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The Development of Portable Rotor Bar Fault Diagnosis System for Three Phase Small Induction Motors Using LabVIEW  

Song, Myung-Hyun (순천대 전기제어공학과)
Park, Kyu-Nam (순천대 전기제어공학과)
Han, Dong-Gi (순천대 전기제어공학과)
Lee, Tae-Hun (순천대 전기제어공학과)
Woo, Hyeok-Jae (순천대 전기제어공학과)
Publication Information
The Transactions of the Korean Institute of Electrical Engineers P / v.56, no.1, 2007 , pp. 51-55 More about this Journal
Abstract
In this paper, a portable rotor bar fault diagnosis system for small 3 phase induction motors is suggested. For portable real-tine diagnosis system, an USB-DAQ board for collecting the 3 phase current data, three current probes, and a notebook computer are used. The LabVIEW graphical language is used for filtering, analysis, storing, and monitoring the current data. The three phase stator current are filtered and transformed to frequency level by FIT. An analysis window programed by LabVIEW is located in front panel to show the FIT results and this suggested window has a zooming function to detect the fault feature more easily near the feature frequency range which is varying by the slip frequency. To show the possibility of portable rotor bar diagnosis system, three types(healthy, one rotor bar fault, two rotor bar fault) of rotor bar are intentionally prepared and compared by the suggested window of front panel. Experimental results are shown that a suggested diagnosis system is applicable to portable diagnosis system and the rotor bar fault is detected by the frequency window in front panel programed in LabVIEW graphical language.
Keywords
Small induction motor; USB-DAQ board; LabVIEW; FFT; Portable real-tine diagnosis system;
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