Abstract
It has been a general practice by distribution utilities to parallel overhead distribution lines/feeders in a common right of way and the same pole as they terminate from a common substation. This paper studies the impact of modeling parallel overhead distribution lines. The modeling of this kind of circuits in the regulated status of electric distribution business is important as the modeling can impact line losses, voltage drop and voltage unbalance in the lines. A sample case was set-up and is simulated in two cases; parallel lines modeling and taking the parallel lines individually. The study utilized load flow calculations for analyzing line losses, voltage drops and voltage unbalance. The results showed that line losses are not affected by the kind of modeling applied to parallel overhead distribution lines but voltage drop and voltage unbalance yielded different results in the two cases simulated.
See full paper - Parallel Distribution Lines
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