Gas-Insulated Switching Apparatus Compact Bus Arrangement

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Solution Overview

Problem

Existing gas-insulated switching apparatuses face challenges in minimizing the arrangement space, with enlarged spaces for gas circuit breakers and circuit wirings, leading to inefficiencies in compactness.

Innovation Solution

The proposed solution involves a gas-insulated switching apparatus with gas circuit breakers arranged in parallel on a common horizontal plane, connected via vertical tubes to circuit wiring modules, where the circuit wirings are configured as gas-insulated buses extending orthogonally, positioned at the apexes of a right-angled isosceles triangle, reducing the vertical dimension and allowing for a more compact arrangement.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Length of stationary object

If gas circuit breakers are arranged in parallel on a common horizontal plane, then the arrangement space in the axial length direction is reduced, but the arrangement space in the vertical direction increases

Engineering Contradiction:
Improvearrangement space in axial length directionVSAvoidarrangement space in vertical direction
Core Design Contradiction:
Length of stationary objectVSLength of moving object

Solution Approach 1:

The patent transitions from a one-dimensional linear arrangement of circuit wirings to a two-dimensional planar arrangement at an angle (specifically 45 degrees or orthogonal) to the gas circuit breakers. This dimensional change allows the circuit wirings to occupy space in both the horizontal and vertical directions simultaneously, optimizing the overall space utilization and reducing the maximum extent in any single direction.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

2Device complexity

If first circuit wirings are arranged in parallel orthogonal to gas circuit breakers, then electrical connection is simplified, but the arrangement space is enlarged

Engineering Contradiction:
Improveelectrical connection complexityVSAvoidarrangement space
Core Design Contradiction:
Device complexityVSArea of stationary object

Solution Approach 1:

The patent introduces asymmetric angular arrangements (45 degrees or orthogonal angles) between the circuit wirings and gas circuit breakers, replacing simple parallel alignment. This asymmetric positioning reduces the bounding box area required for the arrangement while maintaining electrical connection functionality, as the angled configuration allows for more compact packing of components.

Inventive Principle:
Principle #4Asymmetry

3Ease of operation

If gas circuit breakers are shifted by module dimension M, then individual breaker access is improved, but the overall apparatus size increases

Engineering Contradiction:
Improveindividual breaker accessVSAvoidoverall apparatus size
Core Design Contradiction:
Ease of operationVSVolume of stationary object

Solution Approach 1:

The patent merges the arrangement of multiple gas circuit breakers and circuit wirings into a compact modular configuration where components are positioned at optimized angles relative to each other. This merging approach allows for shared space and reduced overall dimensions compared to separated or widely spaced arrangements, while still providing access to individual breakers through the optimized geometric configuration.

Inventive Principle:
Principle #5Merging (Combining)

Data Source

PatentUS8089020B2Gas-insulated switching apparatus
Publication Date: 2012.01.03 MITSUBISHI ELECTRIC CORP
  • US8089020B2 patent drawing
  • US8089020B2 patent drawing
  • US8089020B2 patent drawing

AI summary

[Object] A compact gas-insulated switching apparatus in which the space for arranging a gas breaker module may be reduced, and the space for arranging a circuit wiring may be reduced in the vertical direction is proposed.[Means for Resolution] Gas circuit breakers for respective phases of a breaker module have the reference axial lengths having the same length between the first and second vertical planes and arranged so as to extend in the first direction, first circuit wirings for the respective phases of a first circuit wiring module are configured with gas-insulated buses respectively and are extended in parallel to each other along the second direction which is orthogonal to the first direction, the first circuit wirings for the respective phases are positioned at the respective apexes of a right angled isosceles triangle, the first circuit wirings respectively for the phase A and the phase B are positioned at both ends of the short side of the right angled isosceles triangle and are arranged on a third vertical plane positioned between the first vertical plane and the second vertical plane so as to extend in parallel thereto.