INTERNAL ABNORMALITY DIAGNOSIS METHOD OF OIL-FILLED TRANSFORMER

摘要

PROBLEM TO BE SOLVED: To provide a method capable of performing internal abnormality/deterioration diagnosis of a transformer inexpensively with high sensitivity.SOLUTION: By using a plurality of sensors that are not selective for one kind of gas, and calculating measurement results of each sensor, the concentration of a target gas that is a target of internal abnormality and deterioration diagnosis of the transformer is obtained.SELECTED DRAWING: None