Rotatable Flange High-Voltage Feed-Through for Easier Bushing Mounting
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Solution Overview
Problem
Existing high-voltage bushings, particularly those designed for voltages above 500 kV, are cumbersome to mount due to their length and weight, requiring complex alignment of fasteners and often necessitating the use of cranes, and they lack versatility in adapting to different wall structures and device connection parts.
Innovation Solution
A high-voltage bushing with a mounting flange comprising a retaining part and a rotatable moving part, allowing for easy alignment and attachment to a wall or device connection unit through a rotating ring, which simplifies the mounting process and ensures secure fastening without requiring precise rotational alignment of fasteners.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a high-voltage feed-through is integrated into a housing made of electrically conductive material, then electrical insulation must be ensured between the feed-through and housing, but this requires additional insulation measures that complicate the device structure
Solution Approach 1:
The insulation housing and the insulation layer are merged into a single integrated component. The housing itself is formed as an electrically insulating component that directly provides the insulation function, eliminating the need for separate insulation layers or additional insulation measures between the feed-through and housing.
Solution Approach 2:
The housing serves multiple functions simultaneously: it provides mechanical protection for the feed-through, acts as an electrically insulating component, and serves as a structural element of the device. This multi-functionality reduces the overall number of components needed.
2Reliability
If non-conductive sealing elements are used to achieve electrical insulation, then insulation is provided, but the sealing reliability and electrical insulation reliability are compromised
Solution Approach 1:
The housing is made from a composite material or a material that combines electrical insulation properties with sealing capabilities. This allows the single component to provide both electrical insulation and reliable sealing without requiring separate non-conductive sealing elements.
3Ease of manufacture
If conductive sealing elements are used, then sealing reliability is improved, but electrical insulation between the feed-through and housing is compromised
Solution Approach 1:
The insulation housing and the insulation layer are merged into a single integrated component. The housing itself is formed as an electrically insulating component that directly provides the insulation function, eliminating the need for separate insulation layers or additional insulation measures between the feed-through and housing.
4Reliability
If an insulation layer is applied to the housing, then electrical insulation is achieved, but the manufacturing process becomes more complex and costly
Solution Approach 1:
The insulation housing and the insulation layer are merged into a single integrated component. The housing itself is formed as an electrically insulating component that directly provides the insulation function, eliminating the need for separate insulation layers or additional insulation measures between the feed-through and housing.
Data Source
Figure 1
Figure 2
AI summary
The invention relates to a high-voltage feed-through (1) comprising a securing flange (8) for securing the high-voltage feed-through to a wall (14). The invention is characterised in that the securing flange comprises a retaining part (9) and a moving part (19), wherein the moving part is mounted relative to the retaining part such that it can rotate in relation to a longitudinal direction of the high-voltage feed-through. The invention also relates to an electrical device (25) comprising a fluid-tight housing and the high-voltage feed-through (26) according to the invention, wherein a device connection part (27) is provided for receiving and contacting the high-voltage feed-through. The invention further relates to a method for producing the electrical device.