Measuring Module for Busbar Systems with Wireless Data Transmission
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Solution Overview
Problem
Conventional busbar systems lack the capability to simply measure current and voltage parameters during the operation of connected electrical loads, and existing solutions do not provide safe assembly or disassembly under voltage conditions.
Innovation Solution
A measuring module with a transmitter unit that wirelessly transmits measurement results from a measuring unit to a receiver unit, using Rogowski coils, shunts, Hall sensors, or GMR sensors to measure current phases, and an external evaluation unit that monitors error-free functioning, allowing for safe and simple measurement of current and voltage parameters, even under live conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a conventional connection of a load to a busbar system is used, then the system structure is simple, but there is no possibility of measuring current parameters and voltage parameters during operation
Solution Approach 1:
The measuring module is designed as a separate, self-contained unit that can be independently integrated into the busbar system. This segmentation allows measurement functionality to be added without redesigning the entire system, resolving the contradiction between measurement capability and system complexity.
Solution Approach 2:
The measuring module is designed to be universally applicable to different busbar configurations and can measure multiple parameters (current and voltage) simultaneously. This multi-functionality approach adds comprehensive measurement capabilities while maintaining a single modular component, balancing measurement precision with device complexity.
2Reliability
If the busbar adapter and measuring module are protected against accidental contact, then safety is improved, but assembly and disassembly procedures become more complex
Solution Approach 1:
The measuring module acts as an intermediary component between the busbar adapter and the load. It provides protected contact points for measurements while maintaining the existing safety structure of the busbar system, allowing safe assembly and disassembly without compromising protection against accidental contact.
3Measurement precision
If the measuring module is integrated between the busbar adapter and switching device, then measurement capability is added, but the device complexity increases
Solution Approach 1:
The measuring module combines multiple measurement functions (current measurement via Rogowski coil or shunt, voltage measurement via potential taps) into a single integrated unit. This merging of functions adds comprehensive measurement capability while minimizing the increase in device complexity by consolidating components rather than adding separate measurement devices.
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
Enables safe and straightforward measurement of current and voltage parameters during operation, allowing for real-time monitoring and data transmission without disrupting the busbar system, with the measuring module being easily integrated between a switching device and a busbar adapter, ensuring finger-safe operation and retrofittability.
Implementation Method 1
the current strengths I of the current phases L are measured by means of Rogowski coils contained in the measuring module
Implementation Method 2
the current strengths I of the current phases L are measured by means of Rogowski coils contained in the measuring module or by means of shunts or by means of Hall sensors
Implementation Method 3
the current strengths I of the current phases L are measured by means of GMR sensors
Implementation Method 4
the measuring module has a transmitter unit connected to the measuring unit, which wirelessly, i.e. optically or wirelessly, transmits the measurement results supplied by the measuring unit to a receiver unit
Data Source
Figure 1
Figure 2
AI summary
Measuring module (5) for a busbar system (1) in which a switching device (4) can be connected to the busbars of the busbar system (1) for the supply of current phases (L) via a busbar adapter (3) mounted on busbars (2-i), wherein the measuring module (5) can be inserted between the busbar adapter (3) and the electrical device (4) and contains a measuring unit (5A) which simultaneously measures the voltages (U), the currents (I) and the phase shifts (Δϕ) of all current phases (L) applied to the switching device (4) via the inserted measuring module (5) and reports the measurement results to an external evaluation unit (8).