Читать книгу Introduction to Energy, Renewable Energy and Electrical Engineering - Ewald F. Fuchs - Страница 40

xx‐coordinate of x‐y spatial rectangular system, variable of integration(x, y, z)Cartesian coordinate system with x, y, z componentsx(t)x‐variable as a function of timeXreactance, variable for voltage and currentXMamplitude of time function x(ωt)Xmmagnetizing/cross‐branch reactance of transformerXlsleakage reactance of secondary windingXlineper phase reactance of distribution/transmission linesecondary leakage reactance referred to primary side of transformerXlpleakage reactance of primary windingXrms = Xeffroot‐mean‐square (rms) or effective (eff) value of a quantityXloadload reactance