TY - JOUR

T1 - Preliminary investigations for the retrofilling of Perchlorethylene based fluid filled transformer

AU - Fofana, I.

AU - Wasserberg, V.

AU - Borsi, H.

AU - Gockenbach, Ernst

N1 - Funding information: The authors would like to thank the Erdolchemie GmbH, Cologne, Germany for its interest in this work, for providing financial support and materials. Also thanks to the Alexander von Humboldt foundation for providing fellowship to Dr. Fofana.

PY - 2002/2

Y1 - 2002/2

N2 - The main results from investigations aiming into the retrofilling conditions of a Transclene (Perchlorethylene based liquid) filled transformer are presented. The investigations were carried out on insulating liquids with less environmental risks than perchorethylene (Perc) but of almost similar electrical properties which were a mineral based transformer oil and a synthetic ester liquid. Also the influence of a small detachment of hydrochloric acid (HCl), which could be formed by Perc and water during operation is discussed. It has been generally acknowledged, that the life of an insulating liquid in service depends primarily on its initial quality, but service conditions need to be considered too. Additionally, the influence of aging was investigated. A comparison of the measured data with the pre-determinations of the relevant standards and the consequences for the use of the mixtures in transformers are presented.

AB - The main results from investigations aiming into the retrofilling conditions of a Transclene (Perchlorethylene based liquid) filled transformer are presented. The investigations were carried out on insulating liquids with less environmental risks than perchorethylene (Perc) but of almost similar electrical properties which were a mineral based transformer oil and a synthetic ester liquid. Also the influence of a small detachment of hydrochloric acid (HCl), which could be formed by Perc and water during operation is discussed. It has been generally acknowledged, that the life of an insulating liquid in service depends primarily on its initial quality, but service conditions need to be considered too. Additionally, the influence of aging was investigated. A comparison of the measured data with the pre-determinations of the relevant standards and the consequences for the use of the mixtures in transformers are presented.

UR - http://www.scopus.com/inward/record.url?scp=0036475604&partnerID=8YFLogxK

U2 - 10.1109/94.983892

DO - 10.1109/94.983892

M3 - Article

AN - SCOPUS:0036475604

VL - 9

SP - 97

EP - 103

JO - IEEE Transactions on Dielectrics and Electrical Insulation

JF - IEEE Transactions on Dielectrics and Electrical Insulation

SN - 1070-9878

IS - 1

ER -