Power Quality and EMC

Lemcko specializes in research on power quality, high frequency power quality and EMC.

The research on high-frequency power quality (2 - 500 kHz) includes:

  • Measurement methods for emission and immunity between 2 and 500 kHz
  • Emission problems caused by switching harmonics
  • Influence on network communication (power line communication)
  • Measurement of grid impedance 2 - 500 kHz
  • Propagation of 2 - 5000 kHz signals in the grid

The research on EMC mainly focuses on power electronic applications:

  • Influence of drives on EMC and bearing currents
  • Influence of cables
  • Influence of filters
  • Shielding of electrical cabinets


Emission on LV-grid by PV-invertor 16kHz
Emission on LV-grid by PV-invertor 16kHz