## Industrial electricity, Part 2 |

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3-phase alternating current alternating-current alternating-current circuits ammeter ampere-turns amperes angle armature capacitance circuit containing coil current coil voltage condenser conductor connected in series core cosine current and voltage current flows current lags current vector current-coil cycles per second differ in phase direct current direct-current effective values electrical energy equal equation example Example.—A farad Figure flux frequency Hence horizontal increase induced e.m.f. induction motor instant lamps line current line voltage load current machine maximum value negative obtained Ohm's law ohms ordinate parallel polyphase polyphase systems positive potential-circuit power curve power taken primary radians radius reactance resistance resultant right-hand rule rotating rotor secondary series circuit shown in Fig shows sine curve single-phase sinusoidally slots per pole space-degrees speed synchronous tance terminal voltage three coils time-degrees torque total power transformer unity power-factor vector diagram vector sum velocity voltage and current voltmeter volts wattmeter watts winding wire Y-connected Y-system