Danfoss VLT Drives offers a range of external power options for use together with Danfoss drives in critical networks or applications.
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VLT Advanced Active Filter
An active shunt filter for harmonics and reactive current mitigation. The filter is designed for installation in various applications to compensate for single or multiple drive assemblies.
VLT Advanced Harmonic Filter
Advanced harmonic filters not to be compared with traditional harmonic trap filters. The Danfoss harmonic filters have been specially designed to match the Danfoss frequency converters.
VLT Power Option
Du/dt filters reduce the du/dt values on the motor terminal phase-to-phase voltage - an issue that is important for short motor cables.
Sine Wave Filters
Sine-wave output filters are low-pass filters that suppress the switching frequency component from the drive and smooth out the phase-to-phase output voltage of the drive to become sinusoidal. This reduces the motor insulation stress and bearing currents.
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