Title :
A novel method of detecting insulation faults in power transformer
Author :
Chunyang Zhu;Hongjie Li;Yan Liu
Author_Institution :
Jiaotong University, Xi´an, China
Abstract :
This paper proposes a novel method of detecting insulation faults in power transformer based on damped oscillating voltage waves (DOVW). With reference to IEC60270, the insulation faults of a single-phase transformer are identified by the partial discharge (PD) signals. In this research, the PD signals were attained under two energizing methods individually. A comparison of PD behavior corresponding to the conventional AC 50 Hz energizing method and DOVW energizing method has been presented. Based on laboratory tests, detecting PD in power transformer by the DOVW is judged to be effective. This research enabled us to identify and prevent power transformer insulation damage in time.
Keywords :
"Insulation","Magnetomechanical effects","Current","Power transformer insulation","Energy measurement","Pulse measurements","Monitoring"
Conference_Titel :
Smart Grid and Clean Energy Technologies (ICSGCE), 2015 International Conference on
Print_ISBN :
978-1-4673-8732-3
DOI :
10.1109/ICSGCE.2015.7454280