Elements of Electrical Engineering: A Textbook of Principles and Practice |
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60 cycles adjusted alternating current ampere-hour ampere-turns amperes armature current armature reaction Article battery brushes capacity cent coil condenser conductors connected constant converter copper loss counter e.m.f. curve d.c. motors decrease direct current discharge drop effect Equation Example excitation feeder field current field resistance field rheostat 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 line wires load current machine magnetic circuit magnetic field magnetomotive force maximum negative neutral ohms operated output phase angle 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