## Alternating Currents and Transients: Treated by the Rotating Vector Method |

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### Contents

Introduction | 1 |

Vectors and Vector Operators Section 1 Definition of a Unit Vector | 4 |

Derivation of a Vector from a Unit Vector | 5 |

Copyright | |

79 other sections not shown

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### Common terms and phrases

2cot admittances alternating current amperes amplitude angle anode applied condenser conductors connected considered const constant angular velocity constant magnitude corresponding cos cot cosh currents and potentials Delta-connected direction electrical constants equal equation equivalent exponentially expression free oscillation frequency functions given hyperbolic functions illustrated in Fig impedance instant instantaneous value jb)v Kirchhoff's second law length line currents line e.m.fs load lOOirt m-phase system Max Wien mean power consumed mean value neutral line neutral point ohms operand operator oscillatory circuit parallel period periodic function polyphase systems potential differences pure capacity pure inductance pure resistance Putting quantities reactance result rir2 root-mean-square value rotating with constant scalar form scalar product shown in Fig Similarly sinh solution Three-line Star-connected three-phase system unit vector vector form vector of constant vectorial method vectors representing vn)dt wattmeters watts wave form zero