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- W2108772677 endingPage "4570" @default.
- W2108772677 startingPage "4557" @default.
- W2108772677 abstract "In this paper, a new method for detecting the presence of broken rotor bars is presented. The proposed approach is valid for induction machines started at constant frequency and consists of extracting the instantaneous frequency (IF) of the left sideband harmonic (LSH) from the start-up current (LSHst), via the Hilbert transform. It is shown that, in the case of machines with one or several broken bars, the IF of the LSHst exhibits a very characteristic and easy to identify pattern, which is physically justified. This paper also shows that, if the IF of the LSHst is represented against the slip, a universal fault indicator (nondependent neither on the machine characteristics nor on the starting conditions) can be defined. This fault indicator consists of the correlation between the experimental IF of the LSHst and its theoretical evolution. This approach is theoretically introduced and experimentally validated by testing a commercial motor in faulty and healthy conditions, under different operating conditions." @default.
- W2108772677 created "2016-06-24" @default.
- W2108772677 creator A5023337001 @default.
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- W2108772677 creator A5049320170 @default.
- W2108772677 creator A5066633137 @default.
- W2108772677 creator A5081388035 @default.
- W2108772677 creator A5083274978 @default.
- W2108772677 date "2009-11-01" @default.
- W2108772677 modified "2023-09-29" @default.
- W2108772677 title "Instantaneous Frequency of the Left Sideband Harmonic During the Start-Up Transient: A New Method for Diagnosis of Broken Bars" @default.
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