Title :
New apparatus for detecting transformer faults online
Author :
Dengming, Xiao ; Honglei, Li ; Xuguang, Li
Author_Institution :
Shanghai Jiaotong Univ., China
Abstract :
A new diagnostic apparatus for online detecting gases dissolved in transformer oil is described, in which polytetrafluoroethylene membrane with microholes is used to separate H2, CO, CH4, C 2H2, C2H4 and C2H 6 from the oil. Mixed gases are further separated to single gas by the multiple gas chromatograph columns, then they are detected with a new sensitive hot wire gas detector. The whole online chromatograph supervising system is inexpensive and proved to be useful in practice
Keywords :
chromatography; gas sensors; insulation testing; membranes; separation; transformer oil; chromatograph column; diagnostic apparatus; dissolved gas analysis; gas-oil separation; hot wire gas detector; on-line fault detection; polytetrafluoroethylene membrane; power transformer insulation; transformer oil; Biomembranes; Fault detection; Gas detectors; Gases; Oil insulation; Permeability; Petroleum; Polymers; Power transformer insulation; Temperature;
Conference_Titel :
Properties and Applications of Dielectric Materials, 2000. Proceedings of the 6th International Conference on
Conference_Location :
Xi´an
Print_ISBN :
0-7803-5459-1
DOI :
10.1109/ICPADM.2000.875692
