Modular Electrical Metering Equipment with Insulating Bus Bar Plates
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Solution Overview
Problem
Existing electrical service equipment is custom-built for local power company requirements and cannot accommodate different voltage and current characteristics, limiting its use across various locations and failing to provide adequate protection against short circuits and universal connector compatibility.
Innovation Solution
A modular electrical system with a transformer subassembly using horizontally arranged, insulating plates and bus bars that can withstand high short circuit currents, allowing for universal connector compatibility and increased safety features, including protection against falling objects and remote switch indication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If existing service equipment is customized for local power company requirements, then it meets specific voltage and current characteristics, but it cannot be used in other locations with different requirements
Solution Approach 1:
The service equipment is designed with universal mounting plates and standardized bus bar configurations that can accommodate different power company requirements without customizing the entire device. The mounting plates can be adapted to various connector types while maintaining the core structure, allowing one device to serve multiple power companies with different specifications.
2Reliability
If service equipment is rated for high fault currents up to 50K Amps, then it provides adequate protection, but the interior arrangement and size are tied to specific requirements
Solution Approach 1:
The service equipment is divided into modular components including removable mounting plates, separate bus bar assemblies, and distinct connector sections. This segmentation allows the high fault current protection capability to be maintained while enabling flexible reconfiguration for different applications by simply changing the mounting plate or connector assembly rather than redesigning the entire device.
3Ease of manufacture
If standard copper bars are used for interconnecting conductors, then electrical connection is provided, but they do not provide protection against excessive short circuit currents
Solution Approach 1:
The service equipment utilizes composite construction combining copper bus bars for electrical conductivity with insulating material supports and protective enclosures. The copper bars are mounted on insulating plates that provide mechanical support and electrical isolation, creating a composite structure that maintains ease of manufacture while providing enhanced protection against short circuit currents through the integrated design of conductive and insulating elements.
Data Source
AI summary
An electrical service equipment provides electrical service to a building or other similar venue. The equipment includes a cabinet with two portions structured to hold a meter pan and a switch, respectively. The switch is preferably an HCP switch. The portion holding the meter pan includes a subassembly including two horizontal plates and a plurality of buses passing through the plate and adapted to provide connection to the current and voltage transformers of the meter pan.