Adjustable Bushing Support for Aligning Current Transformer Units
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Solution Overview
Problem
Current supports for mounting accessory equipment units, such as current transformer units, on bushing units in high voltage applications are difficult to align and adjust, leading to installation challenges and potential damage during maintenance or replacement, especially when multiple units are involved or bellows couplings are used.
Innovation Solution
A modular support system with aligning means that allows independent adjustment of accessory equipment units in three directions (vertical, horizontal, and oblique) relative to the conductor, using adjustment slots and counter elements, facilitating easy interfacing, fixing, and re-adjustment after initial mounting, and integrating with the bushing to prevent accidental displacement or contact with bellows couplings.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If traditional laminated wood or pressboard supports are used to mount accessory equipment units on bushing units, then the accessory equipment units can be mounted on the insulator parts, but the alignment and adjustment of the units becomes very difficult, especially when multiple units are involved
Solution Approach 1:
The support structure is divided into multiple adjustable support elements (first support element, second support element, etc.) that can independently position each accessory equipment unit. Each support element can be adjusted separately to achieve precise alignment, transforming a complex alignment problem into manageable individual adjustments.
Solution Approach 2:
The support structure incorporates adjustable and movable components that allow dynamic repositioning of accessory equipment units. The support elements can be moved to different positions and angles, enabling alignment adjustments after the basic mounting is completed, thus resolving the static nature of traditional rigid supports.
2Ease of repair
If accessory equipment units are fixed to the base of the bushing, then they are securely mounted, but they cannot be easily re-adjusted or re-positioned during maintenance or replacement
Solution Approach 1:
The support elements are designed with adjustable features that allow them to be re-positioned and re-adjusted during maintenance operations. The adjustable nature of the support structure enables easy removal and re-installation of accessory equipment units while maintaining secure mounting through the adjustable support elements.
Solution Approach 2:
The support structure is designed to be reusable and recoverable. The adjustable support elements can be retained and reused when accessory equipment units are replaced, allowing for quick re-installation of new units without requiring complete removal of the support structure, thus facilitating maintenance while maintaining reliability.
3Productivity
If multiple accessory equipment units are mounted on the bushing, then comprehensive monitoring is achieved, but the installation and handling becomes very difficult due to alignment requirements
Solution Approach 1:
Each accessory equipment unit is supported by individual adjustable support elements, allowing independent positioning and alignment. This segmentation of the support system enables each unit to be installed and aligned separately, making the installation of multiple units manageable despite the comprehensive monitoring capability required.
Solution Approach 2:
The support structure uses standardized adjustable support elements that can accommodate different types of accessory equipment units. This universal approach allows multiple different units to be mounted using the same adjustable support mechanism, simplifying the installation and handling of various monitoring devices.
4Stability of the object's composition
If the support structure is integrated with the base of the bushing, then stable mounting is achieved, but the supports may contact the walls of bellows coupling's bellows causing damage
Solution Approach 1:
The support structure is extracted or separated from the base of the bushing, making it an independent component rather than an integrated part. This separation allows the support elements to be positioned away from the bellows coupling walls, eliminating the harmful contact while maintaining mounting stability through the adjustable support elements.
Solution Approach 2:
The adjustable support elements act as intermediary components between the base and the accessory equipment units. These intermediaries provide stable mounting while maintaining proper spacing and positioning that prevents contact with the bellows coupling walls, thus protecting the system from damage.
Data Source
AI summary
A support for mounting an accessory equipment assembly with one or more accessory equipment units, such as current transformer units, to a base of a bushing includes a conductor surrounded by an insulator part such that each of the accessory equipment units is positioned in a defined way regarding the conductor, wherein said support includes aligning means for aligning each individual accessory equipment unit separately with respect to the conductor. A corresponding accessory equipment module includes an accessory equipment assembly with one or more accessory equipment units, such as current transformer units, and a support for mounting the accessory equipment assembly as well as a bushing unit including a bushing and said kind of accessory equipment module.