A novel approach for broken rotor bar detection in cage induction motors

Author

Milimonfared, J. ; Kelk, H. Meshgin ; Der Minassians, A. ; Nandi, S. ; Toliyat, H.A.

Author_Institution

Dept. of Electr. Eng., Amirkabir Univ. of Technol., Tehran, Iran

Volume

1

fYear

1998

fDate

12-15 Oct. 1998

Firstpage

286

Abstract

A new approach has been proposed in this paper to detect broken rotor bars in induction motors. The motor is disconnected from the supply; and the induced voltage in the stator due to only rotor flux is utilized to detect the fault, If there is any broken bar, it will directly affect the induced voltages in the stator windings. Using this approach the effects of source nonidealities (such as unbalance, presence of time harmonics, etc.) and nonlinearity of machine magnetizing characteristics due to saturation can be avoided.

Keywords

fault location; magnetic flux; magnetisation; rotors; squirrel cage motors; stators; broken rotor bar detection; cage induction motors; magnetizing characteristics nonlinearity; rotor flux; saturation; source nonidealities; stator induced voltage; Bars; Fault detection; Induction motors; Magnetic flux; Residual stresses; Rotors; Saturation magnetization; Stator windings; Thermal stresses; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Industry Applications Conference, 1998. Thirty-Third IAS Annual Meeting. The 1998 IEEE

Conference_Location

St. Louis, MO, USA

ISSN

0197-2618

Print_ISBN

0-7803-4943-1

Type

conf

DOI

10.1109/IAS.1998.732308

Filename

732308