and are suitable for distribution systems.

　　35kV and Above Voltage Level Transformers: Require higher insulation and cooling performance, resulting in significantly larger dimensions.III. Cooling Method

　　Oil-Immersed Naturally Cooled Transformers: Have moderate dimensions and are suitable for general environments.

　　Oil-Immersed Forced-Air Cooled Transformers: May be equipped with fans or other cooling devices, resulting in slightly larger dimensions to provide better cooling performance.IV. Other Factors

　　Manufacturer's Design Standards: Different manufacturers may adopt different design philosophies and manufacturing processes, leading to variations in dimensions for transformers with the same capacity and voltage level.

　　Installation Requirements: The dimensions of transformers must also consider installation space and transportation limitations. For example, the dimensions of foundation channel steel are typically 200mm to 400mm longer and 150mm to 300mm wider than the transformer's outline.V. Typical Dimension Examples

　　Below are some examples of typical dimensions for oil-immersed transformers (units: mm):

Note: The above dimensions are for reference only. Actual dimensions may vary depending on the manufacturer, design standards, and specific requirements. When selecting an oil-immersed transformer, it is recommended to communicate in detail with the manufacturer or supplier based on actual needs and installation conditions to obtain accurate dimension information.