The detection of broken rotor bars in three-phase squirrel cage induction motors by means of current signature analysis is presented. In order to diagnose faults, a Neural Network approach is used. At first the data of different rotor faults are achieved. The effects of different rotor faults on current spectrum, in comparison with other fault conditions, are investigated via calculating Power ...

Condition monitoring and protection methods based on the analysis of the machine's current are widely used according to non-invasive characteristics of current transformers. It should be noted that, these sensors are installed by default in the machine control center. On the other hand, condition monitoring based on mathematical methods has been proposed in literature. However, they are model b...

Stator interturn faults are one of the most common faults occurring in induction motors. Early detection of interturn short circuit is important to reduce repair costs. Axial leakage monitoring, zero-sequence components, negative sequence current, and motor current signature analysis have been used for fault detection in early states. In the paper, the instantaneous power signature analysis tec...

Resumen. Los motores de inducción actualmente son la máquina más ampliamente usada en el campo industrial, por su robustez y fácil instalación. Es por eso que la detección de fallas toma un papel importante para un correcto mantenimiento y por consecuente el alargamiento de la vida útil del motor. Una de las principales técnicas existentes para la detección de fallas en motores de inducción es ...

Stator faults typically have a significant share amongst the common type of faults in industrial three-phase induction (asynchronous) motors. This paper presents a motor current signature analysis (MCSA)-based diagnostics of the stator winding short circuit fault. This type of fault happens due to the destruction of the turn insulation, and can be very detrimental causing motor shutdown. Instea...

In rotary-percussion drilling, the impact frequency is a crucial variable that closely linked to operational factors determine efficacy of drilling process, such as rate penetration, bit wear, and rock mass characteristics. Typical identification methods rely on complex simulation models or analysis different sensor signals installed specially adapted setups, which are difficult be implemented ...

The induction motor is one of the most used electric machines in the industry because of its strong and simplicity. This paper investigates the performance of conventional techniques such as sideband analysis in detecting broken rotor bars when the motor is fed from a common pulse width modulation voltage source inverter PWM‐VSI drive for variable speed drives. The phase current signals are obt...