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Partial Discharge Measurements on Hydro Generator Stator Windings Case Studies

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2 Author(s)
Shunyuan Li ; British Columbia Hydro & Power Authority, Vancouver, BC ; Chow, J.M.Y.

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

Published in:

Electrical Insulation Magazine, IEEE  (Volume:23 ,  Issue: 3 )