Protective earth is mandatory for safety, but in many power electronic systems it forms the dominant return path for common-mode current, which can increase conducted emissions if not carefully managed.

Update (March 2026): Our March two-day course was a great success, and we would like to thank everyone for their strong support and participation. Due to high demand, our next course has already received several pre-bookings ahead of the official announcement. If you are interested in attending, please contact us or Telonic Instruments directly to secure your place, as availability is limited to 7 seats. Join the course now: https://telonic.co.uk/product/2-day-emc-troubleshoo