Transcription of Transmission Line Parameters
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Transmission Line Parameters
13 TransmissionLineParametersManuel Reta-Herna ndezUniversidad Auto .. Capacity(Ampacity).. Inductive of a Solid,Round, Dueto InternalMagnetic of a Two-Wire of a of TransposedThree-PhaseTransmission and of a a Single-PhaseLinewith Two of of Dueto Earth s is one of the majorcomponents of an majorfunctionis to transport electricenergy, with minimallosses,fromthe power sources to the loadcenters,usuallyseparatedby longdistances. The designof a transmissionline dependson fourelectricalparameters:1. Seriesresistance2. Seriesinductance3. Shuntcapacitance4. ShuntconductanceThe seriesresistancerelies basicallyon the physicalcompositionof the conductorat a seriesinductance and shuntcapacitance are producedby the presenceof magneticand electricfieldsaround the conductors,and dependon shuntconductanceis due toleakagecurrentsflowing acrossinsulatorsand air.
alloy-conductor (AAAC). TABLE 13.1 Resistivity and Temperature Coefficient of Some Conductors Material Resistivity at 208C(V-m) Temperature Coefficient (8C) Silver 1.59 10 8 243.0 Annealed copper 1.72 10 8 234.5 Hard-drawn copper 1.77 10 8 241.5 Aluminum 2.83 10 8 228.1 2006 by Taylor & Francis Group, LLC.
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