Diagonal Demounting Module for Switchgear Thermal Compensation
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Solution Overview
Problem
Existing gas-insulated switchgear systems face challenges in efficient dismantling and gas handling due to separate compensation units for each nominal conductor, leading to complex and time-consuming maintenance processes.
Innovation Solution
A transverse dismantling module with three encapsulation sections, each with rigid parts that can move relative to each other, forming a common gas space, allowing for length compensation and simplified gas handling by connecting elements that reduce equipment and maintenance time.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If separate compensation units are used for each nominal conductor, then thermal expansion compensation is achieved, but gas handling complexity and maintenance time increase
Solution Approach 1:
The patent combines three separate compensation units into a single common compensation unit that houses all three nominal conductors. This merging allows for unified gas handling and evacuation, reducing maintenance time and complexity while still providing thermal expansion compensation for each conductor through telescopic connections.
Solution Approach 2:
The common compensation unit serves multiple functions simultaneously: it compensates for thermal expansion of three different nominal conductors, provides a shared gas-tight enclosure, and enables centralized gas handling. This multi-functionality reduces the overall number of components and simplifies maintenance operations.
2Reliability
If separate compensation units are used for each nominal conductor, then individual thermal management is achieved, but device complexity increases
Solution Approach 1:
The patent merges three separate gas-tight enclosures into one common compensation unit, reducing the number of gas handling equipment from three sets to one set. This simplifies the overall device complexity while maintaining the ability to compensate for thermal expansion of each nominal conductor through internal telescopic connections.
3Stability of the object's composition
If rigid connections are used between busbar modules, then structural stability is achieved, but thermal expansion forces create stress on anchoring
Solution Approach 1:
The patent introduces dynamic telescopic connections between the common compensation unit and adjacent busbar modules, replacing rigid fixed connections. These telescopic connections allow the compensation unit to move dynamically with thermal expansion while maintaining gas-tight sealing, thus accommodating thermal forces without transferring excessive stress to the anchoring.
Solution Approach 2:
The common compensation unit acts as an intermediary element between adjacent busbar modules, absorbing and accommodating thermal expansion forces through its telescopic connections. This mediator prevents direct transmission of thermal expansion forces between modules, reducing stress on the anchoring while maintaining overall structural stability.
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 module enables efficient length compensation and simplified gas handling, reducing maintenance time and equipment requirements, while maintaining mechanical stability and safety through a common gas space and telescopic connections.
Implementation Method 1
When the busbar made up of busbar modules and compensation units heats up, the encapsulation sections of the busbar modules expand in the axial direction
Data Source
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AI summary
A transverse disassembly module (100) for a high-voltage switchgear comprises a housing (110). The housing comprises three encapsulation sections (120), each with a rigid first part (130) and a rigid second part (140), which are connected to each other so as to be movable relative to each other in the nominal conductor direction, each encapsulation section (120) being designed to accommodate a nominal conductor element. The housing further comprises three length-variable nominal conductor elements (150), each nominal conductor element (150) being arranged in an encapsulation section (120), the three encapsulation sections (120) being connected to each other via connecting elements (160) to form a common gas space (180).