Elastic Field Control Element for High-Voltage Cable Termination
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Solution Overview
Problem
Existing cable termination technologies for high-voltage power transmission cables are complex, time-consuming to assemble, and require expensive maintenance due to the need for precise fittings and fluid fillings, limiting their versatility and ease of use.
Innovation Solution
A field control element comprising a main body, deflector, and adapter plate with elastic and conductive components that can accommodate cables of varying diameters, allowing for simple assembly and use, with a high dielectric strength interface and flexible design to reduce mechanical stress and electrical stress.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If complex cable termination designs with multiple components and fluid fillings are used, then electrical insulation and field control are improved, but device complexity and maintenance requirements increase
Solution Approach 1:
The cable termination is divided into modular components: a field control element with electrode and insulating body that can be separately assembled. This segmentation allows each component to be optimized independently while simplifying overall assembly and maintenance procedures.
Solution Approach 2:
The patent eliminates fluid fillings and complex sealing systems by extracting these functions and replacing them with a solid insulating body and field control element. This removal of fluid components directly reduces device complexity and maintenance requirements while maintaining electrical insulation performance.
2Manufacturing precision
If precise fittings and complex assembly procedures are used, then manufacturing precision is improved, but assembly time and ease of operation worsen
Solution Approach 1:
The field control element is pre-assembled as a complete unit with the electrode and insulating body already positioned and secured. This preliminary assembly ensures manufacturing precision is achieved during production rather than during field installation, making the actual cable termination assembly simple and quick.
Solution Approach 2:
The electrode, insulating body, and field control functions are merged into a single integrated field control element that is slid onto the cable as one component. This merging eliminates the need for multiple separate fittings and complex assembly procedures while maintaining the required manufacturing precision.
3Adaptability or versatility
If adapters and complex designs are used to accommodate different cable diameters, then adaptability is improved, but device complexity increases
Solution Approach 1:
The field control element is designed as a universal component that can accommodate cables of different diameters through its elastic insulating body. The same basic design works across multiple cable sizes without requiring different adapters or complex configurations, achieving adaptability while maintaining simplicity.
Solution Approach 2:
The insulating body is made from elastic material that can flex and deform to accommodate cables of varying diameters. This flexibility allows a single field control element design to adapt to different cable sizes without requiring multiple specialized components or complex adjustment mechanisms.
4Ease of operation
If elastic materials are used throughout the connector, then ease of operation is improved, but manufacturing precision and structural stability worsen
Solution Approach 1:
Different parts of the connector have different material properties optimized for their specific functions: the insulating body uses elastic material for ease of installation, while the electrode and connection points use rigid materials for manufacturing precision and structural stability. This local differentiation of material quality resolves the contradiction between flexibility and precision.
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 solution enables easy assembly and use across different voltage levels and cable diameters, reducing assembly time and maintenance costs while maintaining high dielectric strength and preventing voltage breakdowns.
Implementation Method 1
at least one elastic electrode, wherein the conductive part of the adapter plate and/or the electrode is/are designed such that it can radially enclose the stripped part of the cable within the field control element over its entire length
Implementation Method 2
a deflector, wherein the field control element has an opening in which an energy transmission cable is received
Data Source
Figure 1A~1B
Figure 2
Figure 3
AI summary
The invention relates to a field control element (100) for end closures or sleeves of cables for transmitting energy. The field control element comprises a main body (3), a deflector (5), at least one elastic electrode (6) and an adapter plate (7). The control element has an opening in which a cable (1, 2) for transmitting energy is accommodated. In this context, the insulation is removed from one side of the cable facing the electrode (6). A conductive part of the adapter plate (9) and/or the electrode (6) are/is embodied in such a way that they/it can radially enclose, over its complete length within the field control element, that part of the cable from which insulation is removed.