Oil-Immersed Transformer Layout for Container Capacity Limits
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Solution Overview
Problem
The capacity of oil-immersed transformers is limited by the size specifications of 20-foot marine containers, as increasing the transformer capacity leads to an increase in the fuel tank size and heat dissipation area, necessitating additional space that exceeds the container dimensions.
Innovation Solution
The oil conservator is installed above the fuel tank, with its top height exceeding the transformer room's side wall, allowing the fuel tank to occupy less internal space and increasing the available capacity without altering the container's dimensions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If the capacity of the oil-immersed transformer is increased, then the transformer capacity is improved, but the size of the fuel tank and heat dissipation area increase, requiring additional space that exceeds the container dimensions
Solution Approach 1:
The oil conservator is repositioned from a horizontal arrangement within the container to a vertical arrangement extending above the container's side walls. This dimensional change allows the conservator to occupy vertical space rather than horizontal space, effectively increasing the fuel tank capacity without exceeding the container's footprint dimensions.
Solution Approach 2:
The transformer system is segmented into separate functional components: the fuel tank remains within the container while the oil conservator extends externally above the container. This segmentation allows independent optimization of each component's space requirements, enabling the fuel tank to be larger without proportionally increasing the container size.
2Power
If the diameter of the iron core is increased to increase transformer capacity, then the transformer capacity is improved, but the sizes of the oil-immersed transformer and fuel tank increase
Solution Approach 1:
The oil conservator utilizes the vertical dimension by extending above the container's side walls. This allows the fuel tank volume to be increased without proportionally increasing the horizontal footprint, thereby accommodating a larger iron core diameter while maintaining container size constraints.
3Power
If the heat dissipation area is increased to accommodate higher transformer capacity, then the transformer capacity is improved, but the space occupation increases
Solution Approach 1:
The oil conservator with its increased volume provides greater heat dissipation surface area in the vertical dimension. The lateral surface area of the elevated conservator contributes to heat dissipation without increasing the horizontal footprint, allowing higher transformer capacity within the same container footprint.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This configuration provides more space for the fuel tank and transformer, reducing the number of prefabricated stations needed and lowering construction and maintenance costs for photovoltaic systems.
Implementation Method 1
The transformer oil serves as a refrigerating medium and an insulating medium
Implementation Method 2
The transformer oil serves as a refrigerating medium and an insulating medium
Data Source
Figure 1
Figure 2
Figure 3~4
AI summary
This application discloses a prefabricated transformer station, an oil-immersed transformer, and a photovoltaic system, and relates to the field of power distribution technologies. The prefabricated transformer station includes a container housing and the oil-immersed transformer. A transformer room is provided inside the container housing, and a top cover of the transformer room is opened. The oil-immersed transformer is installed in the transformer room, and a height of a top of an oil conservator of the oil-immersed transformer is higher than a height of a side wall of the transformer room. The prefabricated transformer station can provide more space for a fuel tank, so as to improve a capacity of the oil-immersed transformer.