| 摘要 |
<p>Electromagnetic measuring device (10) associable to a conductor (11), which functions as a primary, of an electric network, to measure at a secondary coil (13) thereof an electric current proportional to the electric current circulating in the conductor (11). The electromagnetic measuring device comprises at least a supplementary coil (17) subject to a tension proportional to the network current, and electronic processing and control means (18), connected to said supplementary coil (17) so as to acquire over time data relating to electric tensions and/or currents of the electricity network.</p> |
