Inductive Sensor Fault Localization in Power Lines

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Solution Overview

Problem

Utility companies face prolonged risks and operational disruptions due to the time-consuming process of locating the cause of service interruptions in electrical networks, such as power outages, which can take hours and expose them to severe risks.

Innovation Solution

The implementation of an inductive monitoring system that includes electrical sensors coupled to transmission lines, capable of capturing power transmission information and communicating location data of outages or sub-optimal performance to processing and central control nodes, utilizing the Faraday Effect for fault detection and a wireless location sensor for precise location identification.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If traditional manual methods are used to locate the cause of service interruptions, then resources can be deployed to determine the cause, but it takes many hours to accurately locate the contributing factor, exposing the utility company to prolonged risks

Engineering Contradiction:
Improvelocation accuracy of faultVSAvoidtime to locate fault
Core Design Contradiction:
Measurement precisionVSLoss of time

Solution Approach 1:

The patent applies preliminary action by installing monitoring devices and sensors on transmission lines before faults occur. These devices continuously capture electrical signals, power transmission information, and environmental data, so that when a fault occurs, the pre-positioned sensors can immediately detect and locate it without requiring manual inspection or deployment of resources.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The patent replaces manual mechanical inspection methods with automated electronic sensing and signal processing systems. Electrical sensors, electromagnetic detectors, and automated analysis systems substitute for human operators physically traveling to locate faults, enabling rapid automated detection and localization of service interruptions through electrical signal analysis rather than mechanical search methods.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

2Productivity

If automated sensing devices are deployed to detect faults rapidly, then location accuracy and response time improve, but the device complexity and cost of the monitoring system increase

Engineering Contradiction:
Improvefault detection speedVSAvoidcomplexity of monitoring system
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The patent applies segmentation by dividing the monitoring system into separate functional modules: electrical sensors for detecting electrical anomalies, electromagnetic sensors for detecting magnetic field changes, communication modules for data transmission, and processing units for analysis. Each module performs a specific function, allowing the system to achieve high detection speed while managing complexity through modular design and specialized component allocation.

Inventive Principle:
Principle #1Segmentation

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

This system enables rapid localization of faults, allowing for quick addressing of issues and reducing the time and resources needed to resolve service interruptions, thereby minimizing risks and improving operational efficiency.

Implementation Method 1

inductively coupling an electrical sensor to a transmission line associated with a node of an electrical network

Methodology Applied
Scientific EffectElectromagnetic induction: Electromagnetic Induction

Implementation Method 2

utilizing the Faraday Effect for fault detection

Methodology Applied
Scientific EffectFaraday Effect: Faraday Effect

Data Source

PatentUS8593151B2Inductive monitoring of a power transmission line of an electrical network
Publication Date: 2013.11.26 DRAZAN JEFFREY M
  • US8593151B2 patent drawing
  • US8593151B2 patent drawing
  • US8593151B2 patent drawing

AI summary

A method includes inductively coupling an electrical sensor to a transmission line associated with a node of an electrical network, and capturing power transmission information associated with the node through the electrical sensor. The method also includes communicating, through an electrical sensing device including the electrical sensor, information associated with a location of a power outage and/or a sub-optimal performance in the node to a processing node and/or a central control node associated with the electrical network.