Movable Neutral Bus Connection Apparatus for Switchgear
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Solution Overview
Problem
Existing neutral terminal blocks in electrical switchgear enclosures face difficulties in accommodating neutral wires of varying sizes and configurations, leading to challenges in connecting neutral conductors to circuit interrupters without interference.
Innovation Solution
A movable and removable connection apparatus that can be installed on an elongated neutral bus, featuring a support with a compression element and engagement elements, allowing for flexible positioning and secure electrical connection of neutral conductors along the bus while avoiding interference with circuit interrupters.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a neutral terminal block is used to connect neutral wires, then electrical connections can be made, but difficulty is encountered in stretching neutral wires to small terminal blocks and interference occurs with circuit interrupters
Solution Approach 1:
The invention divides the connection system into separate components: a neutral bus bar that can be positioned independently and connection apparatus that can be attached at various locations along the bus bar. This segmentation allows the neutral connections to be made away from circuit interrupters, eliminating interference while maintaining ease of connection.
Solution Approach 2:
The invention introduces spatial dimensionality by using an elongated neutral bus bar that extends across the enclosure, allowing connections to be made at multiple positions along its length. This enables wire connections to be routed to appropriate locations without interfering with circuit interrupters, solving the spatial conflict between connection points and interrupter placement.
2Stability of the object's composition
If a fixed neutral terminal block is used, then connections are stable, but the connections cannot be repositioned to accommodate various enclosure sizes and configurations
Solution Approach 1:
The invention transforms the fixed terminal block into a dynamic system where the neutral bus bar can be positioned at different locations and the connection apparatus can be attached at various points along its length. This dynamic configuration allows the same connection system to adapt to different enclosure sizes and layouts while maintaining stable electrical connections through secure attachment mechanisms.
Solution Approach 2:
The elongated neutral bus bar serves multiple functions: it provides electrical connection points at various locations, accommodates different wire routing paths, and can be positioned to avoid interference with circuit interrupters. This multi-functionality allows a single bus bar design to work across various enclosure configurations, enhancing versatility while maintaining connection stability.
3Ease of manufacture
If neutral connections are made at fixed locations, then installation is simple, but changing connection locations requires modifying the entire terminal block structure
Solution Approach 1:
The invention segments the connection system into a neutral bus bar and separate connection apparatus, allowing the connection points to be independently repositioned along the bus bar without affecting the entire structure. This segmentation enables simple reconfiguration by detaching and reattaching connection apparatus at new locations, maintaining installation simplicity while enabling easy repositioning for repairs or modifications.
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 easy installation, repositioning, and removal of the connection apparatus on the neutral bus, ensuring reliable electrical connections and reducing interference with other components within the electrical enclosure.
Implementation Method 1
The compression element is structured to apply a compressive load to at least one of the neutral bus and the at least first engagement structure to electrically connect together the neutral bus and the conductor
Data Source
AI summary
An improved connection apparatus is connectable with an elongated neutral bus to electrically connect a neutral conductor to the neutral bus. The connection apparatus is movable among any of a variety of positions along the neutral bus in order to facilitate connection of the various neutral conductors with the neutral bus at various desirable locations within an electrical enclosure. The connection apparatus is also advantageously removable from the neutral bus and is reinstallable thereon to facilitate changing the locations of the connections between the neutral conductors and the neutral bus and to avoid interference between any of a neutral connection, a connection apparatus, a neutral bus, and a circuit interrupter.