Overcurrent protection device trip alert method
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Solution Overview
Problem
Existing electrical systems lack a mechanism to promptly identify and alert users of insufficient overcurrent protection devices, leading to unnecessary shutdowns and potential hazards due to improper sizing of fuse or circuit breaker ratings.
Innovation Solution
A method utilizing a controller that determines events associated with a distinctive marker during system power-up, logs these events in non-volatile memory, and communicates alerts through visual or audio devices to inform users of power limitations, thereby restricting subsystem activations and ensuring safe operation within allowable power levels.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If an overcurrent protection device is improperly sized, then the system may experience unnecessary shutdowns and downtime, but the device does not provide an alert as to the reason for the shutdown
Solution Approach 1:
The patent implements a feedback mechanism where the controller monitors power-up events and detects circuit breaker trips. Upon detection, the controller generates and communicates an alert message indicating the specific cause of the shutdown (improperly sized circuit breaker). This closed-loop feedback provides diagnostic information that was previously unavailable, enabling users to understand the root cause of system interruptions.
Solution Approach 2:
The controller acts as an intermediary between the circuit breaker and the user. It monitors the circuit breaker's operation, interprets trip events, and translates them into meaningful alert messages. This intermediary function bridges the gap between the protective device and the user, providing clear diagnostic information about system status and issues.
2Object-affected harmful factors
If the overcurrent protection device rating is too low, then electrical safety is maintained, but system operations are unnecessarily restricted
Solution Approach 1:
The system performs preliminary monitoring during the power-up sequence to detect circuit breaker trips before they cause system shutdown. By detecting the trip event early in the power-up process and communicating an alert message, the system provides advance warning that allows users to address the sizing issue before it impacts operational capacity.
Solution Approach 2:
The alert communication mechanism provides feedback to users about the relationship between circuit breaker sizing and system operation. This feedback loop enables users to understand whether operational restrictions are due to safety requirements or improper device sizing, allowing them to make informed decisions about system configuration and upgrades.
3Device complexity
If no monitoring mechanism is implemented, then the system structure remains simple, but the root cause of power-up failures cannot be identified
Solution Approach 1:
The patent extracts the monitoring and detection function as a separate, dedicated process within the controller. The controller specifically monitors power-up events and circuit breaker trip conditions, separating this diagnostic function from other system operations. This extraction enables focused detection of failure causes without requiring complete system redesign.
Solution Approach 2:
The controller performs self-diagnosis by monitoring its own power-up events and detecting circuit breaker trips autonomously. The system uses its existing processing capabilities to monitor, detect, and communicate failure causes without requiring external monitoring equipment, enabling self-service diagnostics with minimal added complexity.
Data Source
AI summary
A method for detecting an insufficient power condition of a power supply to a system from a distinctive marker using a controller, the method including: upon a power-up of the system, determining an event associated with the distinctive marker; and periodically logging the distinctive marker in a non-volatile memory with respect to time, starting at the power-up of the device.