Switchgear Cabinet Short-Circuit Device Arrangement
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Solution Overview
Problem
Existing switch cabinets and modular systems require significant space and are difficult to retrofit, with the short-circuit device often being inaccessible, necessitating complex mounting procedures for replacement.
Innovation Solution
The short-circuit device is positioned in a receiving area adjacent to the busbars, aligned parallel to the cuboid surface of the switch cabinet, allowing easy access and connection, and can be located on the top, rear, or side of the cabinet, eliminating the need for elaborate mounting plates.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If the short-circuit device is arranged in the vicinity of the busbars to maximize connected space, then the space utilization is improved, but the short-circuit device becomes inaccessible and requires complex mounting procedures for replacement
Solution Approach 1:
The short-circuit device is arranged in a receiving area that extends in the direction of the nearest cuboid surface of the control cabinet outer contour, utilizing the third dimension (depth) rather than only the horizontal plane. This allows the device to be positioned adjacent to busbars while maintaining accessibility from the front or side, resolving the contradiction between space utilization and accessibility.
2Area of stationary object
If the short-circuit device is arranged behind other installations in the control cabinet, then more space is available for other components, but the device becomes difficult to access and replace
Solution Approach 1:
The short-circuit device is extracted from the conventional position behind other installations and placed in a dedicated receiving area adjacent to the busbars. This receiving area is specifically designed to provide direct access to the device, allowing it to be removed and replaced without dismantling other components, thus resolving the contradiction between space utilization and ease of repair.
3Ease of manufacture
If elaborate mounting plates and bulkheads are used to arrange the short-circuit device, then the device can be properly positioned, but the complexity of installation and replacement increases
Solution Approach 1:
The control cabinet is segmented into functional areas, with a dedicated receiving area for the short-circuit device that is clearly defined by the busbar arrangement. This receiving area serves as a self-contained mounting zone that eliminates the need for elaborate mounting plates and bulkheads, reducing overall system complexity while maintaining proper positioning.
4Area of stationary object
If the busbars are arranged directly adjacent to the housing wall, then maximum connected space is available, but the short-circuit device becomes inaccessible requiring component removal for replacement
Solution Approach 1:
The receiving area for the short-circuit device extends in the direction of the nearest cuboid surface of the control cabinet, utilizing depth dimension to create accessibility. This allows maintenance personnel to access the short-circuit device from the front or side without removing other components, significantly reducing replacement downtime while maintaining efficient space utilization.
Data Source
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AI summary
A control cabinet (1) is described, comprising a frame (2) having several frame profiles (2a..2l) inscribed within a substantially cuboid outer contour of the control cabinet (1). The control cabinet (1) also includes several busbars (3) extending within the frame (2) with a total cross-sectional area (Q) of at least 300 mm² and at least one short-circuiting device (5) for extinguishing an arc. The short-circuiting device (5) is arranged in a receiving area adjacent to the busbars (3), which extends towards the nearest cuboid face (A, D, E, F) of the cuboid outer contour of the control cabinet (1). Furthermore, a modular system is described, comprising a first control cabinet (1) with at least one short-circuiting device (5) arranged in the aforementioned receiving area and a second control cabinet without such a short-circuiting device (5).