Fitting Collar Notch for Corona Ring Orientation
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Solution Overview
Problem
In high-voltage power transmission systems, improper installation of corona rings due to their ability to be installed upside-down or in incorrect orientations by inexperienced technicians limits their effectiveness, leading to electrical overstress and insulative material deterioration.
Innovation Solution
A fitting with a collar and neck configuration, where the collar is designed to couple with a corona ring and includes a notch and grip elements, ensuring correct orientation by preventing securement when improperly aligned, thus ensuring the corona ring is installed correctly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the corona ring is designed to be installable in multiple orientations, then the ease of installation is improved, but the reliability of correct installation deteriorates
Solution Approach 1:
The fitting incorporates asymmetric features including a collar with an oblate spheroid shape and a notch positioned at a specific location. The corona ring assembly includes a clamp seat with a receiving channel and grip elements that correspond to the asymmetric features of the fitting. This asymmetric design creates a unique geometric relationship that only permits correct orientation during installation, preventing improper installation while maintaining ease of installation through intuitive alignment.
2Reliability
If the fitting includes asymmetric features like a collar with a notch, then the reliability of correct orientation is improved, but the device complexity increases
Solution Approach 1:
The fitting is segmented into distinct functional components: a collar portion with an oblate spheroid shape, a neck portion, and a fitting body with a socket eye. The collar itself is segmented with a notch feature that creates the asymmetric orientation constraint. This segmentation allows each component to perform its specific function while the overall assembly maintains relatively simple construction and manufacturing processes.
Data Source
AI summary
The present disclosure provides a fitting for a power transmission system. The fitting may include a first end configured to couple to an end of an insulator, a second end configured to couple to a power line, a collar located between the first end and the second end, and a neck located between the collar and the first end. An outer diameter of the collar may be greater than an outer diameter of the neck. A power transmission system with a fitting and corona ring assembly is also provided.