Copper Release Kinetics and Ageing of Insulation Paper in Oil-Immersed Transformers
Copper Release Kinetics and Ageing of Insulation Paper in Oil-Immersed Transformers作者机构:Departmentof Fibre and Polymer Technology KTH—The Royal Institute of Technology Stockholm Sweden Wallenberg Wood Science Centre KTH—The Royal Institute of Technology Stockholm Sweden Kyiv National University of Trade and Economics Kyiv Ukraine Sveacon Consulting Stockholm Sweden
出 版 物:《Engineering(科研)》 (工程(英文)(1947-3931))
年 卷 期:2015年第7卷第8期
页 面:514-529页
学科分类:1002[医学-临床医学] 100214[医学-肿瘤学] 10[医学]
主 题:Transformer Oil Insulating Oil Copper Corrosion Paper Degradation Ageing
摘 要:The paper provides a general overview of chemical processes leading to the degradation of oil-paper insulation in oil-immersed electrical current transformers. Previous knowledge available in literature is complemented by new results placing a specific emphasis on the physicochemical factors which affect the copper release in the insulation oil and the oil oxidation kinetics. It is demonstrated that various ageing processes interact with each other, with one or another process dominating under specific conditions. Comprehensive but disjoint studies focusing on separate sub-processes may produce rather misleading results, and occasionally, lie behind rather irrelevant quality demands imposed on the insulating liquids.