Государственное Высшее Учебное Заведение "Донецкий Национальный Технический Университет"
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A three-phase frequency converter for electric motor feed comprises a rectifier and a three-phase generator of pre-set frequency voltage. In addition, the generator is provided with a controller with three output ports and connected to said ports by three digit-to-analogues converters, outputs of which are connected to inputs of three amplifiers, outputs of which are connected to outputs of three amplifiers, to outputs of which three-phase motor is connected.
UAU201101052U2011-01-312011-01-31Three-phase frequency converter for electric motor feeding
UA62333U
(en)
High efficiency ac dc electric motor, electric power generating system with variable speed, variable power, geometric isolation and high efficiency conducting elements