Rotating electrical machines play an important role in the world’s industrial life. Hence there is a strong demand on their reliable and safe operation. Their faults and failures can lead to excessive downtimes and generate enormous costs in reduced output, emergency maintenance and lost revenues. Therefore the fault detection methods of electrical machines are of real interest. For the rotor f...

This paper deals with a complete finite-element analysis procedure for squirrel cage induction motors, including the presence of skewing and iron losses evaluation. The machine is analyzed performing only magneto-static finite element analyses. Saturation phenomena are carefully considered in any operating condition, avoiding long time-stepping synergy between analytical model leads to rapid pr...

This work shows the results obtained from studying influence of equivalent circuit resistances on three-phase induction motors. The stator resistance, rotor and iron losses resistance affect different motor operating variables (output power, current, speed, power factor, starting ratios, maximum torque). These influences have been quantified, paying particular attention to affected their impact...

Wound rotor induction motors are used in a certain number of industrial applications due to their interesting advantages, such as the possibility inserting external rheostats series with winding enhance torque characteristics under starting and decrease high inrush currents. However, more complex structure winding, compared cage motors, is source for potential maintenance problems. In this rega...

Received Mei 9, 2017 Revised Jun 20, 2017 Accepted Jul 27, 2017 The Squirrel Cage Induction motor(SCIM) with advanced power electronic inverters presents the greater advantages on cost and energy efficiency as compared with other industrial solutions for varying speed applications. In recent, the inverter fed induction motors are being popular in the industries. These inverter fed-motors are re...

This paper presents a novel approach based on the loci of instantaneous symmetrical components called “Wing Shape” which requires the measurement of three input stator currents and voltages to diagnose interturn insulation faults in three phase induction motors operating under different loading conditions. In this methodology, the effect of unbalanced supply conditions, constructional imbalance...