On-line partial discharge measurement on the stator winding of large synchronous hydro-generators: main criteria applied in the management of such measurements and the presentation of the results

Author

Colombo, E. ; Tontini, G. ; Filie, A.

Author_Institution

ENEL-DSR-Centro di Ricerca Elettrica, Cologno Monzese, Italy

fYear

1992

fDate

7-10 Jun 1992

Firstpage

363

Lastpage

366

Abstract

The authors report on work in progress concerning online measurement of partial discharges (PDs) in the stator winding of large synchronous hydro-generators. To date, some 20 synchronous hydro-generators have been equipped with permanent couplers, and a program of online PD measurements is being carried out. The procedure followed in performing the measurement and the data acquisition system currently used are described. The basic criteria applied in processing the data acquired and presenting the measurement results are considered, and an example application is briefly discussed

Keywords

hydroelectric generators; insulation testing; machine insulation; machine testing; partial discharges; stators; synchronous generators; data acquisition system; large synchronous hydro-generators; online measurement; partial discharge measurement; permanent couplers; stator winding; Couplers; Current measurement; Data acquisition; Partial discharge measurement; Partial discharges; Performance evaluation; Stator windings; Steady-state; Temperature measurement; Testing;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Insulation, Conference Record of the 1992 IEEE International Symposium on

Conference_Location

Baltimore, MD

ISSN

1089-084X

Print_ISBN

0-7803-0649-X

Type

conf

DOI

10.1109/ELINSL.1992.246975

Filename

246975