Title :
Diagnosis of EHV and HV Transformers Through an Innovative Technique: Perspectives for Asset Management
Author :
Cavallini, Andrea ; Montanari, Gian Carlo ; Ciani, Fabio
Author_Institution :
Dept. of Electr. Eng., Univ. Bologna, Bologna
Abstract :
The application to power transformers of a novel system for partial discharge detection and analysis is presented in this paper. The system exploits the diversity of partial discharge pulses to separate phenomena relevant to disturbance and/or multiple sources. By this way, measurement data can be treated in a way that allows accurate diagnostic results to be obtained. Besides signal processing tools, this system is also endowed with automatic identification routines that have been specialized for paper/oil insulated systems. Working cases are presented to show the effectiveness of the proposed system.
Keywords :
partial discharge measurement; power transformer insulation; transformer oil; EHV-HV transformer diagnosis; asset management; automatic identification routines; paper-oil insulated system; partial discharge measurement; Asset management; Dissolved gas analysis; Frequency; Insulators; Oil insulation; Partial discharges; Petroleum; Power cables; Power transformers; Pulse transformers;
Conference_Titel :
Electrical Insulation, 2008. ISEI 2008. Conference Record of the 2008 IEEE International Symposium on
Conference_Location :
Vancouver, BC
Print_ISBN :
978-1-4244-2091-9
Electronic_ISBN :
1089-084X
DOI :
10.1109/ELINSL.2008.4570331
