| 摘要 |
According to one embodiment, there is provided a magnetizing inrush current suppression apparatus including a transformer-side voltage measuring unit measuring a single-phase voltage, a conversion unit converting the single-phase voltage to a three-phase voltage, a residual magnetic flux calculation unit calculating residual magnetic fluxes, a voltage measuring unit measuring a voltage on the power source side, a steady magnetic flux calculation unit calculating steady magnetic fluxes, a phase determination unit determining a phase in which polarities of the steady magnetic fluxes match polarities of the residual magnetic fluxes, and a closing unit closing the circuit breaker in the phase.
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