Practical modeling of loss at sample distribution network and its accuracy evaluation

It is necessary to plan for estimating and determining the power and energy loss to decrease the loss in distribution companies. It is not simply possible to obtain a comprehensive model and satisfy with theoretical equations, because there are different uses and special environmental conditions in different points of system. Usually, there are differences between accounted amounts of loss and determined amounts. Therefore, dependence on available models and their usage for distribution system, especially for feeders, which have low load or used in special situations causes some mistakes and incorrect results. In this paper, we evaluate accuracy of models in addition to modeling loss at 20kw network model and compare it with the evaluation and measurement method.