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Case Studies | Electrical Power Engineering | United Arab Emirates | Volume 10 Issue 1, January 2021
Corrosive Sulphur and DBDS in Transformer Oil: Risk Assessments and Mitigation Actions on Power Transformers and Reactors - Utility Experience
Magdy Abdelsalam Osman Ismail | Ashish George Ellengical | Rohan Dsouza | Mohammed Intekhab Shaikh
Abstract: Research by certain international agencies/ laboratories, following the failure of many high voltage equipment in different parts of the world, have led to the finding that copper sulphide produced by the reaction of DBDS with bare copper/ winding conductor could reduce the dielectric strength of the paper insulation, eventually resulting in breakdown of the equipment. Considering the novelty of the phenomenon and the potential threat imposed on transmission equipment, Dubai Electricity and Water Authority conducted a study to identify & assess the risk to equipment and take necessary actions to mitigate the risk. This paper describes the strategic approach and the results of the study as well as implementation and the current status of the mitigation actions.
Keywords: Corrosive Sulphur, Copper Conductor, Copper Sulphide, Thermal Aging, Oil-paper insulation, Transformer, Reactor, Mitigation, Passivation, Reclamation, Adsorbent, Replacement
Edition: Volume 10 Issue 1, January 2021,
Pages: 5 - 11
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New Innovation and Idea, Electrical Power Engineering, United Arab Emirates, Volume 11 Issue 10, October 2022
Pages: 245 - 247Sustainable Initiative - Go Green Conception Testing of High Voltage Cables
Asraf Ali Syeed | Abdul Rasheed | Maher Al Ejel
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Research Paper, Electrical Power Engineering, India, Volume 10 Issue 7, July 2021
Pages: 532 - 538Accurate Method of Excitation Current and Relay Current Prediction during an Offset Fault at the Terminals of Power Transformer and Derivation of Saturated Relay Current
PV Subramanian | Ajitha Lekalappudi | Nupur Gayathri