In an induction machine stator has 8 poles and is excited by a 60 Hz source. If the rotor is driven by a variable speed DC motor, Calculate the frequency of rotor currents across the slip -rings if...

In an induction machine stator has 8 poles and is excited by a 60 Hz source. If the<br>rotor is driven by a variable speed DC motor, Calculate the frequency of rotor<br>currents across the slip -rings if the dc motor turns, at 720 r/min in the opposite<br>direction as the rotating field.<br>12 Hz<br>6 Hz<br>60 Hz<br>108 Hz<br>O of 14<br>

Extracted text: In an induction machine stator has 8 poles and is excited by a 60 Hz source. If the rotor is driven by a variable speed DC motor, Calculate the frequency of rotor currents across the slip -rings if the dc motor turns, at 720 r/min in the opposite direction as the rotating field. 12 Hz 6 Hz 60 Hz 108 Hz O of 14

Jun 10, 2022

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In an induction machine stator has 8 poles and is excited by a 60 Hz source. If the rotor is driven by a variable speed DC motor, Calculate the frequency of rotor currents across the slip -rings if...

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