Modular Pressure Relief Duct for Gas-Insulated Switchgear
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Solution Overview
Problem
Existing gas-insulated medium-voltage switchgear systems face challenges in installation, particularly in confined spaces due to difficult access at connection points, leading to ergonomic and logistical issues during assembly and maintenance.
Innovation Solution
A modular pressure relief duct system with screwless connections that can be easily assembled from the front side, featuring self-centering mechanisms and overlapping designs for stability, allowing for installation in tight spaces without the need for rear access and reducing assembly complexity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If conventional screw-based assembly is used for pressure relief duct connection, then connection stability is achieved, but installation becomes impossible in tight spaces and ergonomics deteriorate
Solution Approach 1:
The pressure relief duct is divided into multiple modular sections that can be independently assembled and connected. Each module features standardized connection interfaces that simplify assembly in confined spaces while maintaining structural integrity and stability through the modular architecture.
2Adaptability or versatility
If modular pressure relief duct design is implemented, then installation ease and adaptability improve, but connection stability may be compromised
Solution Approach 1:
Multiple modular sections of the pressure relief duct are combined through standardized connection interfaces that integrate seamlessly. The design merges the advantages of modularity (adaptability) with robust connection mechanisms (stability), ensuring that assembled modules maintain structural integrity comparable to monolithic designs while benefiting from installation flexibility.
3Productivity
If screwless plug-in connection is used, then assembly ergonomics and speed improve, but connection reliability may be reduced
Solution Approach 1:
The conventional screw-based mechanical fastening system is replaced with a screwless plug-in connection mechanism. This substitution maintains connection reliability through alternative mechanical engagement features (such as interference fits, snap connections, or cam-locked interfaces) while dramatically improving assembly speed and ergonomics by eliminating the need for tools and complex tightening procedures.
Data Source
Figure 1
Figure 2A~2C
Figure 3A~3B
AI summary
The electrical system (1) according to the invention, which is in particular designed as a gas-insulated medium-voltage switchgear, comprises at least one encapsulated functional module (10-1, 10-2) with a substantially cuboid housing (11-1, 11-2) and a pressure relief channel (20) extending parallel to a front side (4) of the electrical system (1), which is mounted on the housing (11-1, 11-2) in the region of a top side (5) of the housing (11-1, 11-2). The pressure relief channel (20) is modular in design, with each functional module (10-1, 10-2) being uniquely assigned a corresponding module (21-1, 21-2) of the pressure relief channel (20).Furthermore, each module (21-1, 21-2) of the pressure relief duct (20) is inserted into the housing (11-1, 11-2) of the respective function module (10-1, 10-2) in a rear area facing away from the front (4), forming a first screwless connection (22). This first screwless plug connection (22) between the housing (11-1, 11-2) of the function module (10-1, 10-2) and the associated module (21-1, 21-2) of the pressure relief duct (20) enables simple and ergonomic mounting of the pressure relief duct (20) from the front, i.e., from a front side (4) of the electrical system (1).Furthermore, the modular design of the pressure relief channel (20) ensures easy adaptation to the number of functional modules (10-1, 10-2) belonging to the electrical system (1), thereby significantly simplifying or even enabling the processes at the installation site.