SM 10-3000


The Switch Module is meant for performance check (turns ratio calculation) of current transformers. CT turns ratio is defined within 30/5 to 4000/1 range at operating currents from 0.1In to 1.5In (In – nominal current of the EM3.3T1-C). Permissible error for turns ratio measurements does not exceed doubled current measurement error of the EM 3.3T1-C.