Connectable Disruptor Rods for Conductor Galloping Control

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Solution Overview

Problem

Existing devices for reducing conductor galloping, such as long preformed rods, face challenges in manufacturing, transportation, and installation due to their length, leading to increased costs and limited galloping reduction effectiveness.

Innovation Solution

The use of connectable disruptor rods with helical gripping and hook sections, formed from non-conductive materials like polyvinyl chloride, which can be easily manufactured, transported, and installed, providing improved galloping reduction by wrapping the rods around conductors and connecting the hook sections for enhanced turbulence reduction.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If long preformed rods are used for galloping reduction, then galloping control effectiveness is achieved, but manufacturing difficulty increases

Engineering Contradiction:

Improvegalloping control effectivenessVSAvoidmanufacturing difficulty

Core Design Contradiction:

ReliabilityVSEase of manufacture

Solution Approach 1:

The long preformed rod is divided into multiple shorter rod sections that can be connected together. Each rod section has manageable length for easy manufacturing, while multiple sections connected in series provide the necessary overall length for effective galloping control on different conductor sizes.

Inventive Principle:

Principle #1Segmentation

2Reliability

If long preformed rods are used for galloping reduction, then galloping control effectiveness is achieved, but transportation becomes unwieldy

Engineering Contradiction:

Improvegalloping control effectivenessVSAvoidtransportation ease

Core Design Contradiction:

ReliabilityVSEase of operation

Solution Approach 1:

The rod system is segmented into multiple shorter sections that are easier to transport individually. These sections can be carried and installed separately, then connected on-site to form the complete galloping control device, solving the transportation difficulty of long rods.

Inventive Principle:

Principle #1Segmentation

3Reliability

If long preformed rods are used for galloping reduction, then galloping control effectiveness is achieved, but installation becomes difficult and time-consuming

Engineering Contradiction:

Improvegalloping control effectivenessVSAvoidinstallation time

Core Design Contradiction:

ReliabilityVSLoss of time

Solution Approach 1:

The rod system is divided into multiple shorter sections that are easier to handle and install. The sections can be independently attached to the conductor and then connected together, reducing the time and difficulty of installation compared to installing a single long rod.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The rod sections are designed to be flexible and adaptable during installation. The connection mechanisms allow for easy assembly and adjustment, enabling installers to adapt to different conductor configurations and reduce installation time.

Inventive Principle:

Principle #15Dynamics

4Reliability

If long preformed rods are used for galloping reduction, then galloping control effectiveness is achieved, but costs increase

Engineering Contradiction:

Improvegalloping control effectivenessVSAvoidmanufacturing cost

Core Design Contradiction:

ReliabilityVSEase of manufacture

Solution Approach 1:

Dividing the rod into multiple shorter sections reduces manufacturing costs by allowing standard production processes to be used for each section rather than requiring specialized equipment for long rods. It also reduces transportation and installation costs, leading to overall cost reduction while maintaining galloping control effectiveness.

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

The solution facilitates easier and more efficient manufacturing, transportation, and installation while achieving enhanced galloping reduction compared to traditional methods, with the connectable design allowing for reduced rod lengths while maintaining effective galloping control.

Implementation Method 1

The first end portion includes a helical gripping section

Methodology Applied

Scientific EffectFriction: Friction

Implementation Method 2

The first end portion includes a helical gripping section

Methodology Applied

Scientific EffectMechanical interlocking: Mechanical Fastener

Implementation Method 3

The hook sections of the first and second disruptor rods are connectable to each other

Methodology Applied

Scientific EffectMechanical fastening: Mechanical Fastener

Implementation Method 4

wrapping the mid-sections of the first and second disruptor rods around the conductor

Methodology Applied

Scientific EffectTurbulence: Turbulence

Implementation Method 5

Galloping can be caused, for example, by wind power acting on the conductor

Methodology Applied

Scientific EffectAerodynamic drag: Drag

Data Source

PatentUS11217983B2Galloping motion disruptors and methods for reducing conductor galloping

Publication Date: 2022.01.04 AFL COMM LLC

AI summary

Galloping motion disruptors and methods for reducing conductor galloping are provided. A galloping motion disruptor includes a first disruptor rod and a second disruptor rod. Each of the first and second disruptor rods includes a first end portion, a second end portion, and a mid-section between the first end portion and the second end portion. The first end portion includes a helical gripping section. The second end portion includes a hook section. The hook sections of the first and second disruptor rods are connectable to each other.