Sine filters effectively protect the motor insulation with frequency inverter drives and thereby extend their lifetime. They reduce supplementary losses and noise emissions from the motor. All-pole sine filters also enable the use of unshielded motor lines. The reduction in common mode currents in the system’s grounding scheme minimizes leakage currents and results in optimum EMC performance for the drive.
The sine filter achieves a very high filter effect through precise low pass adjustment to the frequency inverter’s switching frequency. BLOCK sine filters are produced with Future Winding technology and are therefore specifically optimized for performance. They achieve a better cooling effect compared with traditional filters along with lower proximity losses.
