Induction machine diagnostics using zero sequence component

Author

Briz, Fernando ; Degner, Michael W. ; García, Pablo ; Dicz, A.B.

Author_Institution

Dept. of Electr. Comput. & Syst. Eng., Oviedo Univ., Gijon, Spain

Volume

1

fYear

2005

fDate

2-6 Oct. 2005

Firstpage

34

Abstract

Induction machine diagnostics using zero sequence components is presented in this paper. Electrical faults cause asymmetries in the phase impedances, producing a zero sequence voltage in wye-connected machines and a zero sequence current in delta-connected machines. The proposed measurement method identifies these well defined components in the zero sequence voltage/current and uses them to provide reliable information on the condition of the machine, with low sensitivity to the load level of the machine or variations in the phase voltage. The method can be used for the diagnosis of stator winding faults and broken rotor bars, and is valid both for line-connected and inverter-fed machines.

Keywords

asynchronous machines; electrical faults; fault diagnosis; invertors; rotors; stators; delta-connected machines; electrical faults; induction machine diagnostics; inverter-fed machines; phase impedances; rotor bars; stator winding faults; wye-connected machines; zero sequence components; zero sequence current; zero sequence voltage; Automotive engineering; Bars; Current measurement; Employee welfare; Fault detection; Impedance; Induction machines; Stator windings; Systems engineering and theory; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Industry Applications Conference, 2005. Fourtieth IAS Annual Meeting. Conference Record of the 2005

ISSN

0197-2618

Print_ISBN

0-7803-9208-6

Type

conf

DOI

10.1109/IAS.2005.1518288

Filename

1518288