Transformer Feedthrough Bushing Kit External Assembly
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing bushing arrangements for transformer systems require access to the interior for assembly, making the installation process time-consuming and complex due to the need for internal support and securing mechanisms.
Innovation Solution
A kit comprising an elongate electrical conductor and insulating elements with a clamping mechanism that allows preassembly and external installation, featuring a broadening section for stop surfaces and threaded sections for screw nut clamping, enabling secure positioning without internal access, using clamping elements that change positions to secure the arrangement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional bushing arrangements are used that require internal support and securing mechanisms, then the conductor can be adequately insulated and secured, but the installation process becomes time-consuming and requires access to the interior of the transformer housing
Solution Approach 1:
The patent inverts the traditional installation approach by enabling external assembly and installation of the bushing arrangement. Instead of requiring internal access to secure the conductor and insulating elements, the design allows the entire assembly to be pre-configured externally and then installed from the outside through the housing opening, reversing the conventional inside-out installation procedure
Solution Approach 2:
The conductor and insulating elements are pre-assembled and pre-positioned before installation into the transformer housing. The conductor is inserted through the insulating element, the positioning elements are pre-adjusted, and the entire sub-assembly is prepared externally, eliminating the need for time-consuming internal adjustments during installation
2Stability of the object's composition
If traditional bushing arrangements require access to the interior for assembly, then proper positioning and securing can be achieved, but the assembly process becomes complex and time-consuming
Solution Approach 1:
The bushing arrangement is divided into separable components: the conductor, the insulating element, positioning elements, and securing elements. These segmented components can be independently prepared and then easily assembled externally, simplifying the overall assembly process while maintaining proper positioning through the modular design
Solution Approach 2:
Positioning elements serve as intermediaries between the conductor/insulating element assembly and the housing wall. These intermediary components facilitate external assembly by providing reference surfaces and mechanical guidance, eliminating the need for complex internal alignment procedures
3Strength
If the conductor is secured from the inside by screwing it in place, then the conductor is firmly fixed, but access to the interior of the transformer housing is required
Solution Approach 1:
The securing operation is inverted from an internal-to-external process to an external-to-internal process. Instead of screwing the conductor in place from the interior of the housing, the entire bushing assembly is secured from the exterior, eliminating the need for internal access while maintaining equivalent or superior fixing strength through external clamping and positioning mechanisms
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
Facilitates quick and easy assembly of the bushing arrangement from the outside, ensuring secure electrical connections and insulation while maintaining the transformer system's integrity, suitable for high voltage applications.
Implementation Method 1
The at least one clamping element is resiliently arranged on the at least one first insulating element, the spring force being selected such that the clamping element is pressed from the second position to the first position by the spring force
Implementation Method 2
The second section of the electrical conductor has a threaded section for receiving a screw nut for clamping the conductor against an outside of the housing wall
Data Source
Figure 1a~1b
Figure 1c~1d
Figure 2~3
AI summary
The invention relates to a kit (1) for a lead-through arrangement for the electrical connection of a transformer system through an opening (2a) in a housing wall (2) of the transformer system, the kit (1) comprising: an elongate electrical conductor (3), which has, along the length of the conductor (3), at least one first section (3') located inside the housing wall (2) in the mounted state and a second section (3'') located outside the housing wall (2) in the mounted state ; and at least one first insulating element (4) that can be inserted into the opening (2a) in the housing wall (2) and has an opening (4a) for at least partially receiving the conductor (3), the opening (4a) of the insulating element (4) being arranged so as to guide the conductor (3) from an outer face (2'') of the housing wall (2) to an inner face (2') of the housing wall (2), the at least one first insulating element (4) comprising at least one clamping element (6).