Compact Electrical Fault Detection Module for Space-Constrained Panels
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing electrical protection assemblies require multiple detection modules for different types of electrical faults, leading to bulkiness and space constraints, particularly in industrial installations where space is limited, resulting in potential unprotected areas due to the inability to accommodate all necessary modules.
Innovation Solution
A compact detection module capable of integrating multiple fault detection functions within a single unit, utilizing a specific form factor and components such as toroidal magnetic cores and electronic cards, allowing for dual protection without the need for separate modules for each fault type, and can be integrated with a circuit breaker in a common casing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple detection modules are used for different types of electrical faults, then the protection coverage is improved, but the bulk and space requirement increase
Solution Approach 1:
The patent combines multiple detection modules for different electrical fault types (residual current detection, arc detection, overload detection) into a single integrated detection module. This merging approach maintains comprehensive protection coverage while significantly reducing the overall bulk and space requirements compared to using separate modules for each fault type.
Solution Approach 2:
The detection module is designed with multi-functional capabilities to detect various types of electrical faults simultaneously. It incorporates multiple sensors and detection circuits that can identify residual currents, electric arcs, and overload conditions within a single unified device, eliminating the need for multiple specialized modules.
2Reliability
If multiple detection modules are installed for comprehensive fault detection, then the detection capability is improved, but the device complexity increases
Solution Approach 1:
The patent integrates multiple detection functions into a single modular unit with a unified structure. The module combines residual current detection, arc detection, and overload protection circuits within one compact housing, reducing device complexity by eliminating the need to manage and coordinate multiple separate modules while maintaining comprehensive detection capability.
3Area of stationary object
If the electrical panel size is increased to accommodate multiple detection modules, then the space availability is improved, but the adaptability to existing installations decreases
Solution Approach 1:
The patent consolidates multiple detection functions into a single compact module that can be installed in existing electrical panels without requiring enlargement. This integration maintains adaptability to existing installations while providing comprehensive fault detection coverage that would otherwise require multiple separate modules and more space.
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 compact module reduces the overall size and cost of the protection assembly, enabling installation in standard electrical panels and facilitating connection in space-constrained environments, ensuring comprehensive fault protection without the need for multiple modules.
Implementation Method 1
The module comprises a first measurement toroid and a second measurement toroid
Data Source
Figure 1
Figure 2
Figure 3
AI summary
This electrical fault detection module (6) comprises: - a housing (8); - a first conductor (30) and a second conductor (32); - a first current transformer (34), arranged around the first and second conductors, to measure a differential current flowing between them; - a second current transformer (36), arranged around the first conductor, to detect an arc flash signal flowing in that conductor; - a relay; - an electronic processing circuit configured to switch the relay according to the current measured by the current transformers. The current transformers are aligned with each other, and the first transformer has an elongated tubular shape, enabling the differential protection to operate at its own current.