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Smart distribution and optimisation of the number and position of reclosers to minimise equipment damage

The implementation and optimisation of reclosers in the South African electrical network are currently based on network reliability and cost. The effects of the placement and protection settings of the reclosers do not consider the operational aspects, such as equipment safety and heavy loading tripping of the system. This paper shows the effects of modifying the objective function to incorporate two additional factors, namely the reduction of equipment damage and risk of tripping due to heavy loading, and how the recloser positions change. The implementation of the new modified optimisation function yielded promising results which placed a higher emphasis on the safety of the system. The function allows for situations which have previously had to be accounted for manually by the protection engineer. The implementation of this function yields promising results which could increase the lifespan of the equipment of the feeder.