Development and Validation of Estimation of Breakdown Voltage of Stator Windings of Generator From Partial Discharge Magnitude

• Published in: Electrical engineering in Japan Vol. 218; no. 1
• Main Authors: Nakamura, Shin, Kanegami, Masaki, Kuraishi, Takashi, Miyazaki, Satoru
• Format: Journal Article
• Language: English
• Published: Hoboken Wiley Subscription Services, Inc 01.03.2025
• Subjects: Breakdown; breakdown voltage; Coils (windings); Dielectric barrier discharge; Dielectric strength; Electric potential; Electrical engineering; Estimation; generator; Insulation; insulation diagnosis; Monte Carlo simulation; partial discharge magnitude; Sampling; sampling survey; Stators; Voltage; Winding

ABSTRACT For the insulation diagnosis of stator windings of generators, sampling surveys are conducted on the coils to estimate the dielectric strength of the stator winding. Previous research has relied on inferring the breakdown voltage of the stator winding from the value 3σ away from the mean va...