Fluid-Insulated Phase Conductor with Mutual Support

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Solution Overview

Problem

Existing fluid-insulated phase conductors are mechanically complex and expensive due to their design, which complicates the compensation for changes in shape and length.

Innovation Solution

A fluid-insulated phase conductor with conductor tracks that support each other via electrically insulating means, enclosed within a hermetically sealed encapsulating housing, allowing for efficient heat dissipation and current distribution, and featuring a multi-wire design with stranded wires for enhanced flexibility and stability.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If the phase conductor is divided into several parallel conductor tracks with helical winding to achieve flexibility, then the flexibility and current distribution are improved, but the mechanical complexity increases due to the need for central guide rods and caps to stabilize the conductor

Engineering Contradiction:
ImproveflexibilityVSAvoidmechanical complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The phase conductor is divided into multiple parallel conductor tracks that can move independently relative to each other. This segmentation allows each track to flex independently while maintaining electrical continuity, achieving flexibility without requiring complex stabilization mechanisms like central guide rods or caps.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Electrically insulating means are introduced as intermediaries between adjacent conductor tracks to prevent electrical contact while allowing mechanical movement. This intermediary solution enables the conductor tracks to support each other mechanically while maintaining electrical insulation, replacing the need for complex stabilization structures.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Device complexity

If conductor tracks are supported directly on each other to simplify the structure, then mechanical complexity is reduced, but electrical insulation between tracks cannot be ensured

Engineering Contradiction:
Improvestructural simplicityVSAvoidelectrical insulation
Core Design Contradiction:
Device complexityVSReliability

Solution Approach 1:

Electrically insulating means are positioned between adjacent conductor tracks to serve as intermediaries that provide both mechanical support and electrical insulation. These insulating elements allow the tracks to be supported on each other structurally while preventing electrical contact, thus maintaining both simplicity and reliability.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The electrically insulating means perform multiple functions simultaneously: they provide mechanical support between conductor tracks, ensure electrical insulation, and allow relative movement between tracks. This multi-functionality eliminates the need for separate stabilization components, achieving both structural simplicity and electrical reliability.

Inventive Principle:
Principle #6Universality (Multi-functionality)

3Stability of the object's composition

If a central guide rod and cap are used to stabilize the phase conductor, then mechanical stability is improved, but the device becomes more complex and expensive

Engineering Contradiction:
Improvemechanical stabilityVSAvoidstructural complexity
Core Design Contradiction:
Stability of the object's compositionVSDevice complexity

Solution Approach 1:

The invention extracts and eliminates the central guide rod and cap from the phase conductor structure. Instead of adding stabilization components, the solution relies on the mutual support of conductor tracks through electrically insulating means, achieving mechanical stability without complex additional structures.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The conductor tracks support each other mutually through electrically insulating means, creating a self-stabilizing structure. Each track contributes to the overall mechanical stability of the phase conductor without requiring external stabilization components like guide rods or caps, achieving stability through self-service.

Inventive Principle:
Principle #25Self-service

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 simplifies the structure while maintaining mechanical stability and electrical insulation, allowing for efficient heat dissipation and improved current carrying capacity, with reduced mechanical stress and cost.

Implementation Method 1

The electrically insulating fluid should preferably be enclosed within a housing, with the fluid-insulated phase conductor located at least partially within this housing. This allows the phase conductor to be surrounded, or even flushed, by the electrically insulating fluid.

Methodology Applied
Scientific EffectElectrical insulation: Dielectric

Implementation Method 2

In addition to its electrically insulating effect, the electrically insulating fluid can also be used to cool the fluid-insulated phase conductor.

Methodology Applied
Scientific EffectConvection: Convection

Implementation Method 3

faults can be automatically cleared by the fluid's turbulence

Methodology Applied
Scientific EffectTurbulence: Turbulence

Implementation Method 4

The encapsulation housing should preferably be hermetically sealed so that the electrically insulating fluid cannot escape from the encapsulation housing or be contaminated by other media.

Methodology Applied
Scientific EffectHermetic sealing: Physical Containment

Implementation Method 5

supporting the conductor tracks on each other via support surfaces which are protected from direct contact with each other by an electrically insulating means

Methodology Applied
Scientific EffectFriction: Friction

Data Source

PatentEP3207548B1Arrangement comprising a fluid-insulated phase conductor
Publication Date: 2020.09.02 SIEMENS ENERGY GLOBAL GMBH & CO KG
  • EP3207548B1 patent drawingFigure 1~2
  • EP3207548B1 patent drawingFigure 3

AI summary

The invention relates to a fluid-insulated phase conductor (1, 1a), around which an electrically insulating fluid is flowing and which is arranged within an encapsulation housing (2, 2a). The phase conductor (1, 1a) has at least in some areas a plurality of electrically parallel conductor tracks (16, 17, 18, 19, 20, 21), wherein the conductor tracks (16, 17, 18, 19, 20, 21) mutually support each other.