| 摘要 |
PURPOSE: A harmonics reducing apparatus for reducing harmonic current is provided to reduce super-high voltage applied to a three-phase system power source to low voltage, thereby reducing distortion rate of integrated harmonic waves. CONSTITUTION: A single-phase power supply system transformer(110) is connected to a super-high voltage three-phase system power source in a Scott connection mode. A neutral point for grounding is arranged on the center of a plurality of first autotransformers(120). A second filtering circuit part(170) is respectively connected to the super-high voltage three-phase system power source and intermediate terminals of first and second lines. A three-phase load harmonic wave current source(180) is respectively installed on end terminals of the first and second lines. A first circuit of the second filtering circuit part comprised a plurality of resistors and capacitors. |
