Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/37831
Title: Observations from measurements of the furfural content of oil samples from transmission transformers
Authors: Macalpine, JMK
Zhang, C
Keywords: Chemical variables measurement
Insulation testing
Paper
Power transformer insulation
Power transformer testing
Transformer oil
Transformer windings
Issue Date: 2000
Source: Fifth International Conference on Advances in Power System Control, Operation and Management : APSCOM-00 : October 30-November 1, 2000, Sheraton Hong Kong Hotel, p. 317-321 How to cite?
Abstract: The concentration of the chemical furfural in transformer oil is well known to be an indicator of the extent to which the paper insulation of the windings has deteriorated. However, the majority of publications on this topic are based on small-scale laboratory investigations with very little on field experience with power transformers. This paper reports the analysis of data on the concentration of furfural in oil samples from 310 transmission transformers. The data indicated that there was no discernible steady increase in the furfural concentration (FC) but that occasionally a large increment in FC occurred which was assumed to be due to significant overloads. This was demonstrated by: repeat measurements separated by up to 2 years; by a tendency for high-FC transformers to be over 12 years old and located in districts known to have had a high probability of overload in the 1980s; and by a simulation based on this model which showed a similar pattern of occasional high FCs but most transformers lasting 20 years or more without significant deterioration. The beneficial effect of changing the oil on high-FC transformers to limit further deterioration is also discussed.
URI: http://hdl.handle.net/10397/37831
ISBN: 0-85296-791-8
DOI: 10.1049/cp:20000414
Appears in Collections:Conference Paper

Access
View full-text via PolyU eLinks SFX Query
Show full item record

Page view(s)

27
Last Week
1
Last month
Checked on Sep 17, 2017

Google ScholarTM

Check

Altmetric



Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.