| 摘要 |
<p>PURPOSE:To determine the extent of harmonic current compensation through an active filter. CONSTITUTION:The extent of harmonic current compensation is determined easily by providing an active filter with a unit 521 for operating the total content of harmonic current in load current, a unit 522 for operating the total content of harmonic current flowing through a power receiving line 1, and a unit 523 for operating the ratio of the difference to the former content as a harmonic current compensation rate and presenting the operational results on an indicator 525.</p> |
