Electrical Bushing Anti-Rotation Flange for Fast Transformer Mounting
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Solution Overview
Problem
Existing high-voltage electrical bushings suffer from unintentional rotation after installation, which can damage measurement devices and compromise insulation performance, and existing solutions like adhesives are time-consuming and difficult to disassemble.
Innovation Solution
An electrical bushing design featuring a mounting flange with a locking element that engages with a recess on a circumferential protrusion to prevent rotation, allowing for secure positioning and efficient installation without adhesives.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If adhesive is used to prevent rotation of the body component, then rotational stability is improved, but installation time increases and disassembly becomes difficult
Solution Approach 1:
The patent replaces the chemical bonding mechanism (adhesive) with a mechanical locking mechanism consisting of a locking element that engages with a recess in the circumferential protrusion. This mechanical system provides immediate rotational stability upon installation without requiring curing time, and allows for straightforward disassembly by simply removing the locking element.
2Stability of the object's composition
If adhesive is used to prevent rotation of the body component, then rotational stability is improved, but ease of disassembly deteriorates
Solution Approach 1:
The mechanical locking element can be easily inserted and removed from the recess in the circumferential protrusion, providing a simple disassembly process. Unlike adhesive that requires cutting or prying, the locking element can be directly extracted to allow removal of the body component for maintenance or replacement.
3Ease of operation
If the mounting flange allows rotation during installation, then ease of positioning is improved, but reliability deteriorates due to potential unintentional rotation after installation
Solution Approach 1:
The locking element is designed to be inserted after the body component is positioned in the correct orientation within the mounting flange. The locking element then engages with the recess in the circumferential protrusion to prevent any subsequent rotation. This preliminary positioning followed by locking ensures both ease of installation and long-term reliability.
Data Source
AI summary
An electrical bushing having an anti-rotation mounting flange for preventing rotation of a body element of the electrical bushing is provided. The electrical bushing includes a mounting flange, at least one locking element and a body element having a circumferential protrusion. At least one first recess is formed in the circumferential protrusion, and the at least one locking element is configured to engage with the at least one first recess and with the mounting flange for restricting relative rotation of the body element relative to the mounting flange about a longitudinal axis R. A further aspect provides an electrical transformer including at least one electrical bushing according to the above. A yet further aspect provides a method for mounting the electrical bushing according to the above.