Ascarel determination in insulating oil of transformers

Quimica nova

Martins, Alexandre Rios¹  Souza, Ivan Gonçalves de²  Debacher, Nito Angelo²  Antonello, Izoldir²  Humeres, Eduardo² 

[1] Centrais Elétricas de Santa Catarina, Palhoça, Brasil;Universidade Federal de Santa Catarina, Florianópolis, Brasil

关键词: ascarel;    PCBs;    dechlorination.;   

DOI  :  10.1590/S0100-40422007000300034

学科分类：化学（综合）

来源: Sociedade Brasileira de Quimica

【 摘 要 】

The contaminationlevel of silicon oil used as insulation liquid in high-voltage transformersby ascarel (PCBs) is above those permitted by the Brazilian law. Thus new techniquesable to detect ascarel, with low operational costs, are very attractive.The present work proposes an analysis of the contamination levels of siliconoil using the following techniques: naphthalene anion radical reaction for ascareldechlorination; and potentiometry with an ion-selective electrode for chlorideion determination. The data obtained with the proposed methodology agree wellwith those from the official methodology, (method IEC 61619).

【 授权许可】

CC BY