| 摘要 |
<p>The present invention relates to a zero phase harmonics reducing device. The zero phase harmonics reducing device according to a preferable embodiment of the present invention comprises a current monitoring unit which monitors a current value on an N phase line connecting an N phase of a power distribution system and a zero phase harmonic filter; and a mode switching unit which connects the zero phase harmonic filter and the N phase of the power distribution system through a bypass path if the current value of the N phase line is greater than a first preset reference value, wherein the bypass path is connected in parallel to the N phase line.</p> |
