Transformers Magazine, Vol. 2 No. 1, 2015.
Original scientific paper
Significance of CO2/CO ratio in dissolved gas analysis
Mladen Banović
; Transformers Magazine
P Ramachandran
; ABB
Navin Rego
; Kahramaa
Pavel Justiz
; ORGREZ
Abstract
According to the literature, the ratio of carbon dioxide and carbon monoxide (CO2/CO) for a transformer with a healthy cellulose insulation system should be between 3 and 11. If results of the dissolved gas analysis (DGA) of oil from transformers in service give the ratio value of CO2/CO less than 3, it means that the cellulose insulation is degrading rapidly. What is the meaning of this ratio if it is high; say greater than 15 or 20?
Keywords
carbon monoxide; carbon dioxide; ratio; dissolved gas analysis
Hrčak ID:
182921
URI
Publication date:
8.1.2015.
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