Determination of copper in liquid and solid insulation for large electrical equipment by ICP-OES. Application to copper contamination assessment in power transformers.

@article{Bruzzoniti2012DeterminationOC,
  title={Determination of copper in liquid and solid insulation for large electrical equipment by ICP-OES. Application to copper contamination assessment in power transformers.},
  author={Maria Concetta Bruzzoniti and Rosa Maria De Carlo and Corrado Sarzanini and Riccardo Maina and Vander Tumiatti},
  journal={Talanta},
  year={2012},
  volume={99},
  pages={703-11}
}
Copper is one of the main constituents of the components in power transformers and its presence both in liquid (mineral oil) and in solid (Kraft paper) insulators can lead to enhanced dielectric losses and to the subsequent deterioration of their insulating properties. Recently the latter have been correlated to plant failures which in turn may have severe impact on the environment. This paper describes the direct analysis of copper in insulating mineral oil by ICP-OES and how it was first… CONTINUE READING