Movable Heat Exchanger for Transformer Testing Container
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Solution Overview
Problem
Existing AC testing station systems for high-voltage transformers are complex to transport, construct, and dismantle, and are maintenance-intensive due to the use of rotary converters, which also result in high power losses and inefficient cooling within standard container dimensions.
Innovation Solution
A testing container with a right-parallelepiped design that includes movable heat exchangers and power electronics components like inverters and rectifiers, allowing for a modular, space-efficient cooling system that extends beyond container dimensions when in use, reducing the need for rotary converters and enhancing cooling performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If rotary converters are used in AC testing station systems, then high electrical testing power with variable frequency and voltage can be provided, but the system becomes very maintenance-intensive and complex to transport and dismantle
Solution Approach 1:
The patent replaces rotary converters (mechanical system with moving parts) with static power electronics components (inverters and rectifiers). This substitution eliminates mechanical wear and maintenance while providing the same electrical power conversion functions, directly resolving the contradiction between power capability and maintenance intensity.
2Volume of moving object
If heat exchangers are arranged inside the container, then compact transport dimensions are maintained, but cooling performance is insufficient
Solution Approach 1:
The heat exchanger is designed to be movable between an inner position (during transport) and an outer position (during operation). This dynamic reconfiguration allows the system to maintain compact volume during transport while achieving adequate cooling performance during operation, resolving the contradiction between compactness and heat dissipation efficiency.
Solution Approach 2:
The heat exchanger extends from the container interior to the exterior, utilizing the third dimension (depth) to achieve sufficient heat dissipation surface area. By projecting outward, the system gains adequate cooling capacity without increasing the container's footprint, resolving the contradiction between compact transport dimensions and cooling performance.
3Power
If more power electronics components are installed in the container, then inverter power is increased, but heat dissipation becomes more difficult within standard container dimensions
Solution Approach 1:
The movable heat exchanger utilizes the external space beyond the container to provide adequate heat dissipation surface area. By extending outward, it resolves the contradiction between high power installation and heat dissipation capability within standard container dimensions.
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 simplifies transport and construction, reduces maintenance, and increases the installed inverter power within standard container dimensions by providing effective heat dissipation and flexibility in system design, while maintaining compact transport dimensions.
Implementation Method 1
a cooling system including at least one heat exchanger
Data Source
AI summary
A testing container includes a right-parallelepiped-like container, electrical components of a transformer test system which are arranged in the container and which represent a respective heat source during a testing operation, and a cooling system including at least one heat exchanger. In addition, the testing container includes a movement apparatus configured to move the at least one heat exchanger from a transport position within the container into a working position which is located at least partially outside the container. Thus, the at least one heat exchanger is movable by means of the movement apparatus from the transport position within the container into the working position which is located at least partially outside the container.