Insulating Body with Volumetric Field Control Elements
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Solution Overview
Problem
Existing insulating bodies for busbar arrangements face challenges in easy production and effective field deflection, with known solutions either complex or inadequate in preventing flashovers and partial discharges.
Innovation Solution
The insulating body features a volume body as the outer field control element, materially connected to the insulator, providing improved field equalization and sealing capabilities, with a hollow-cylindrical inner contour and conductive lacquer layers for inner field control, allowing for easy production and enhanced field deflection properties.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the outer field control element is designed as a surface layer (conductive lacquer), then the production process is simple, but the field equalization properties are insufficient
Solution Approach 1:
The patent changes the physical state parameter of the outer field control element from a surface layer (2D) to a volume body (3D). This parameter change transforms the element from a thin conductive lacquer layer applied on the insulator surface to a three-dimensional solid structure embedded within the insulator, thereby improving field equalization while maintaining production simplicity through integrated manufacturing
2Reliability
If the outer field control element is designed as a volume body embedded in the insulator, then field equalization is improved, but the production complexity increases
Solution Approach 1:
The patent merges the outer field control element with the insulator body into a single integrated component. The volume body is produced together with the insulator in one manufacturing process, eliminating the need for separate production and assembly steps. This combining approach reduces production complexity while maintaining the field equalization benefits of the volume structure
3Object-affected harmful factors
If additional sealing measures are added to seal the busbar arrangement, then sealing performance is improved, but the device complexity and cost increase
Solution Approach 1:
The volume body performs multiple functions simultaneously: it acts as the outer field control element for field equalization, serves as a sealing element that seals the busbar arrangement from the outside environment, and provides structural integration with the insulator. This multi-functionality eliminates the need for separate sealing components, reducing device complexity and cost while maintaining effective sealing performance
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 ensures reliable prevention of flashovers and partial discharges by effectively deflecting electrical potential to ground, while being easy to produce and integrate, with the volume body providing better field equalization and sealing without additional sealing measures.
Implementation Method 1
An inner field control element in the form of a conductive lacquer layer is in an electrically conductive connection with the centering means, so that the inner field control element is at the potential of the busbar sections
Implementation Method 2
the volume of the solid provides a better field equalization
Data Source
AI summary
In order to develop an insulating body (1, 1', 20, 20' ) for a busbar arrangement with a hollow-cylindrical inner contour (2, 23) for accommodating potential-carrying busbar sections, a centring means (3, 3', 22) for centring and making contact with the busbar sections, an inner field control element (4, 21), which is electrically conductively connected to the centring means (3, 3', 22), and an outer field control element (6, 6', 25, 25' ), which is at ground potential, which insulating body is firstly simple to produce and secondly has improved properties in respect of the field termination, it is proposed that the outer field control element (6, 6', 25, 25' ) is in the form of a volumetric body which is cohesively connected to the insulating body (1, 1', 20, 20' ).