17 pages matching armature reaction m.m.f. in this book
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0-8 leading air-gap alternating current alternating magnetizing current ampere-turns per pole-pair amperes armature reaction m.m.f. automatically variable excitation back e.m.f. braking calculation cent change-over switch coil component concentric winding conductors constant contactor copper loss d.c.-produced damping Danielson designed direct current direct exciting current dynamic braking effect efficiency electrical equation exciting winding full-load power factor full-load torque harmonic analysis induction-motor insulation lagging leading power factor line current liquid starter load torque magnetizing m.m.f. manufacturers maximum necessary no-load normal obtained operating ordinary induction motor outhang overload capacity phase angle pole pole-pitch power factor correction power factor machine power factor synchronous practice primary current primary winding pull-out torque reactance resistance rotating amplifier rotor salient-pole machine secondary m.m.f. secondary winding connection single-phase sinusoidal slip-rings slot standstill voltage starting period stator supply voltage synchronous induction motor synchronous machine synchronous motor synchronous running synchronous speed two-phase unity power factor usually