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This paper focus on energy efficiency comparison and analysis of different DC power distribution mode for large data center. First, several single-module DC power supply systems with different voltage level and power capacity are applied to substitute for UPS based AC distribution mode for a typical data center of high-tech park with many enterprises. Secondly, system efficiency, power supply loss...
This paper presents a novel energy efficient single-phase induction motor with three series-connected windings and two capacitors. By suitable selection of capacitors, the currents in three windings are approximately symmetrical, and thus, the motor can operate approximately symmetrically from single-phase supply. Based on the symmetrical components method, the condition for balanced operation is...
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