Читать книгу Introduction to Energy, Renewable Energy and Electrical Engineering - Ewald F. Fuchs - Страница 25

iunit directions of (i, j, k) rectangular system, current, integrationi+zero input current at positive terminal of operational amplifieri−zero input current at negative terminal of operational amplifierI, II, III, IVidentification of step functionICintegrated circuitINinverting configuration of operational amplifieria(t)armature current as a function of timereference/nominal/rated (*) value of armature (a) currentip(t)primary current as a function of timephasor source current as a function of angular velocity or frequencyprimary current through winding/phase Aprimary current through winding/phase Bprimary current through winding/phase Csecondary current through winding/phase asecondary current through winding/phase bsecondary current through winding/phase cprimary phasor currentmagnitude of phasor current in primary windingcore‐loss phasor currentexcitation phasor currentmagnetizing phasor currentsecondary phasor current referred to primary side of transformer phasor load current of single‐phase transformer referred to secondary sidephasor load current of single‐phase transformer referred to primary sideis(t)secondary current as a function of timeIinverter, integral, inductance, current, DC currentphasor current of secondary winding 2phasor conjugate (*) current of secondary circuitphasor source current of primary circuitsecondary phasor current of transformer referred to primary sidemagnitude of secondary phasor current of transformer referred to primary sidephasor capacitor current of transformer referred to primary sidephasor current through core‐loss resistance Rc of transformerphasor input current of primary circuitphasor output current of secondary circuiti(t)current as a function of timei1(t)primary current as a function of time functioni2(t)secondary current as a function of time functioni2current in secondary winding 2i1current in primary winding 1phasor current in primary winding 1IDCDC currentIinDC current inside of round wire up to radius rinIocurrent i(t) at t = 0component current of component current of ∞symbol for infinityICEinternal combustion engineininputIMinduction or asynchronous machineImindicates imaginary part of a complex numberabsolute value or magnitude of phasor IMamplitude of time function i(t)IMinduction motor/machineIGBTinsulated‐gate bipolar transistorincandescentEdison‐type light bulbcomplex conjugate of