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Author: search.filters.author.Manop, ChalermchatSubject: search.filters.subject.Induction motor

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    Stator faults detection based on the dq0 voltage components
    (2008-10-30)
    Manop, Chalermchat
    ;
    Kinnares, Vijit
    This paper presents the technique for detection of shorted turns in stator winding of induction motors. The strategy is based on the dq0 voltage components. The proposed technique determines dq components of time domain of harmonics obtained from Park transformation instead of the stator phase voltage. Zero component (0) is calculated from the fundamental voltage excitation only. In the testing, the supply is sinusoidal waveform and the motor must be star connected with floating neutral. From experimental results, pattern of dq0 voltage components in order to use for the stator faults detection is possible. ©2008 IEEE.
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    A low cost prototype for testing stator winding shorted turns in 3-phase induction motors
    (2005-12-01)
    Manop, Chalermchat
    ;
    Senavongse, Wongwit
    ;
    Kinnares, Vijit
    ;
    Tangsiriworakul, Chanwit
    This paper presents a prototype of stator winding shorted turns detector for three-phase induction motors. The focus condition is turn-to-turn short circuit, because this condition is the initial problem. The diagnosis technique is detectable from the voltage sum of the three instantaneous line to star-point voltage. In the testing, the supply is sinusoidal waveform and the motor must be star connected with floating neutral. Before diagnosis, this instrument will also determine the level of supply voltage imbalance, if it is over the limit, the test instrument will not diagnose shorted turns. From experimental results, 3-hp and 5-hp induction motors were used for testing this equipment which is capable of accurately identifying percentage of stator winding shorted turns. © 2005 IEEE.