Bio-Sourced Dielectric Fluid Stabilization for Stray Gas Reduction
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Dielectric fluids used in electrical equipment face issues of oxidative degradation, leading to the generation of stray gases such as hydrogen, methane, and ethane, which can cause thermal instability and potential explosions, and existing antioxidants like di-tertbutylphenol-based compounds introduce color interference.
Innovation Solution
Incorporation of phosphite compounds into dielectric fluids, particularly those derived from bio-sourced oils, to stabilize the fluids by preventing the formation of peroxides and reducing stray gas generation, combined with non-phosphite antioxidants to enhance oxidative stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If di-tertbutylphenol-based antioxidants are added to dielectric fluids to prevent oxidative degradation, then oxidative stability is improved, but color interference is introduced
Solution Approach 1:
The patent changes the chemical parameter of the antioxidant from di-tertbutylphenol-based compounds to phosphite compounds, which have different chemical properties. Phosphite compounds provide the same oxidative stability function without producing colored degradation products, thus resolving the contradiction between reliability improvement and harmful color interference.
2Productivity
If dielectric fluids are used in electrical equipment to transport heat and provide insulation, then equipment performance is improved, but oxidative degradation occurs leading to stray gas generation
Solution Approach 1:
The patent introduces phosphite compounds as intermediary substances that mediate between the dielectric fluid and oxygen. These compounds act as antioxidants that prevent oxidative degradation of the base oil while maintaining its heat transport and insulation properties, thus resolving the contradiction between productivity and reliability.
3Object-affected harmful factors
If phosphite compounds are added to reduce stray gas formation, then safety is improved, but device complexity increases
Solution Approach 1:
The patent changes the chemical composition parameter by selecting phosphite compounds with specific properties (water solubility, thermal stability) that allow them to function effectively at low concentrations. This minimizes the impact on device complexity while achieving the safety improvement of reducing stray gas formation by up to 80%.
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 addition of phosphite compounds significantly reduces stray gas formation by up to 80% and maintains oxidative stability, ensuring the dielectric fluid's performance and safety in electrical equipment.
Implementation Method 1
oxidative degradation, leading to the generation of stray gases such as hydrogen, methane, and ethane
Implementation Method 2
preventing the formation of peroxides
Implementation Method 3
Thermal degradation is evidenced by generation of stray gases selected from hydrogen, methane, ethane, and ethylene
Implementation Method 4
dielectric fluids transport heat from the windings and core of the transformer or connected circuits to cooling surfaces
Implementation Method 5
factors that significantly affect the relative ability of the fluid to function as a dielectric coolant include viscosity, specific heat, thermal conductivity
Data Source
AI summary
A dielectric fluid is provided comprising a natural bio-sourced oil and one or more compounds selected from the group consisting of phosphite compounds. It has been discovered that addition of one or more compounds selected from the group consisting of phosphite compounds to dielectric fluids comprising oil impart a stabilizing effect that reduces, inhibits or prevents formation of stray gases in the dielectric fluid during ordinary use.