High-Voltage Switch Series Metal Enclosures
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Solution Overview
Problem
High-voltage circuit breakers require larger metal enclosures to manage electrical fields, leading to increased costs and the need for different components for various voltage ratings, limiting their scalability and efficiency.
Innovation Solution
The design features multiple metal enclosures with switching assemblies arranged in series, electrically insulated from each other, allowing for reduced electrical fields and enabling the reuse of the same components across different voltage ratings by maintaining each enclosure at different potentials.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If the size of the metal enclosure is increased to manage electrical fields for higher voltages, then the voltage switching capability is improved, but the cost increases and scalability decreases
Solution Approach 1:
The patent divides a single large metal enclosure into multiple smaller metal enclosures arranged in series. Each enclosure handles a portion of the total voltage, allowing the system to achieve high voltage capability without requiring one large enclosure. This segmentation reduces material costs, simplifies manufacturing, and improves scalability since the same enclosure design can be reused across different voltage ratings by simply changing the number of enclosures in series.
2Power
If different circuit breaker components are used for different voltage ratings, then the voltage handling capability is improved, but the manufacturing complexity and inventory requirements increase
Solution Approach 1:
The patent designs the metal enclosure and switching assembly as universal, standardized components that can be used across multiple voltage ratings. The same enclosure design serves different voltage applications by simply varying the number of enclosures connected in series. This universal design approach simplifies manufacturing, reduces inventory complexity, and allows the same component to fulfill multiple voltage rating requirements.
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 approach allows for the efficient switching of high voltages using smaller enclosures, reducing costs and enabling scalability by evenly distributing voltage across multiple switching assemblies, thus addressing the limitations of existing high-voltage switch designs.
Implementation Method 1
the two metal enclosures are electrically insulated from each other
Data Source
Figure 1~4
Figure 5
AI summary
A switch comprises a first switching assembly (la) in a first metal enclosure (2a) and a second switching assembly (lb) in a second metal enclosure (2b). The two metal enclosures (2a, 2b) are electrically insulated from each other as well as from ground. This allows arranging a plurality of metal-enclosed switching assemblies in series while avoiding excessive electrical fields in any of them.