In:
Zbornik radova Elektrotehnicki institut Nikola Tesla, Centre for Evaluation in Education and Science (CEON/CEES), Vol. 31, No. 31 ( 2021), p. 113-123
Abstract:
Most power transformer failures are associated with the presence of corrosive sulfur compounds in mineral insulating oil, of which dibenzyl disulfide (DBDS) is the best known and most widespread corrosive sulfur compound. The oil of failed transformers usually contained DBDS, a compound with a pronounced affinity for the formation of copper (I) sulfide (Cu2S). Copper (I) sulfide is a compound that does not dissolve in oil, conducts electricity, and can be deposited on the paper insulation or copper conductor of the transformer. Created conductive paths between the windings can initiate turn-to-turn breakdown and failure of the transformer. Several technological procedures have been developed as a solution to oil corrosivity. The application of desulfurization technology developed by the Electrical Engineering Institute "Nikola Tesla" enables the efficient removal of DBDS and aging products from mineral insulation oils.
Type of Medium:
Online Resource
ISSN:
0350-8528
,
2406-1212
Uniform Title:
Rešavanje problema eksploatacije transformatora sa korozivnim sumporom desulfurizacijom ulja primenom jake neorganske baze i organskog rastvarača
DOI:
10.5937/zeint31-34696
Language:
English
Publisher:
Centre for Evaluation in Education and Science (CEON/CEES)
Publication Date:
2021
detail.hit.zdb_id:
2921625-4
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