4Series Impedance of Overhead and Underground Lines
The determination of the series impedance for overhead and underground lines is a critical step before the analysis of a distribution feeder can begin. The series impedance of a single-phase, two-phase (V-phase), or three-phase distribution line consists of the resistance of the conductors and the self and mutual inductive reactances resulting from the magnetic fields surrounding the conductors. The resistance component for the conductors will typically come from a table of conductor data such as that found in Appendix A.
4.1 Series Impedance of Overhead Lines
The inductive reactance (self and mutual) component of the impedance is a function of the total magnetic fields surrounding a conductor. ...
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