Core loss measurements of three phase AC induction motor

Abstract

Core loss measurements at the field level for AC induction motor have been described. The standard requirements is the conventional no-load test to measure the “rotational losses” (sum of the core, friction & windage losses) and stator copper loss. Based on the no-load test several parameters such as the no load resistance, reactance, impedances as well as the per-phase magnetizing current and per-phase core loss current is obtained. Practical setup for loss measurements presented in this study.