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| Content Provider | IET Digital Library |
|---|---|
| Author | Rao, U. Mohan Sood, Yog Raj Jarial, Raj Kumar |
| Abstract | This study reports experimental study of cellulose performance in mixture of mineral and synthetic ester (SE) oils. Solid insulation impregnated with mineral oil (MO) and mixture oil has been subjected to accelerated thermal stresses to understand the deterioration rate of cellulose. Diffusion of oil–moisture mixture into paper and corresponding variation in dielectric strength of paper has been examined. Compatibility of solid insulation with MO and mixture oil is analysed by thermal expansion coefficients, X-ray diffraction analysis and dissolved decay products. Furthermore, chemical functional groups present in aged oils are identified by Fourier transform infrared spectroscopy analysis. It is observed that the performance of cellulose insulation is improved with addition of SE to MO. This is achieved by higher water solubility of esters, which enables higher moisture consumption during hydrolysis and keeps cellulose dry. |
| Starting Page | 297 |
| Ending Page | 304 |
| Page Count | 8 |
| ISSN | 17518822 |
| Volume Number | 11 |
| e-ISSN | 17518830 |
| Issue Number | Issue 3, May (2017) |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/iet-smt/11/3 |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/10.1049/iet-smt.2016.0334 |
| Journal | IET Science, Measurement & Technology |
| Publisher Date | 2016-12-02 |
| Access Restriction | Open |
| Rights Holder | © The Institution of Engineering and Technology |
| Subject Keyword | Accelerated Thermal Stresses Cellulose Insulation Deterioration Rate Dielectric Material And Property Dielectric Strength Dissolved Decay Products Electric Strength Fourier Transform Infrared Spectra Fourier Transform Infrared Spectroscopy Analysis Hydrolysis Inductors And Transformer Mineral Oil Moisture Consumption Oil–moisture Mixture Organic Insulation Solubility Synthetic Ester Oils Thermal Expansion Thermal Expansion Coefficient Thermal Stresses Transformer And Reactors Transformer Oil Water Solubility X-Ray Diffraction X-Ray Diffraction Analysis |
| Content Type | Text |
| Resource Type | Article |
| Subject | Atomic and Molecular Physics, and Optics Electrical and Electronic Engineering |
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