Badania sprawności silnika indukcyjnego zasilanego przekształtnikowo w układach małejmocy

摘要

The paper presents the measurement results of the efficiency of an induction motor, the new high efficiency class IE2 based on the directefficiency measurement. For comparison purposes, the motor under test was fed by both a programmable three-phase AC power source anda frequency converter under the same conditions. The influence of the non-sinusoidal feeding and the harmonic power on the motor efficiencydecreasing was investigated. T-model of the induction motor was used for computer simulations.