| 摘要 |
A small-sized apparatus having an inverter which can satisfy EMC standards by providing a small zero phase-sequence reactor which has a high noise attenuation rate over a wide frequency range and wide working temperature range. The apparatus having an inverter comprising a line-noise filter connected between a power supply and the inverter and a zero phase-sequence reactor connected between the inverter and a load is characterized in that the zero phase-sequence reactor connected between the inverter and the load comprises a tape-wound magnetic core formed by winding a nanocrystalline soft-magnetic alloy tape in which nanocrystalline grains not larger than 50 nm in grain size account for at least 50% in volume of the structure; the tape-wound core having the AC relative initial permeability mu ri (10 kHz) at the magnetizing force peak value of 0.05 A/m and the frequency of 10 kHz of 20,000 to 200,000, and the AC relative initial permeability mu ri (100 kHz) at the magnetizing force peak value of 0.05 A/m and the frequency of 100 kHz of not less than 10,000.
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