Title :
Study of "code absence" in the IEC three-ratio method of dissolved gas analysis
Author :
Zhi-xiong Liu ; Bin Song ; En-wen Li ; Yuan Mao ; Guo-li Wang
Author_Institution :
Electr. Eng. Sch., Wuhan Univ., Wuhan, China
Abstract :
Most power transformers in the electrical power industry are oil filled, and insulation failure occurs when the oil-paper insulation system weakens to the extent that it can no longer support the high voltage connected to it. Dissolved gas analysis is a widely used method to detect incipient faults in oil-filled power transformers.
Keywords :
IEC standards; fault diagnosis; paper; power transformer insulation; transformer oil; IEC three-ratio method; code absence; dissolved gas analysis; electrical power industry; incipient fault detection; insulation failure; oil filled; oil-filled power transformer; oil-paper insulation system; Arc discharges; Dissolved gas analysis; Gases; Linear regression; Oil insulation; Partial discharges; Power transformers; code absence; dissolved gas analysis; insulating oil; power transformer;
Journal_Title :
Electrical Insulation Magazine, IEEE
DOI :
10.1109/MEI.2015.7303257
