High-Voltage Feedthrough Electrode Layout for Compact Field Control
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
High-voltage feedthroughs require long insulating bodies to manage high voltages, leading to increased material costs, mechanical stress, and weight, limiting their cost-effectiveness and applicability above 1000 kV.
Innovation Solution
A conductive, low-resistance electrode element is connected to the control insert of the insulating body, allowing potential shifting and field equalization, which reduces the length of the control insert area and enables a cylindrical field distribution, thereby minimizing mechanical stress and weight while maintaining effective field control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the insulating body is lengthened to manage high voltages, then the voltage insulation capability is improved, but the material costs, weight, and mechanical stress increase
Solution Approach 1:
The patent changes the electrical parameters by introducing electrode elements that modify the electric field distribution. These electrodes create additional field control points that allow for effective voltage management with a shorter insulating body, thereby reducing weight while maintaining insulation capability.
Solution Approach 2:
The electrode elements act as intermediaries between the high-voltage conductor and the insulating body. They mediate the electric field distribution, enabling more efficient field control that reduces the required length and weight of the insulating body while maintaining high voltage insulation capability.
2Reliability
If the insulating body is lengthened to manage high voltages, then the voltage insulation capability is improved, but the material costs increase
Solution Approach 1:
By introducing electrode elements that actively control electric field parameters, the patent reduces the quantity of insulating material required. The electrodes create favorable field distribution that allows cost-effective design with less expensive, shorter insulating bodies instead of requiring long, expensive insulating structures.
Solution Approach 2:
The electrode elements serve as intermediaries that enable more efficient use of insulating materials. They mediate the electric field to reduce the required amount of insulating material, thereby reducing material costs while maintaining the necessary voltage insulation capability.
3Reliability
If the insulating body is lengthened to manage high voltages, then the voltage insulation capability is improved, but the mechanical stress and seismic adaptations increase
Solution Approach 1:
The patent changes the mechanical parameters by reducing the length of the insulating body through the introduction of electrode elements. This shorter design inherently reduces mechanical stress and eliminates the need for costly seismic adaptations, while the electrodes maintain the necessary electric field control for high voltage insulation.
Solution Approach 2:
The electrode elements act as mechanical intermediaries that enable field control without requiring long insulating structures. They mediate between the electrical requirements and mechanical constraints, allowing for a shorter, more mechanically robust design that better withstands stress and seismic forces.
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 configuration allows for a more compact and lightweight high-voltage feedthrough, enabling applications above 1000 kV with reduced material costs and mechanical adjustments, while maintaining effective electrical field management.
Implementation Method 1
The field control can be capacitive and/or resistive, for example
Implementation Method 2
The field control can be capacitive and/or resistive, for example
Implementation Method 3
Within the electrode element and outside the control insert area, a largely cylindrical electric field is created towards the inner conductor
Data Source
Figure 1~2
Figure 3
AI summary
The invention relates to a high-voltage feedthrough (1) having an internal conductor (2) which extends in a longitudinal direction between a first and a second high-voltage terminal (3, 4) of the high-voltage feedthrough, and having an insulating body (5) which at least partially encloses the internal conductor, wherein the insulating body comprises field-controlling control inlays (27a-e) in a control inlay region (26) which are separated from one another by insulating layers. The invention is distinguished by at least one electrode element (12a) which is electrically connected to at least one of the control inlays and is led axially out of the control inlay region.