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A three-phase decapolar motor consumes a power of 250 KW when working at full load at...

A three-phase decapolar motor consumes a power of 250 KW when working at full load
at 550 rpm It has an efficiency of 82.5% and is connected to a network of 380 V at 50 (Hz). The
company where the kilowatt hour is invoiced at $ 183.95. When replaced by a
engine of similar characteristics but with 94% efficiency, the power [kW saved
it will be

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