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THE EFFECTS OF LOAD CURRENT IN ARMATURE WINDINGS
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Alternating Current alternator ampere-turns armature current armature m.m.f. armature reaction armature resistance armature winding assumed axis brushes cent characteristic coil-groups coil-sides coil-span commutator machine component conductors connected considered constant copper loss core losses corresponding curve d.c. machine delta connected direct current direction distribution factor eddy currents effect equal equation equivalent circuit excitation field winding Figure flux density frequency full-load given harmonics hence impedance increase induction motor lagging leakage flux leakage reactance load angle load current m.m.f. wave magnetic circuit maximum Metadyne necessary negative newton-metres no-load number of slots obtained open-circuit e.m.f. parallel pole-pairs pole-pitch position power factor primary r.m.s. value ratio regulator repulsion motor respectively result rotating rotor current rotor winding salient-pole saturation short-circuit shown shunt single-phase skin effect slip slip-ring slots per pole star-connected starting torque stator winding supply synchronous reactance synchronous speed terminal voltage third-harmonic three-phase induction motor three-phase winding torque transformer vector diagram zero