The effect of pulsed voltages on dielectric material properties

Author

Bellomo, J.P. ; Castelan, P. ; Lebey, T.

Author_Institution

Lab. de Genie Electr., Univ. Paul Sabatier, Toulouse, France

Volume

6

Issue

1

fYear

1999

fDate

2/1/1999 12:00:00 AM

Firstpage

20

Lastpage

26

Abstract

The problem of premature failure of rotating machines fed by inverters appears to be of crucial importance. Understanding of the phenomena caused by this new type of supply on the stator insulation of motors provides enhanced reliability of the inverter/motor set. After identifying the stresses created by this type of device, a study of aging of the materials used as models, and subjected to similar stresses, is undertaken. For the voltage, rise time and frequency under study, the intrinsic part of the aging is studied. The results are presented and discussed according to the nature of the interaction existing between the electrical stress and the material properties

Keywords

ageing; failure analysis; impulse testing; insulation testing; machine insulation; reliability; stators; aging; dielectric material properties; electrical stress; premature failure; pulsed voltages; reliability; rise time; rotating machines; stator insulation; Aging; Dielectric materials; Dielectrics and electrical insulation; Frequency; Inverters; Material properties; Rotating machines; Stators; Stress; Voltage;

fLanguage

English

Journal_Title

Dielectrics and Electrical Insulation, IEEE Transactions on

Publisher

ieee

ISSN

1070-9878

Type

jour

DOI

10.1109/94.752005

Filename

752005