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Pastoralist households in the Andes have always had to cope with climate uncertainty. Recently, however, due to a combination of a weak asset base, large inequalities in land and livestock access, and the prevalence of multiple non-climate-related stressors, they are being pushed beyond their range of adaptability. However, the complex, forward-looking and site-specific features of these adaptation...
This paper presents the results of an experimental study on derating of an induction motor under different voltage unbalanced conditions and its comparison with the NEMA standard MG1 voltage unbalance derating graph. During the derating tests the 4 kW squirrel cage induction motor temperature rise was kept constant at the rated value and the windings temperature was measured on-line by means of an...
Induction motors that work with unbalanced line voltages have increased losses and excessive heating. In order to maintain the operational life time of the motor the international standards recommend the derating of the motor. This paper presents a study regarding the influence of the positive sequence voltage on induction motors temperature. This study aims to determine whether the voltage unbalance...
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