Title :
A reliability model for dielectric damage to machine windings
Author :
Pierrat, Lambert
Author_Institution :
Electricite de France, Grenoble, France
Abstract :
Failure of electrical machine windings is caused by damage to the constituent insulating materials under electro-thermal and thermo-mechanical effects. Observation of results on machines and physical considerations tend to justify a Weibull-law type life duration model whose parameters are dependent on a simple functional criterion. The interpretation of the model and its parameter can lead to the improvement of existing models and open up new prospects as to the study of reliability in electrical machines
Keywords :
failure analysis; machine insulation; machine windings; reliability; statistical analysis; Weibull-law type; dielectric damage; electrical machine; electrothermal effects; functional criterion; insulating material damage; life duration model; machine windings; reliability model; thermomechanical effects; windings failure; Dielectric devices; Dielectrics and electrical insulation; Machine windings; Machinery; Predictive models; Production; Synchronous generators; Synchronous motors; Thermomechanical processes; Voltage;
Conference_Titel :
Electrical Insulation, 1990., Conference Record of the 1990 IEEE International Symposium on
Conference_Location :
Toronto, Ont.
DOI :
10.1109/ELINSL.1990.109776
