Register VLEVEL Calculation

The VLEVEL register is used in the algorithm that computes the fundamental active and reactive powers.

The full-scale voltage V_FS can be computed, that is, the rms of the sinusoidal voltage that determines a full-scale sinusoid at the voltage channel ADC inputs.

where and are the resistor divider components, and 0.5V is the maximum allowed voltage at ADC inputs.

Register VLEVEL shall be initialized by

where is the nominal phase voltage of the meter.

Note: VLEVEL is converted from float into integer by cutting the decimal points: VLEVEL Code = 846981 ≙ 0xCEC85 .

Octave Online Workspace