Partial Discharge Measurements on Hydro Generator Stator Windings Case Studies

Author

Li, Shunyuan ; Chow, Jennifer M Y

Author_Institution

British Columbia Hydro & Power Authority, Vancouver, BC

Volume

23

Issue

3

fYear

2007

Firstpage

5

Lastpage

15

Abstract

The use of PD analysis to identify insulation problems allows for the planning of corrective measures when it is most cost efficient for the power system. In this article, case studies of four dominant PD activity types in generator stator windings are presented, including measurements and data analysis. The PD analysis is considered the PD pattern, polarity predominance, and PPA in correlation with visual inspections and high-voltage testing. The four cases of PD were presented in the article

Keywords

data analysis; hydroelectric generators; inspection; machine insulation; machine testing; partial discharge measurement; PD analysis; PD pattern; PPA; data analysis; high-voltage testing; hydro generator; insulation problems; partial discharge measurements; polarity predominance; pulse phase analysis; stator windings; visual inspections; Costs; Data analysis; Insulation; Partial discharge measurement; Partial discharges; Power measurement; Power system analysis computing; Power system measurements; Power system planning; Stator windings;

fLanguage

English

Journal_Title

Electrical Insulation Magazine, IEEE

Publisher

ieee

ISSN

0883-7554

Type

jour

DOI

10.1109/MEI.2007.369456

Filename

4225267