1. Measurement principles
1.1 Single-phase active energy meter
The active energy in a single-phase electrical circuit is obtained by integrating over time the product of the instantaneous values of the voltage u across the circuit and the current i flowing through it. This corresponds to the application of the formula :
A single-phase active energy meter therefore comprises a multiplier device plus an integrator device. These devices will differ...
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Measurement principles
Meter classes
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