It is not unusual for rural 11 kV distribution systems in the UK to be divided into four or five feeders associated with a single primary infeed. This is for a number of reasons concerning design standards, network constraints, costs, and performance. This article presents a method for determining the number of feeders that is suitable for radial networks. The input data for the model is crucial and is discussed before the results for losses, reliability, and network costs are presented. A simple optimization of these results is then carried out and discussed.
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