Abstract
The authors describe practical insulation life assessment techniques developed within the Queensland Electricity Commission for the estimation of remaining useful life of its large power transformers. Novel aspects of the technique are: (i) the use of a database of oil test results for statistical analysis of several aging indicators, to derive an 'insulation age' for the transformer; (ii) the extraction of paper samples from in-situ transformers for analysis of their degree of polymerization (DP); and (iii) the application of appropriate life models to typical power transformers to determine remaining life on a probabilistic basis. These analyses are supported by studies on dismantled large power transformers at the Commission's workshop, to determine the DP profile through typical transformers. From this, relationships are estimated between the DP at hot spots in the transformer and that obtained at convenient sampling locations. >
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
