Time-dynamic oxidation stability studies of mineral insulating oils

Author

Wiklund, Per ; Karlsson, Chatleen

Author_Institution

Tech. Market Support/Electr. Ind., Nynas AB, Nynäshamn, Sweden

fYear

2011

fDate

26-30 June 2011

Firstpage

1

Lastpage

4

Abstract

IEC 61125C, a traditional oxygen-rich material test for determination of oxidation stability of insulating oils, was modified to give continuous data over the entire testing time by application of a logging pH-meter. A complementary oxygen-poor testing method, which may be more relevant to certain power transformer designs, was also developed further. The methods give insight into the chemistry and dynamics of oil oxidation, and may serve as a future means to investigate insulating oil behavior and support development of high performance insulating oils.

Keywords

materials testing; oxidation; transformer oil; IEC 61125C standard; complementary oxygen-poor testing method; logging pH-meter application; mineral insulating oil; oxygen poor condition; oxygen rich condition; oxygen-rich material test; power transformer design; time-dynamic oxidation stability study; Electron tubes; IEC standards; Oils; Oxidation; Power transformers; Temperature measurement; Oxidation stability; insulating oil;

fLanguage

English

Publisher

ieee

Conference_Titel

Dielectric Liquids (ICDL), 2011 IEEE International Conference on

Conference_Location

Trondheim

ISSN

2153-3725

Print_ISBN

978-1-4244-7352-6

Electronic_ISBN

2153-3725

Type

conf

DOI

10.1109/ICDL.2011.6015164

Filename

6015164