Energy Meter Adapter With Voltage Conversion for High-Voltage Isolation

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Solution Overview

Problem

Existing energy measuring devices are limited by their dielectric strength, preventing them from measuring voltages above a defined upper limit, which restricts their use in environments requiring higher dielectric strength.

Innovation Solution

An adapter with a voltage converter device that connects to energy measuring devices, converting higher voltages from a power network into lower voltages suitable for the device, allowing it to measure voltages beyond its original design limit, while maintaining a compact and space-saving design.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the energy measuring device is designed with a predetermined dielectric strength to comply with standards, then it can ensure safety and reliability, but it can only measure voltages up to a defined upper voltage limit

Engineering Contradiction:
Improvedielectric strengthVSAvoidvoltage measurement range
Core Design Contradiction:
ReliabilityVSAdaptability or versatility

Solution Approach 1:

The patent introduces an adapter as an intermediary device between the high-voltage power grid and the energy measuring device. The adapter includes a voltage converter that transforms the high voltage from the power grid into a lower voltage suitable for the measuring device, while maintaining the required dielectric strength through proper spacing of electrical connections. This allows the measuring device to indirectly measure voltages beyond its original design limit without compromising safety.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Reliability

If the adapter increases the dielectric strength by providing greater spacing between electrical connections, then it enables measurement of higher voltages, but it may increase the overall size of the device

Engineering Contradiction:
Improvedielectric strengthVSAvoidadapter size
Core Design Contradiction:
ReliabilityVSVolume of moving object

Solution Approach 1:

The patent arranges the electrical connections in a multi-dimensional configuration within the adapter housing. By utilizing three-dimensional space efficiently and positioning connections in different spatial dimensions rather than simply increasing linear spacing, the adapter achieves the required dielectric strength while maintaining a compact overall size suitable for practical installation.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

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 adapter increases the dielectric strength of the energy measuring device, enabling it to measure higher voltages than previously possible, and allows for a compact, space-saving installation by mechanically coupling with a mounting rail.

Implementation Method 1

the voltage converter device is electrically connected to the at least two second electrical connections and the at least two third electrical connections and converts a first voltage that can be applied to the at least two second electrical connections into a lower second voltage that is applied to the at least two third electrical connections

Methodology Applied
Scientific EffectVoltage conversion: Electromagnetic Induction

Data Source

PatentEP3931579B1Adapter for an energy meter and energy measurement device
Publication Date: 2024.09.04 PHOENIX CONTACT GMBH & CO KG
  • EP3931579B1 patent drawingFigure 1
  • EP3931579B1 patent drawingFigure 2
  • EP3931579B1 patent drawingFigure 3

AI summary

The invention relates, inter alia, to an adapter (22, 22') for an energy meter (21, 21'), wherein the adapter (22, 22') has a voltage converter (30), at least two first electrical terminals (50-53; 50'-53') for connection to respective conductors (11-14) of a power grid (10) and at least two second electrical terminals (54-57; 54'-57') to which an energy meter (21; 21') can be electrically connected, wherein the voltage converter (30) is electrically connected to the at least two first electrical terminals (50-53) and the at least two second terminals (54-57) and converts a first voltage, which can be applied to the at least two first electrical terminals (50-53), into a lower second voltage that is applied to the at least two second electrical terminals (54-57), wherein the voltage ratio between the first and the second voltage is predetermined and can be stored in an energy meter (21, 21'), and there is a spacing d1 between the at least two first electrical terminals (50-53; 50'-53') that is greater than the spacing d2 between the at least two second electrical terminals (54-57; 54'-57').