Title :
Transformer monitoring using the UHF technique
Author :
Judd, M.D. ; Pryor, B.M. ; Kelly, S.C. ; Hampton, B.F.
Author_Institution :
Strathclyde Univ., Glasgow, UK
Abstract :
The viability of applying UHF partial discharge monitoring techniques to an in-service oil-filled power transformer is established. Discharges in oil are shown to radiate the high frequency signals necessary to allow detection. On-site pulse injection is used to test the operation of a UHF coupler fitted to the transformer. The effects of on-load tap changing operations are also investigated
Keywords :
power transformer testing; 40 MVA; UHF coupler; UHF partial discharge monitoring; discharges; high frequency signals; oil-filled power transformer; on-load tap changing operations; on-site pulse injection; transformer monitoring;
Conference_Titel :
High Voltage Engineering, 1999. Eleventh International Symposium on (Conf. Publ. No. 467)
Conference_Location :
London
Print_ISBN :
0-85296-719-5
DOI :
10.1049/cp:19990959
