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Vectors for Two and Threephase Circuits
Vectors for a Transformer
8 other sections not shown
60-cycle graph a-c circuit alternating current amperes Amplifier angle of lag armature autotransformer capacitance capacitor circle diagram clockwise coils complex quantities conductors constants copper loss core cosine cosö counterclockwise current lagging delta delta-connected circuit Direct Current draw drawn effective resistance electromotive force equal exciting current Figure flux frequency full-load graphically horizontal induction motor leakage line current line voltage load current machine magnetizing current miles multiplied no-load obtained ohmic resistance ohms operating parallel circuit parallelogram phase polar vectors pole power factor primary Producea ratio receiving-end regular transformer resistance and reactance rotate rotor scale secondary shown by Fig shows single-phase slip rings Solution stator subtracted symmetrical components synchronous motor terminals test readings three-phase circuit transformer diagram triangle trigonometry unbalanced circuit values vector amp vector diagram vertical voltage and current voltage vectors volts wattmeter watts waves of voltage winding wye-connected circuit zero zero-sequence