Residual Current Protection Device Wireless Communication Module
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Solution Overview
Problem
Existing electrical protection arrangements for installations, particularly residual current devices, face limitations in remote monitoring and operation due to range constraints in data transmission, requiring on-site presence for fault detection and system management.
Innovation Solution
Incorporating a communication module that enables the transmission and reception of residual current data and operating data via a communication system, allowing remote monitoring and operation of the residual current protection device, with the ability to adjust settings and trigger signals, and providing galvanic isolation of electrical lines.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If electrical contacts with twisted-pair cables are used for remote control and monitoring, then data transmission is enabled, but the range is limited to maximum cable lengths (e.g., 300 meters)
Solution Approach 1:
The patent replaces the mechanical/electrical cable-based communication system with a wireless communication system. The wireless communication module enables data transmission between the residual current device and external devices without physical cable connections, thereby eliminating the 300-meter cable length limitation and enabling unrestricted remote monitoring and control operations.
2Reliability
If on-site presence is required for fault detection and system management, then direct system access is ensured, but downtime and service times increase
Solution Approach 1:
The patent implements a feedback mechanism where the wireless communication module continuously transmits operational data, fault information, and system status to external devices. This enables real-time monitoring and immediate fault detection without requiring on-site presence, allowing operators to respond to alerts remotely and reduce both downtime and service response times while maintaining reliable fault detection capability.
3Ease of operation
If auxiliary releases with electromechanical systems are used, then switching mechanisms can be actuated, but the system complexity increases
Solution Approach 1:
The patent replaces the complex electromechanical auxiliary release system with a wireless communication-based control system. The wireless communication module receives control signals wirelessly and triggers the circuit breaker or switching mechanism through electronic control, eliminating the need for complex electromechanical components like release magnets and mechanical actuation systems, thereby reducing overall system complexity while maintaining remote triggering capability.
Data Source
AI summary
The invention relates to an electrical protection arrangement (1) for an electrical installation with a residual current protection device (2) comprising a detection device for detecting a fault current and an evaluation device for comparing the detected fault current with a threshold value and for outputting a trip signal if the detected fault current exceeds the threshold value, and a communication module (11) configured to send fault current data, which includes information on the detected fault current, and to receive operating data for setting an operating state of the evaluation device.