Simulation and experimental study of power flow in a seven‐phase transformer under fault conditions

Fault analysis is necessary to design a protection system and circuit breakers for power network. The multiphase new technology so very little work found the fault of contrary, unlike three-phase system. faults in seven-phase may be either symmetrical or non-symmetrical. A non-symmetrical requires studying sequence components using Fortescue transformation. In paper, has been analysed. For this, definition an unbalanced proposed this paper. Then are applied different studies at input output sides transformer. Further, effect construction transformer, that is, core type shell on its studied. Moreover, open-phase analysed simulation hardware results. From analysis, it certain configurations produced even though present while other configurations, not case fault.