DEVICE FOR CONTROLLING OPERATION OF ELECTRIC POWER METER IN MONOPHASE NETWORKS

摘要

FIELD: measuring techniques. ^ SUBSTANCE: proposed device comprises an earthed or zeroed protective cover with a clamping screw (common bus) on the protective cover of the meter. The meter is connected through screw terminals to the monophase network and signalling element. The clamping screw on the earthed or zeroed protective cover is connected to one terminal of the signalling element, and the other terminal of the signalling element is connected to the zero screw terminal of the meter. The signalling element is in the meter under a cover or clamping cover with an opening for the signalling light. The clamping screw on the earthed or zeroed protective cover coincides with the mounting hole of the holding case of the meter. ^ EFFECT: wider functional capabilities. ^ 1 dwg