by A. Neettiyath, M. B. Alli, P. Hayden, N. J. Vasa, R. Sarathi and J. T. Costello
Abstract:
Spatially resolved and temporally integrated vacuum ultraviolet laser induced breakdown spectroscopy (VUV LIBS) was used for contaminant analysis in thermally aged oil impregnated pressboard (OIP) insulation material taken from high voltage transformers. The signature of copper sulphide contamination was obtained through detection of copper and sulphur emission lines. The plasma emission also contained highly ionized oxygen and carbon emission lines. In contrast to the UV-VIS spectral region, sulphur emission lines were found to be strong in the VUV region. The concentration of sulphur was found to increase with the duration of ageing of the OIP material.
Reference:
A. Neettiyath, M. B. Alli, P. Hayden, N. J. Vasa, R. Sarathi and J. T. Costello, “Vacuum ultraviolet laser induced breakdown spectroscopy for detecting sulphur in thermally aged transformer insulation material”, In Spectrochimica Acta Part B: Atomic Spectroscopy, vol. 163, pp. 105730, 2020.
Bibtex Entry:
@article{neettiyath_vacuum_2020,
	title = {Vacuum ultraviolet laser induced breakdown spectroscopy for detecting sulphur in thermally aged transformer insulation material},
	volume = {163},
	issn = {0584-8547},
	url = {http://www.sciencedirect.com/science/article/pii/S0584854719301843},
	doi = {10.1016/j.sab.2019.105730},
	abstract = {Spatially resolved and temporally integrated vacuum ultraviolet laser induced breakdown spectroscopy (VUV LIBS) was used for contaminant analysis in thermally aged oil impregnated pressboard (OIP) insulation material taken from high voltage transformers. The signature of copper sulphide contamination was obtained through detection of copper and sulphur emission lines. The plasma emission also contained highly ionized oxygen and carbon emission lines. In contrast to the UV-VIS spectral region, sulphur emission lines were found to be strong in the VUV region. The concentration of sulphur was found to increase with the duration of ageing of the OIP material.},
	language = {en},
	urldate = {2021-01-18},
	journal = {Spectrochimica Acta Part B: Atomic Spectroscopy},
	author = {Neettiyath, A. and Alli, M. B. and Hayden, P. and Vasa, N. J. and Sarathi, R. and Costello, J. T.},
	month = jan,
	year = {2020},
	keywords = {Copper sulphide, Laser induced breakdown spectroscopy, Oil impregnated pressboard, Vacuum ultraviolet},
	pages = {105730},
	file = {ScienceDirect Snapshot:C:\Users\abm50\Zotero\storage\PD8L8BRI\S0584854719301843.html:text/html}
}