Pulse propagation in rotating machines and its relationship to partial discharge measurements

Author

Zhu, H. ; Kemp, I.J.

Author_Institution

Sch. of Eng., Glasgow Polytech., UK

fYear

1992

fDate

7-10 Jun 1992

Firstpage

411

Lastpage

414

Abstract

An investigation of the pulse propagation characteristics of motor stator windings is reported. The results indicate the effects of electrical and physical length and pulse risetime on the propagation characteristics. They explain the observed phenomena and place them in the context of partial discharge measurement techniques as used to assess the integrity of solid insulating systems of a high-voltage rotating plant. Such assessments can only be correct if the discharge measurements on which they are based are accurate. The results indicate that these measurements are often not as accurate as may be assumed

Keywords

electric motors; insulation testing; machine testing; partial discharges; stators; high-voltage rotating plant; integrity; motor stator windings; partial discharge measurements; pulse propagation characteristics; rotating machines; solid insulating systems; Degradation; Detectors; Insulation; Partial discharge measurement; Partial discharges; Pulse measurements; Rotating machines; Rotation measurement; Solids; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Insulation, Conference Record of the 1992 IEEE International Symposium on

Conference_Location

Baltimore, MD

ISSN

1089-084X

Print_ISBN

0-7803-0649-X

Type

conf

DOI

10.1109/ELINSL.1992.246970

Filename

246970