Three-phase du/dt chokes, 3RTU type
Purpose and design
Three-phase du/dt chokes are used in drive systems powered and regulated by inverters. The du/dt chokes installed at the inverter output limit the steepness of the rise of the du/dt pulses of the motor supply voltage. This protects the insulation of the power cable and the motor. Du/Dt chokes can be made in IP23 rated enclosures or covers. In case of a need for installation of chokes in enclosures with a higher protection class should be consulted with the manufacturer.