GFI Adapter for Uniform Power Distribution Modules
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Solution Overview
Problem
Existing power distribution systems face challenges in providing ground fault interrupt (GFI) protection without adding unnecessary weight and cost by incorporating current sensing components into every module, or increasing complexity by using specialized GFI capable modules.
Innovation Solution
A ground fault interrupt (GFI) adapter is introduced, which includes current transformer (CT) sensors and a GFI detection circuit that can be used uniformly across all power distribution modules, enabling GFI protection while maintaining module uniformity and reducing weight and cost by only activating the GFI detection circuit when needed.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If current sensing components are incorporated into every power distribution module, then GFI protection is provided, but weight and cost increase unnecessarily
Solution Approach 1:
The power distribution system is segmented into modular units where GFI protection functionality is separated from the main power distribution modules. The GFI adapter serves as an independent segment that can be selectively attached only to modules requiring protection, eliminating the need to embed current sensing components in every module.
Solution Approach 2:
The GFI adapter is designed as a universal component that can be attached to any power distribution module regardless of its specific function or power rating. This single multi-functional adapter provides GFI protection across the entire system, replacing the need for specialized GFI-capable modules and maintaining system uniformity.
2Reliability
If current sensing components are incorporated into every power distribution module, then GFI protection is provided, but cost increases unnecessarily
Solution Approach 1:
The system is divided into standard power distribution modules and separate GFI protection adapters. This segmentation allows mass production of simple, low-cost modules without current sensing components, while GFI functionality is provided by separate adapters that can be manufactured economically and attached only where needed.
Solution Approach 2:
The GFI adapter is designed as a relatively simple, cost-effective add-on component rather than an integrated expensive feature in every module. This approach treats GFI protection as an optional enhancement that can be added selectively, reducing overall system cost while maintaining the capability when required.
3Reliability
If specialized GFI capable modules are used, then GFI protection is provided, but system uniformity is reduced and complexity increases
Solution Approach 1:
The system architecture is segmented so that all power distribution modules remain identical and standardized, while GFI protection is provided by separate adapter segments. This maintains uniformity in the core modules and simplifies inventory management, training, and maintenance procedures.
Solution Approach 2:
The GFI adapter acts as an intermediary component between the standard power distribution module and the load. This intermediary provides the specialized GFI functionality without modifying the standard modules, thereby maintaining system uniformity while adding protection where needed.
4Reliability
If current sensing components are incorporated into every power distribution module, then GFI protection is provided, but unnecessary weight is added
Solution Approach 1:
The system is segmented into lightweight standard modules and separate GFI adapters. Current sensing components are placed only in the adapters attached to protected circuits, eliminating the weight of redundant current sensing components in modules that do not require GFI protection.
Solution Approach 2:
GFI protection capability is applied locally only to specific modules where it is required, rather than uniformly to all modules. The GFI adapter adds weight and complexity only at the specific location where protection is needed, optimizing the overall system weight by avoiding unnecessary components elsewhere.
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 GFI adapter allows for uniform and cost-effective GFI protection across power distribution systems, ensuring safety without the need for current sensors in every module, thereby reducing weight and complexity while maintaining system uniformity and safety.
Implementation Method 1
A GFI adapter includes multiple current pass throughs, each operable to pass current from the power distribution module to the mating connector
Data Source
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AI summary
A power distribution system includes multiple uniform power distribution modules 30 and multiple uniform mating connectors 32. A portion of the mating connectors are connected to the power distribution modules directly and the remainder are connected to the power distribution modules via a ground fault interrupt adapter 34.