Order Publications

Reference: ISH2015_181

Type:
ISH Collection
Title:

BENEFICIAL EFFECT OF NATURAL ESTER FLUIDS FOR LIFETIME EXTENSION OF TRANSFORMERS

 

Abstracts

The environmental loading reduction due to the leakage of the electric insulating oil and the carbon dioxide emissions reduction are recent problems to be solved for the protection of the environment. The studies on the practical use of the natural ester dielectric fluids (vegetable oils) have been performed actively as these countermeasures. This paper presents the experimental results on the aging stability of an insulating paper in rapeseed oil, which has investigated by a heat-accelerated test in the range 90 to 120 ?C in comparison with that in mineral oil. The insulating paper is immersed in the sample oil-filled glass bottle which air gas is flowed in its upper space, and it is taken out after a certain time. A heat-accelerated aging is evaluated by examining the deterioration speed of insulating papers which is decided by measuring the remnant degree of polymerization values in each insulating paper. Consequently, it is indicated that the deterioration speed of insulating paper can be suppressed in rapeseed oil rather than mineral oil under the dry condition. These results reveal that not only improve the transformer lifetime, but they also are related to the miniaturization of transformer size under the higher temperature design.
 

File Size: 811,1 KB

Year: 2015

 
 
 
Download
Member
FREE free
Non member
FREE free
 

Your AccountYour Account

Password forgotten

Members

may download free of charge all publications including most recent ones


Non Members

may download free of charge publications over three years old and purchase all publications

ContactContact

For any questions in connection with the on-line library, contact:


Publications and Editions Manager

publications@cigre.org