Aging of cellulose at transformer service temperatures. Part 2. Influence of moisture and temperature on degree of polymerization and formation of furanic compounds in free-breathing systems

IEEE Electrical Insulation Magazine

Volumn 21, Issue 5, 2005, Pages 20-24

  Hohlein I ^a   Kachler, A J ^a  

^a SIEMENS AG   (Germany)

Author keywords

Degree of polymerization; Furans; Moisture content; Oil paper transformer insulation; Thermal aging

Indexed keywords

AGING OF MATERIALS; FURAN RESINS; MOISTURE; POLYMERIZATION;

FURAN CONTENTS; MOISTURE CONTENTS; THERMAL AGING;

CELLULOSE;

CELLULOSE; FURANS; MOISTURE; POLYMERIZATION;

EID: 27144544806     PISSN: 08837554     EISSN: None     Source Type: Journal    
DOI: 10.1109/MEI.2005.1513426     Document Type: Review

References (11)

1. L. Lundgaard on behalf of WG D1.01, "Aging of paper", presented at CIGRE, Paris Main Session, 2004.
2. Th. Leibfried et al., "Profil von Wassergehalt und Polymerisationsgrad in der Feststoffisolation von Leistungstransformatoren, " in ETG Tagung Diagnostik elektrischer Betriebsmittel. Koeln, 2004.
3. A. De Pablo and B. Pahlavanpour, "Furanic compounds analysis: Maintenance of oil-filled electrical equipment," Electra, no. 175, pp. 9-31, 1997.
4. A.J. Kachler and I. Hoehlein, "Aging of cellulose at transformer service temperatures. Part I: Influence of type of oil and air on the degree of polymerization of pressboard, dissolved gases, and furanic compounds in oil," IEEE Elect. Insul. Mag., vol. 21, no. 3 (Mar./Apr.), pp. 15-21, 2005.
5. I. Hoehlein, A.J. Kachler, M. Stach, S. Tenbohlen, and Th. Leibfried, "Transformer life management, German experience with condition assessment," Contribution for CIGRE SC12/A2, Merida Colloquium, June 2-4, 2003.
6. H.P. Moser and V. Dahinden in Transformerboard II. H. Weidmann AG, Rapperswill, 1987.
7. I. Hoehlein and A.J. Kachler, "Progress in transformer aging research. Impact of moisture on DP of solid insulation and furan development in oil at transformer service temperatures," presented at CIGRE Session, Paris, 2004, D1-309.
8. H. Luetke, I. Hoehlein, and A.J. Kachler, "Transformer aging research on furanic compounds dissolved in insulating oil", CIGRE 2002, SC15, paper 15-302.
9. M.C. Lessard, to be published.
10. J. Scheirs, G. Camino, M. Avidano, and W. Tumiatti, "Origin of furanic compounds in thermal degradation of cellulosic insulating paper," J. Appl. Polymer Sci., vol. 69, pp. 2541-2547, 1998.
11. Sokolov, "How to extend the life of power transformers," presented at CIGRE TF D1.01.10 IWD 93, 2003.