Vulcanized Stress Cone and Field Grading Adapter
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The existing high voltage cable termination systems face issues with contamination and voids at the interfaces between the stress cone and field grading adapter, leading to reduced performance and increased risk of electrical breakdown.
Innovation Solution
The stress cone and field grading adapter are chemically bonded through vulcanization, eliminating the physical interface and potential contaminants, and the rubber part extends along the field grading adapter to prevent triple points, enhancing operational robustness and installation safety.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the stress cone and field grading adapter are installed as separate parts, then the installation flexibility is improved, but the risk of contamination and voids at the interface increases
Solution Approach 1:
The stress cone and field grading adapter are merged into a single integrated component with a unified body structure. This eliminates the physical interface between separate parts, thereby removing the risk of contamination and voids that would occur during assembly of multiple components.
2Adaptability or versatility
If the stress cone and field grading adapter are installed as separate parts, then the device adaptability is improved, but the number of installation steps increases
Solution Approach 1:
By combining the stress cone and field grading adapter into one integrated device, the number of installation steps is reduced from two separate installations to a single installation operation, thereby saving time and reducing installation complexity.
3Ease of manufacture
If traditional physical interface connection is used, then the manufacturing simplicity is maintained, but the electrical breakdown risk increases
Solution Approach 1:
The integrated design eliminates the physical interface between separate components, removing the harmful effect of contamination and voids that could lead to electrical breakdown. The unified body structure ensures continuous material integrity without weak points at interfaces.
Solution Approach 2:
The device utilizes composite material construction with different rubber materials (semiconducting rubber and insulating rubber) integrated into a single body, providing both electrical field control functionality and structural integrity without interface-related breakdown risks.
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
This solution increases the operational robustness and safety of high voltage cable terminations by removing contamination risks, voids, and reducing electrical breakdown, while facilitating faster and safer installation by integrating the stress cone and field grading adapter into a single, unified device.
Implementation Method 1
The stress cone comprises a deflector and a rubber part vulcanized together
Data Source
Figure 1
Figure 2~3
Figure 4~5
AI summary
An electric field control device for a high voltage cable includes a stress cone and a field grading adapter, wherein the stress cone and the field grading adapter are chemically bonded by vulcanization. An electric installation includes a power cable and the electric field control device. A method for producing the electric field control device is also disclosed.