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The multi-machines system is intensively used in several industrial applications. When a fault occurred in one machine, it is very difficult to identify which one is affected by the fault. Therefore, this paper presents an efficient method to locate the faulty machine in dual induction motors supplied by a single inverter. The treated system is composed by two induction motors fed by a PWM voltage...
This paper deals with the resistive losses in the deep-bar induction motor fed by a PWM inverter. The effect of harmonics from the inverter on the resistive losses of the induction motor is investigated by varying the amplitude or phase of the harmonics. The investigation is performed on 45 kW and 1250 kW induction motors. The equivalent circuit of the deep-bar induction motor is presented and used...
Induction motors are most popularly used in modern day industrial drives. Under operating stresses and ageing, both stator and rotor of an induction motor undergoes degradation. It is necessary to properly assess the condition of motors on operation for reliable performance. Popularly employed technique for motor condition monitoring is the motor current signature analysis (MCSA) that deals with frequency...
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