Danfoss Drives has introduced its first mass produced VLT Low Harmonic Drive, which eliminates harmonic disturbances on the supply grid by actively imposing currents on the grid to restore its sinusoidal characteristics. Like other VLT drives, the Low Harmonic Drive is built on a highly modular platform and shares features like high energy efficiency, backchannel cooling and user-friendly operation. The new Danfoss Low Harmonic drive thus continuously regulates the network and load conditions without affecting the connected motor.
The VLT Low Harmonic Drive meets the toughest harmonic recommendations and gives the user full readout of the unit performance towards the grid including graphical overview of grid behaviour. It is available in the power range 160 - 710 kW, and meets the IEEE519 recommendation.