Rotary DC electrical machine has permanent magnet rotor and axially magnetized annular magnets or annular coils provided at each end of stator or stator mantle
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DC induction machine
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Connection of starting capacitor for starting single phase motor - using switch with magnet coil connected to voltage of operating capacitor
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Capacitor start circuit for single phase induction motor - has two capacitors dimensioned to satisfy start and run condition with relay responding to rotor acceleration
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Capacitor control of single-phase induction motors
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SINGLE-PHASE INDUCTION MOTOR IN A STAR ARRANGEMENT