Gas-Insulated Switching Device Cable Head Arrangement
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional gas insulated switching apparatuses have an increased unit length and installation area due to the arrangement of two cable heads in the unit direction, which is inefficient in terms of space utilization.
Innovation Solution
The apparatus is redesigned with cable heads arranged between units in the extension direction of the bus-bars, utilizing horizontally disposed bifurcated connection tanks to reduce the unit length and installation area, while maintaining reliability and seismic resistance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If two cable heads are arranged in the unit direction (orthogonal to bus-bar extension direction), then the connection between breaker and power cables is achieved, but the unit length and installation area increase
Solution Approach 1:
The patent changes the arrangement dimension of cable heads from the unit direction (orthogonal to bus-bar extension) to the bus-bar extension direction. This dimensional reorientation allows cable heads to be positioned along the length of the bus-bar rather than extending the unit in the orthogonal direction, thereby reducing the installation area while maintaining all necessary electrical connections.
2Reliability
If cable heads are arranged in the unit direction, then electrical connection is maintained, but the unit length increases
Solution Approach 1:
The patent reorients the cable head arrangement from the unit direction to the bus-bar extension direction, effectively utilizing the existing longitudinal space along the bus-bar. This dimensional change allows electrical connections to be maintained while preventing unnecessary extension of the unit length in the orthogonal direction.
3Adaptability or versatility
If conventional arrangement of cable heads is used, then connection functionality is achieved, but space utilization becomes inefficient
Solution Approach 1:
The patent optimizes space utilization by changing the arrangement dimension of cable heads from the unit direction to the bus-bar extension direction. This reorientation allows the same connection functionality to be achieved while compacting the overall installation footprint, thereby improving space utilization efficiency.
Data Source
Figure 1
Figure 2~3
Figure 4~5
AI summary
A gas insulated switching apparatus includes a transformer line unit 1 and a power transmission and reception line unit 2 adjacent to each other. The power transmission and reception line unit 2 includes two cable heads 18 and 20. The cable heads 18 and 20 are arranged at an interval between units in an extension direction in which a bus-bar extends, and the cable head 20 is disposed in a space behind the transformer line unit 1.