Design and test experience with natural ester fluid for power transformers update

Author

Smith, S.D. ; Beaster, Barry L.

fYear

2009

Firstpage

1

Lastpage

3

Abstract

Natural Ester seed oil is a biodegradable fluid that is increasingly being used as a replacement for mineral oil and for high temperature flashpoint liquids, including silicone and RTEMP. Considerable studies have been conducted to investigate heat aging performance of cellulose, electrical contact, thermal stability, dielectric strength, moisture sensitivity, and cold temperature performance. A series of reports presents a summary of work that has been completed to date and examines initial customer experience with the use of natural esters in real transformers. The work updated from 2006 contains both new transformers and retro-fills in distribution and power transformers as well as step voltage regulators and switchgear.

Keywords

ageing; biodegradable materials; electric strength; electrical contacts; power transformer insulation; power transformer testing; thermal stability; transformer oil; biodegradable fluid; cellulose; cold temperature performance; dielectric strength; electrical contact; heat aging performance; moisture sensitivity; natural ester seed oil; power transformer testing; thermal stability; Aging; Biodegradable materials; Contacts; Liquids; Minerals; Petroleum; Power transformers; Resistance heating; Temperature sensors; Testing; High flashpoint; Natural ester fluids; biodegradable; coke-resistant; longer life;

fLanguage

English

Publisher

ieee

Conference_Titel

Power & Energy Society General Meeting, 2009. PES '09. IEEE

Conference_Location

Calgary, AB

ISSN

1944-9925

Print_ISBN

978-1-4244-4241-6

Type

conf

DOI

10.1109/PES.2009.5275168

Filename

5275168