Electromagnetic compatibility - A vital issue for medium-voltage switchgear

Electromagnetic compatibility (EMC) involves functional, legal and safety aspects. The paper summarises fundamentals of EMC in medium-voltage switchgear (1 kV <; U ≤ 52 kV), describing the electromagnetic climate, legislative and normative requirements, and presents guidelines for EMC correct design, manufacture and installation. Using the example of gas-insulated, metal-enclosed switchgear the paper demonstrates practical examples to limit disturbance emission and ensure sufficient immunity regarding the medium-voltage part of switchgear, the secondary system, the wiring arrangements and the selection of electronic devices.