Two-High Gas-Insulated Switchgear Vertical Stacking
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Solution Overview
Problem
Conventional gas-insulated switchgear designs face challenges in achieving a smaller footprint and easier, less expensive installation due to constraints on the arrangement of feeder buses and structures, particularly in medium-voltage power distribution applications.
Innovation Solution
The design incorporates a housing with vertically stacked gas-insulated circuit interrupters and buses, utilizing sealed connectors and modular compartments to facilitate compact and flexible arrangements, allowing for interconnection of circuit interrupters and buses to optimize space usage and installation efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If conventional GIS units are arranged in a row to provide medium-voltage power distribution, then the system provides reliable power distribution, but the footprint becomes large and installation becomes difficult and expensive
Solution Approach 1:
The patent transitions from a horizontal row arrangement of GIS units to a vertical stacked configuration. Multiple circuit interrupters are arranged in vertical layers within a single housing, utilizing the vertical dimension to reduce the horizontal footprint. This dimensional change allows the system to maintain power distribution capacity while occupying less floor space and simplifying installation.
Solution Approach 2:
The patent combines multiple separate GIS units into a single integrated housing containing vertically stacked circuit interrupters. By merging multiple functional components into one unified structure, the system reduces the overall footprint and simplifies installation while maintaining the required power distribution capabilities.
2Stability of the object's composition
If conventional GIS units are arranged in a row, then the system provides stable power distribution, but the arrangement of feeder buses and structures becomes constrained
Solution Approach 1:
The vertical stacking arrangement provides additional spatial freedom for bus configuration. Feeders can be routed vertically between stacked circuit interrupters, offering more flexible connection options compared to horizontal arrangements. This vertical dimension enables easier adaptation to different feeder configurations and locations while maintaining stable power distribution.
Solution Approach 2:
The modular vertical stack design allows for flexible configuration and reconfiguration of bus connections. The system can be adapted to different power distribution needs by adjusting which circuit interrupters are activated and how feeders are routed between vertical layers, providing dynamic adaptability while maintaining system stability.
3Power
If multiple GIS units are installed to increase capacity, then the ampacity increases, but the footprint and installation complexity increase
Solution Approach 1:
Multiple circuit interrupters are merged into a single housing with vertical stacking, allowing the system to achieve increased ampacity through multiple parallel circuits without proportionally increasing the footprint. The shared housing and vertical arrangement provide space efficiency while maintaining the power capacity of multiple separate units.
Solution Approach 2:
The vertical stacking configuration allows multiple high-capacity circuits to be packed into a compact vertical space. By utilizing the vertical dimension rather than horizontal expansion, the system achieves increased ampacity through multiple circuits while minimizing the horizontal 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 enables a more compact and cost-effective switchgear solution with improved installation ease by allowing for flexible bus arrangements and increased ampacity, addressing the limitations of traditional designs.
Implementation Method 1
certain components that are prone to arc generation are placed in closed structures filled with an insulating high-dielectric gas, such as sulfur hexafluoride (SF6). The insulation properties of the gas allow reduced spacing between components
Data Source
AI summary
An apparatus includes a housing, at least one first gas-insulated circuit interrupter in the housing and at least one second gas-insulated circuit interrupter disposed in the housing above the at least one first gas-insulated circuit interrupter. The at least one first gas-insulated circuit interrupter and the at least one second gas-insulated circuit interrupter may be housed in respective ones of a first gas containment compartment and a second gas containment compartment vertically arranged in the housing. At least one first bus may be coupled to the at least one first gas-insulated circuit interrupter and at least one second bus may be coupled to the at least one second gas-insulated circuit interrupter. The buses may be disposed between the first and second gas-insulated circuit interrupters.