Remote Trip GFCI Circuit Breaker Single Mechanism
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Solution Overview
Problem
GFCI circuit breakers face challenges in incorporating a remotely actuated manual or automatic trip mechanism due to size and cost constraints, and existing solutions require separate mechanisms for manual and automatic tripping, as well as ground fault detection.
Innovation Solution
A circuit breaker design that uses a single trip mechanism for both manual and automatic tripping, including electronic signal communication for remote control, and a logical decision-making process to determine the tripping state based on 'off' commands, ground faults, or overcurrent situations, eliminating the need for separate mechanisms and reducing size and cost.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If separate mechanisms are provided for manual tripping, automatic tripping, and ground fault detection in GFCI circuit breakers, then the reliability and functionality of the device is improved, but the device size and manufacturing cost increase
Solution Approach 1:
The patent combines multiple tripping mechanisms (manual, automatic, and ground fault detection) into a single integrated trip mechanism. The controller receives signals from different sources (manual button, automatic control system, ground fault detection) and activates the same trip mechanism to open the circuit, eliminating the need for separate mechanical components for each function.
Solution Approach 2:
The trip mechanism is designed as a universal component that can be actuated by multiple different signals and control methods. It serves multiple functions: manual tripping via button press, automatic tripping via remote control signal, and ground fault tripping via detection circuitry, all through a single mechanism that responds to different input types.
2Adaptability or versatility
If separate mechanisms are provided for manual tripping, automatic tripping, and ground fault detection in GFCI circuit breakers, then the functionality of the device is improved, but the manufacturing cost increases
Solution Approach 1:
The patent merges multiple tripping functions into a single integrated mechanism, reducing the total number of components that need to be manufactured and assembled. This consolidation lowers manufacturing complexity and cost while maintaining all required tripping capabilities.
Solution Approach 2:
The universal trip mechanism can be actuated by multiple different signals (manual button, remote control, ground fault detection), providing versatile functionality without requiring separate dedicated mechanisms for each function, thereby reducing manufacturing costs.
3Ease of operation
If a remotely actuated trip mechanism is incorporated into GFCI circuit breakers, then the ease of operation is improved, but the device complexity increases
Solution Approach 1:
The patent replaces complex mechanical remote actuation mechanisms with an electronic control system. The controller receives electronic signals (either manually initiated or automatically generated) and activates the trip mechanism through electrical signaling, eliminating the need for complex mechanical linkages, solenoids, or motors that would be required for pure mechanical remote operation.
Data Source
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AI summary
A circuit interrupter electrically connects a line terminal to a load terminal in a closed condition and electrically disconnects the line terminal from the load terminal in the open condition. A controller includes a fault detector configured to detect a fault in an electrical signal in a load circuit, such that when a fault is detected on the load circuit, the fault detector causes actuation of the interrupter to the open condition. The controller is adapted to receive an off command, and in response to the off command, generate a simulated fault in the load circuit, such that the fault detector causes actuation of the interrupter to the open condition, such that one and the same interrupter is employed for both fault tripping and commanded tripping.