Harmonic filters optimise drive performance
A
Danfoss Drives product story
Edited by the Engineeringtalk editorial team
Feb 4, 2004
The AHF advanced harmonic filter offers cost-effective harmonic reduction despite ever-present background disturbances.
The AHF advanced harmonic filter offers cost-effective harmonic reduction despite ever-present background disturbances, such as phase unbalance and background voltage distortion, to provide optimised drive performance.
The AHF Series 005 reduces total harmonic current distortion (THiD) to less than 5%, thus providing performance similar to that of an 18-pulse drive.
These highly efficient filters suppress THvD to lower levels than is otherwise achievable with 18-pulse drives, which simply transfer the harmonics to a higher frequency.
The AHF Series 010 provides superior performance when compared with a 12-pulse drive, while reducing THiD to less than 10%.
Advanced harmonic filters feature a compact housing that is easily integrated into existing panel space, making them well suited for retrofit applications.
They are designed for simple setup with "cable-in/cable-out" installation, and require no balancing, routine maintenance, or specialised startup.
One filter module can be used in conjunction with several variable frequency drives.
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