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The impact of power network changes on one ageing mechanism in one simple insulation system is considered. The effects of non-power frequency events on electrical treeing in epoxy resins are critically reviewed. These non-power frequency events include 3rd, 5th and 7th odd harmonics and various impulses superposed upon the power frequency. A framework under development is tailored for the stochastic...
The development of a multifactor framework which links ageing of insulation systems to power network performance is described. The framework provides a platform on which to develop models of plant reliability, identifying direct relationships between the working environment of the equipment and the ageing and failure processes of the insulation system. The evolution of the working environment is far...
A framework has been developed which links the reliability of insulation and plant to changes in their operating environment. These changes include non-power frequency events such as harmonics and the occurrence of impulses. This work is driven by the new demands put on real networks as a result of changing loads and renewable and distributed generation. The framework presented allows a coherent view...
The paper describes genetic-algorithm (GA)-based optimization software for reconfiguration of a distribution network in order to minimize financial losses due to voltage sags. The developed methodology starts with a selected number of switches which generate various topologies. Load flows are then performed to evaluate the feasibility of topologies. For each feasible topology, fault analysis is performed...
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