Title :
Impedance Characterization of Hydro Generator Stator Windings and Preliminary Results of FRA Analysis
Author :
Lamarre, L. ; Picher, P.
Author_Institution :
IREQ, Varennes, QC
Abstract :
Experimental investigations of the frequency response of the impedance of hydro generator windings are reported. The impedance was measured in both series and parallel mode over a frequency range of 10 Hz to 1 MHz. Measurements on the phase end and the neutral end are compared. The possibility of increasing service life by means of neutral/phase end reversal on old machines is discussed.
Keywords :
electric impedance measurement; frequency response; hydroelectric generators; machine testing; stators; electric impedance measurement; frequency 10 Hz to 1 MHz; frequency response analysis; hydroelectric generators; neutral end reversal; phase end reversal; service life extension; stator windings; Character generation; Frequency measurement; Frequency response; Impedance measurement; Instruments; Phase measurement; Power transformer insulation; Stator windings; Testing; US Department of Transportation;
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.2008.4570316
