Partial discharge diagnosis of stator insulation using damped AC voltages

Gulski, E.; Meijer, S; van Breen, HJ; Seitz, PP; de Vries, F; Petzold, F

Partial discharge diagnosis of stator insulation using damped AC voltages

Conference paper (2006)

Authors

E. Gulski

S Meijer

HJ van Breen External organisation

PP Seitz External organisation

F de Vries External organisation

F Petzold External organisation

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Published Date

2006

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Abstract

In searching process for new, advanced technologies which could be applied for on-site diagnostics of machine insulation this paper discuses the application of damped AC voltages to detect and to analyze the PD processes. Based on laboratory investigation on a full scale stator insulation system, as well as during field inspections on large motors, a comparison of PD behavior: the PD inception conditions and PD levels at 50Hz AC stresses and damped AC stresses has been performed. The applicability of PD detection at damped AC voltage has been discussed.

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