A novel approach to detect short circuits in low voltage induction motor by stray flux measurement

Author

Frosini, Lucia ; Borin, A. ; Girometta, L. ; Venchi, Giuseppe

Author_Institution

Dipt. di Ing. Ind. e dell´Inf., Univ. di Pavia, Pavia, Italy

fYear

2012

fDate

2-5 Sept. 2012

Firstpage

1538

Lastpage

1544

Abstract

This paper, after a detailed literature analysis, presents new results which show the actual possibility to detect inter-turn short-circuits in low voltage induction motors by means of measurements of the stray flux around the motor. With respect to the literature, some novelties are introduced: the use of different flux probes in different positions around the machine and the statistical evaluation of the experimental results. The effectiveness of the flux as diagnostic indicator has been compared to the motor current signal analysis (MCSA).

Keywords

induction motors; magnetic flux; magnetic variables measurement; short-circuit currents; diagnostic indicator; flux effectiveness; flux probes; inter-turn short-circuit detection; low voltage induction motor; stray flux measurement; Circuit faults; Coils; Harmonic analysis; Induction motors; Probes; Stator windings; Induction motors; condition monitoring; fault diagnosis; magnetic flux leakage; short circuit currents;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Machines (ICEM), 2012 XXth International Conference on

Conference_Location

Marseille

Print_ISBN

978-1-4673-0143-5

Electronic_ISBN

978-1-4673-0141-1

Type

conf

DOI

10.1109/ICElMach.2012.6350083

Filename

6350083