92 pages matching armature current in this book
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ELECTRIC AND MAGNETIC CIRCUITS CHAPTER I Electric Circuits and the Electric Current
Power and Work
39 other sections not shown
60 cycles adjusted alternating current ampere-hour ampere-turns amperes armature current armature reaction Article battery brushes capacity carrying cent coil condenser conductors connected constant converter copper loss counter e.m.f. curve decrease direct current discharge drop effect Equation excitation feeder field current field resistance field rheostat field winding flux density force frequency full load full-load current Hence horsepower impressed voltage inches increased induced e.m.f. induction motor input insulation kv-a lagging lamps load current machine magnetic circuit magnetic field magnetomotive force maximum neutral normal number of poles ohms operated output polyphase positive power factor primary Prob produced rated reactance rheostat rotation secondary series circuit series field series motor short-circuited shown in Fig shunt field shunt motor single-phase slip-ring squirrel-cage starting torque stator supply switch synchronous motor temperature terminal voltage three-phase total current total flux total power total voltage transformer two-phase unity power factor volts wattmeter watts zero