WARNING!A drive of category C3 is not intended to be used on a low-voltage public networkwhich supplies domestic premises. Radio frequency interference is expected ifthe drive is used on such a network.￭ Category C4If the provisions under Category 3 cannot be met, the requirements of the standard can bemet as follows:1. It is ensured that no excessive emission is propagated to neighbouring low-voltagenetworks. In some cases, the natural suppression in transformers and cables is sufficient.If in doubt, the supply transformer with static screening between the primary andsecondary windings can be used.12345678946Medium voltage network1Neighboring network2Point of measurement3Low voltage4Equipment (victim)5Equipment6Supply transformer7Static screen8Drive92. An EMC plan for preventing disturbances is drawn up for the installation. A template isavailable from the local ABB representative.3. The input power cables, motor cables and control cables are selected as specified inthe appropriate drive manual(s).4. The drive is installed according to the instructions given in the appropriate drivemanual(s).162 Technical data
