Critical induction – a key quantity for the optimisation of transformer core operation

作者： A Ilo , H Pfützner , T Nakata

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摘要: No-load losses P of transformers core have been considerably decreased through introduction the so-called multi-step-lap designs. However, profound guidelines for optimum step-number N do not exist. This study shows that combination both and working induction B characterises flux distribution. Transformer cores can operate in an over or under-critical way depending on B.