| 摘要 |
<p>The process for metering electric power passing via a certain point in a single-phase system comprises current (I2) and voltage (U) stages at said point in the system and a processing stage for this information to generate data on the measurement of electric power. Each current data acquisition stage comprises the following steps: A/ injection, into a winding (10a) of a magnetic circuit (10) with a predetermined structure surrounding one (LA) of the lines (LA, LB) of the system, of a current (I1 + Ic) substantially proportional to the sum of a modulation current (kI1) and a 'compensation' current (kIc); B/ detection at the terminals of said winding (10a) of an overvoltage leading to the immediate acquisition of said compensation current (kIc) as an image of the current passing through the line (LA). Use in the electronic metering of power in domestic installations, especially with facilities for remote transmission and information.</p> |
