Determinação de ascarel em óleo isolante de transformadores

Química Nova

Izoldir Antonello¹  Eduardo Humeres¹  Ivan Gonçalves De Souza¹  Nito Angelo Debacher¹  Alexandre Rios Martins² 

[1] ,Universidade Federal de Santa Catarina Departamento de Química Florianópolis SC ,Brasil

关键词: ascarel;    PCBs;    dechlorination;   

DOI  :  10.1590/S0100-40422007000300034

来源: SciELO

【 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】

CC BY-NC   
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