| Keyword : | Transformer,Diagnosis,Analysis of Dissolved Gas in Oil, Online monitoring,Frequency Response Analysis (FRA) |
partial discharge application UHF method, realization of online monitoring system of dissolved gas in oil, sophistication of trouble diagnosis, monitoring technology of FRA, and research for dielectric correspondence analysis measures water amount of insulation materials.
It is necessary to maintain and operate aged transformers economically installed in the high-growth period. Appropriate maintenance management, degradation diagnosis, and sophisticated lifetime diagnosis technology are important to meet conflicting needs of high reliability and durability of aged equipment because long time operation is required from an economical perspective.
The report on reliability technology of oil immersed transformer titled 'Situation and Trend of Reliable Maintenance Technology of Aged Transformer' was posted in Technical report of IEEJ published in 2003, while the diagnosis for aged transformer has attracted world attention, and many reports on monitoring technology with a central focus on online monitoring technology have been presented.
©2007. The Institute of Electrical Engineers of Japan