Separable Loadbreak Connector With Multi-Contact Arc Division
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Solution Overview
Problem
Current separable loadbreak connectors are limited by arc energy density during loadmake and loadbreak operations, restricting their safe operation and reliability, especially in high-current applications, and require improvements to meet higher ratings without infrastructure redesign.
Innovation Solution
A separable loadbreak system with multiple contact zones separated by insulated gaps, featuring a floating contact and a multi-piece probe design that reduces arcing time and energy by dividing the arc into multiple sections, allowing for enhanced ratings without failure allowances.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If single contact point design is used, then device complexity is reduced, but arc energy density increases limiting safe operation ratings
Solution Approach 1:
The patent divides the single contact point into multiple contact points (first contact point and second contact point) spaced apart along the probe. This segmentation reduces the arc energy density at each individual contact point, allowing the connector to safely handle higher current ratings while maintaining operational reliability.
2Reliability
If multiple contact points are used, then arc energy density is reduced enabling higher ratings, but device complexity increases
Solution Approach 1:
The connector is segmented into multiple contact points with insulated spacing, distributing the arc energy across multiple locations. This allows higher current ratings to be achieved while the overall device complexity remains manageable through the systematic arrangement of contacts and insulation.
Solution Approach 2:
An insulated zone acts as an intermediary element between the first and second contact points, preventing direct electrical connection while maintaining mechanical structure. This intermediary component enables the multiple contact point design to function effectively without excessive complexity.
3Adaptability or versatility
If higher current ratings are pursued, then system versatility is improved, but arc energy control becomes more difficult
Solution Approach 1:
By segmenting the contact into multiple points, the arc energy that would normally concentrate at a single point is distributed across multiple locations. This segmentation enables the system to handle higher current ratings while maintaining control over arc energy through the physical separation and insulation between contact points.
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 system effectively reduces arcing time and energy, enabling safe and reliable operation at higher currents, meeting IEEE 386 standards without infrastructure changes, and supports versatile adaptability with existing and enhanced probe designs.
Implementation Method 1
the insulated zone provides insulation and isolation relative to the first and second contact zones
Implementation Method 2
providing multiple contact points which simultaneously make contact at the same time, reducing the arc energy at each contact point
Data Source
AI summary
A new and improved separable loadbreak connector system capable of providing higher switching and fault close ratings by various means of dividing the arc energy within the connector system.