Frequency Converters

Customised Frequency Converters

Frequency converters take a certain AC voltage and change the voltage magnitude and frequency. The output voltage has sinusoidal features. The frequency converters can have a single-phase or three-phase design. The input voltage may fluctuate greatly and the output voltage is controlled to an accuracy of around 3 per cent independent of the load ratio or grid fluctuations as standard.

In principle, frequency converters consist of a rectifier that feeds a DC link and a downstream inverter that generates the required AC voltage. The output voltage is galvanically isolated from the grid by both of these current inverters. Frequency converters can be used to simulate foreign power grids for device test purposes.

KACO can produce frequency inverters with rated powers between 200 W and 10 kW on request.