Browsing by Author "Chisepo, Hilary K"

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    The response of transformers to geomagnetically induced- like currents
    (2014) Chisepo, Hilary K; Gaunt, C Trevor
    This dissertation discusses the development and implementation of a rigorously developed protocol for characterizing and testing transformers with GIC-like currents based on their magnetization curve characteristics. The differences between reactive and non-active power in the context of transformers and GICs are investigated thoroughly and their impact on power networks are analysed. The implementation of this protocol in the laboratory and simulation environments has therefore led to a sound characterization of the transformers’ electrical and magnetic response. This developed protocol can also be useful when extended to investigate the response of large power transformers, particularly for the generation of mitigation parameters that are valuable to power utilities..