Switchgear Adapter Assembly Horizontal Engagement
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Solution Overview
Problem
Existing switchgear assemblies are limited to either vertical or horizontal draw-out assemblies, requiring repeated vertical movement of the circuit breaker to engage and disengage with stationary disconnects, which is inefficient and cumbersome.
Innovation Solution
An adapter assembly is introduced, comprising vertical and horizontal disconnects with bus work connecting them, allowing the horizontal draw-out assembly to move horizontally into and out of engagement with the adapter assembly, enabling efficient engagement and disengagement of the circuit breaker with stationary disconnects without repeated vertical movement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a vertical draw-out assembly is used, then the circuit breaker can engage and disengage with stationary disconnects, but repeated vertical movement is required which is inefficient and cumbersome
Solution Approach 1:
The patent transitions from vertical movement to horizontal movement by introducing an adapter assembly with horizontal disconnects. The circuit breaker moves horizontally on the cell floor to engage with the adapter, eliminating the need for repeated vertical lifting and lowering operations.
Solution Approach 2:
The adapter assembly serves as an intermediary between the stationary vertical disconnects and the movable horizontal disconnects. It converts the vertical connection interface into a horizontal one, allowing the circuit breaker to engage and disengage through horizontal movement only.
2Productivity
If a lifting mechanism is used to move the draw-out assembly vertically, then engagement with stationary disconnects is achieved, but frequent operation of the lifting mechanism is required
Solution Approach 1:
The patent eliminates the need for frequent lifting mechanism operation by changing the movement dimension from vertical to horizontal. The circuit breaker engages and disengages by moving horizontally on the cell floor, completely avoiding repeated vertical lifting operations.
Solution Approach 2:
The patent extracts the lifting mechanism from the operational cycle. The adapter assembly is installed once using the lifting mechanism, but subsequent engagement and disengagement operations are performed horizontally without involving the lifting mechanism.
3Ease of operation
If the draw-out assembly is moved horizontally, then operational efficiency is enhanced, but compatibility with vertically oriented stationary disconnects must be maintained
Solution Approach 1:
The adapter assembly acts as a mediator that interfaces between the horizontal movement system and the vertical disconnects. It receives horizontal movement from the circuit breaker and converts it to vertical engagement with the stationary disconnects through its internal vertical disconnects.
Solution Approach 2:
The system is segmented into three functional parts: stationary vertical disconnects (fixed to frame), adapter assembly with both vertical and horizontal disconnects (installed in cell), and movable horizontal disconnects (on circuit breaker). This segmentation allows each part to perform its specialized function while maintaining overall compatibility.
Data Source
AI summary
An apparatus is configured for use with a switchgear assembly having a frame that defines at least one switchgear cell, stationary disconnects oriented vertically on the frame, and horizontal draw-out disconnects remote from the frame. In a given example, the apparatus includes an adapter assembly including vertical disconnects, horizontal disconnects, and bus work connecting the vertical disconnects with the horizontal disconnects. The adapter assembly is configured to take an installed position in the switchgear cell, with the vertical disconnects in the adapter assembly projecting upward into engagement with the stationary disconnects on the frame. The adapter assembly is further configured for the horizontal disconnects in the adapter assembly to engage and disengage from the horizontal draw-out disconnects upon movement of the horizontal draw-out disconnects horizontally into and out of engagement with the adapter assembly when the adapter assembly is in the installed position.