Pre-Assembled Grounding Structure for Stable Contact in GIL
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Solution Overview
Problem
Conventional grounding structures in gas-insulated equipment, such as gas-insulated transmission lines, suffer from unstable contact force due to the influence of processing accuracy and are prone to twisting and inclining, with components like grounding springs potentially falling during assembly.
Innovation Solution
A pre-assembled grounding structure comprising a grounding guide and support with a cavity for a grounding contact, moveable via a grounding spring, ensuring reliable contact and reducing twisting by synchronizing rotation with the grounding guide.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If grounding contacts and grounding springs are used separately with a floating portion, then the grounding structure can be assembled, but the contact force becomes unstable due to processing accuracy variations
Solution Approach 1:
The patent merges the grounding contact and grounding spring into a single integrated component. The grounding contact is designed with an embedded spring mechanism, eliminating the need for separate grounding springs and floating portions. This integration ensures that the contact force is inherently stable and not affected by variations in the processing accuracy of the insulator and enclosure, as the spring is pre-loaded within the contact itself.
2Ease of operation
If grounding contacts and grounding springs are not pre-assembled, then assembly flexibility is maintained, but components may fall during assembly
Solution Approach 1:
The patent applies preliminary action by pre-assembling the grounding contact with the grounding spring into a single integrated component before the final assembly process. This pre-integration ensures that the spring and contact are securely connected, eliminating the risk of components falling during assembly. The integrated design allows for easy installation as a single piece while maintaining operational flexibility.
3Reliability
If grounding springs are connected to both grounding contacts and insulator, then grounding function is achieved, but twisting and inclining occur during sliding
Solution Approach 1:
The patent merges the grounding spring and grounding contact into a single integrated component, which eliminates the twisting and inclining issue. The spring is embedded within the contact structure, ensuring that both components move together as a unified unit during sliding. This integration maintains the grounding function while preventing misalignment and orientation instability that would occur with separate components.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The pre-assembled structure ensures stable and reliable grounding by minimizing the impact of dimensional inaccuracies and preventing twisting, enhancing assembly efficiency and safety.
Implementation Method 1
The grounding contact is moveable along the wall of the cavity by a grounding spring accommodated in the cavity to realize the adaptive adjustment of the installation position
Implementation Method 2
The grounding guide is moveable via a supporting spring engaged with inner surface of the contacting end and arranged in series with the grounding spring
Data Source
AI summary
The present disclosure provides a grounding structure, a method for assembling the same and a gas-insulated transmission line. The grounding structure includes a grounding guide defining a guiding hole and a grounding support fixed on the grounding guide and defining a cavity for accommodating a grounding contact. The grounding contact is arranged in the cavity and protrudes through the guiding hole on the grounding guide. The grounding contact is moveable along the wall of the cavity by a grounding spring accommodated in the cavity to realize the adaptive adjustment of the installation position. The grounding structure can be pre-assembled in an accurate and efficient way to avoid the components therein damaging, thereby improving the reliability and safety of the grounding structure and the gas-insulated equipment in which the grounding structure is used.