Title :
PD analysis of rotating AC machines
Author :
Contin, A. ; Rabach, G.
Author_Institution :
Trieste Univ., Italy
fDate :
12/1/1993 12:00:00 AM
Abstract :
The problem of the interpretation of partial discharge (PD) measurements is approached by means of the shape analysis of PD amplitude distributions. Experimental cumulative PD distributions, detected insulation systems of HV rotating machine stator windings, are plotted on a Weibull graph in order to identify multiple PD sources. Examples of the application of PD distribution shape analysis as a diagnostic tool for AC HV stator insulation systems are presented and discussed. The calibration procedure and the significance of average parameters for degradation inference are reviewed
Keywords :
AC machines; calibration; high-voltage techniques; insulation testing; machine insulation; machine testing; partial discharges; stators; AC HV stator insulation systems; HV machine stator windings; PD amplitude distributions; PD analysis; Weibull graph; calibration procedure; cumulative PD distributions; diagnostic tool; electric machines; multiple PD sources; partial discharge measurements; rotating AC machines; shape analysis; AC machines; Acoustic measurements; Calibration; Degradation; Fault location; Insulation; Partial discharges; Rotating machines; Shape measurement; Stator windings;
Journal_Title :
Electrical Insulation, IEEE Transactions on
