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The Advanced Harmonic Filter (AHF) offers cost-effective harmonic reduction despite ever-present background disturbances, such as phase unbalance and background voltage distortion, to provide optimized drive performance. The AHF Series 005 reduces total harmonic current distortion to less than 5%, thus providing performance similar to that of an 18-pulse drive. These highly efficient filters suppress total harmonic voltage distortion to lower levels than is otherwise achievable with 18-pulse drives, which simply transfer the harmonics to a higher frequency.
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