## Alternating Currents |

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alternating currents alternating-current angle armature busbars calculated cent circuit diagram coil commutator component condensive reactance conductor connected constant converter copper loss core corona corresponding current and voltage current flowing current wave curves direct currents direct-current effective values electric circuit energy equal equation equivalent exciting current field excitation frequency full load harmonic hence hysteresis impressed voltage increase induction motor insulation kv.a lagging current leakage lines of force machine magnetic field magnetic flux magnitude mains neutral ohms operating parallel circuits phase position Plot pole power factor primary problem produced pulsations quadrature ratio reactive power receiver voltage represented resistance and reactance rotation rotor secondary series circuit short-circuited shown in Fig sine wave single-phase space spark-over stator synchronous condenser synchronous motor terminal voltage three-phase torque total voltage transformer transmission line two-phase vector diagram vibrating voltage and current voltage gradient voltage wave volts wattmeter watts winding wire zero