Modular Gas-Insulated Switchgear Housing with Linear Busbar Openings
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Solution Overview
Problem
Current gas-insulated high-voltage switchgear designs face challenges in achieving compactness and high power density, particularly in urban areas, while also requiring easier maintenance and reduced material usage.
Innovation Solution
A housing design for switchgear modules that incorporates a common gas space for three-phase busbar conductor sections with strategically arranged openings, allowing for a compact, modular, and versatile layout that combines the benefits of single-phase and three-phase encapsulation, including simplified gas monitoring and reduced material usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If three-phase encapsulated routing is used, then power density increases, but gas volume and material requirements increase
Solution Approach 1:
The housing is divided into three separate busbar openings (first, second, and third busbar openings) that are arranged along a straight line, with each opening accommodating a busbar conductor section. This segmentation allows the common gas space to be efficiently utilized while reducing the overall gas volume required compared to a fully enclosed three-phase routing.
Solution Approach 2:
The busbar openings are arranged in a linear configuration along a straight line rather than in a three-dimensional clustered arrangement. This one-dimensional linear arrangement reduces the volumetric requirements of the common gas space while maintaining three-phase encapsulation, thereby increasing power density without proportionally increasing gas volume.
2Power
If three-phase encapsulated routing is used, then power density increases, but housing material usage increases
Solution Approach 1:
The housing combines three separate busbar openings into a single common gas space, merging what would traditionally require three separate enclosures. This integration reduces the total housing material required while maintaining the three-phase encapsulation necessary for high power density.
Solution Approach 2:
The common gas space serves multiple functions simultaneously: it provides insulation for all three phases, accommodates all busbar conductor sections, and maintains a compact linear footprint. This multi-functionality reduces material usage compared to separate enclosures for each phase.
3Quantity of substance
If single-phase encapsulation is used, then gas volume is reduced, but power density decreases
Solution Approach 1:
The housing is segmented into three distinct busbar openings arranged linearly, allowing each phase to be separately accessed and connected while sharing a common gas space. This segmentation enables efficient gas utilization and maintains high power density without requiring excessive gas volume.
Solution Approach 2:
The linear arrangement of busbar openings along a straight line transforms the spatial configuration from a volumetric three-phase enclosure to a linear multi-phase structure. This dimensional change reduces gas volume requirements while maintaining the power density benefits of three-phase encapsulation.
4Adaptability or versatility
If modular design is implemented, then adaptability increases, but device complexity increases
Solution Approach 1:
The housing with its common gas space and linear busbar opening arrangement serves multiple functions: it accommodates three-phase busbars, provides insulation, enables modular assembly, and allows flexible configuration options. This universality increases adaptability without proportionally increasing complexity.
Solution Approach 2:
The modular housing can be divided into separate components (housing body, busbar openings, connection elements) that can be manufactured independently and assembled together. This segmentation enables flexible configuration and adaptation to different applications while keeping individual component complexity manageable.
Data Source
Figure 1a
Figure 1b~2b
Figure 3a~5
AI summary
The invention relates to a housing (1) for a switchgear unit module of a switchgear unit, which forms a common gas chamber (3) suitable for receiving an insulating gas and three gas-insulated busbar nominal conductors of the switchgear unit module. The housing (1) comprises: three first busbar openings (14, 24, 34), wherein the three first busbar openings (14, 24, 34) are arranged, in terms of the area, in a first opening plane E1 and along a first straight line (4); three second busbar openings (16, 26, 36), wherein the three second busbar openings (16, 26, 36) are arranged on a side of the housing opposite of the three first busbar openings (14, 24, 34); and three discharge conductor openings (56, 66, 76), wherein the three discharge conductor openings (56, 66, 76) are disposed, in terms of the area, in a second opening plane E2 and along a second straight line (6).