Ascarel determination in insulating oil of transformers

Química Nova

Souza, Ivan Gonçalves de¹  Universidade Federal de Santa Catarina, Florianópolis, Brasil¹  Centrais Elétricas de Santa Catarina, Palhoça, Brasil¹  Debacher, Nito Angelo¹  Antonello, Izoldir¹  Humeres, Eduardo¹  Martins, Alexandre Rios¹ 

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

【 授权许可】

Unknown