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Experimental Investigation of Temperature Effect on Corrosive Sulfur Formation in Transformers
King Fahd Univ Petr & Minerals, Saudi Arabia.
King Fahd Univ Petr & Minerals, Saudi Arabia.
Linnaeus University, Faculty of Technology, Department of Mechanical Engineering.
Saudi Elect Co, Saudi Arabia.
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2017 (English)In: IEEE transactions on dielectrics and electrical insulation, ISSN 1070-9878, E-ISSN 1558-4135, Vol. 24, no 5, p. 3201-3206Article in journal (Refereed) Published
Abstract [en]

This paper presents experimental findings of the effect of temperature on corrosive sulfur formation in transformers. To conduct the experimental study, new transformer oil was randomly selected and heated at 40, 60, 80, 120, and 150 degrees C temperature for 72 hours each along with copper strips wrapped with insulation paper and immersed in oil in accordance with IEC-62535 standard test covered conductor deposition (CCD). The oil, copper strips, and the insulation paper samples were evaluated using gas chromatography-sulfur chemiluminescence detector (GC-SCD), X-ray fluorescence spectroscopy (XRF), inductively coupled plasma optical emission spectrometry (ICP), and scanning electron microscopy (SEM) tests after 72 hours exposure at each temperature. The values so obtained, were analyzed and effect of temperature on various parameters was studied individually and as well as collectively. It was found that temperature plays an important role on corrosive sulfur formation process inside the transformers and hence the temperature of the oil should be kept within the allowed operating ranges for avoiding unforeseen failures.

Place, publisher, year, edition, pages
IEEE, 2017. Vol. 24, no 5, p. 3201-3206
Keywords [en]
Corrosive sulfur, copper strip and wire, copper sulfide, thermal aging, insulation paper, power transformer
National Category
Electrical Engineering, Electronic Engineering, Information Engineering Mechanical Engineering
Research subject
Technology (byts ev till Engineering), Mechanical Engineering
Identifiers
URN: urn:nbn:se:lnu:diva-69775DOI: 10.1109/TDEI.2017.006024ISI: 000417788000061OAI: oai:DiVA.org:lnu-69775DiVA, id: diva2:1173487
Available from: 2018-01-12 Created: 2018-01-12 Last updated: 2018-01-12Bibliographically approved

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Jadim, Ramsey

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