¹ Is not calculated for circuits of 1 element without 3-phase synthesis.
² Is not calculated for neutral circuits.
The fundamental frequency of the input signal must be within a range of ± 6 Hz of the nominal frequency of
the electrical system.
Power Measurement:
Power measurement is computed based on the values of a voltage circuit and a current circuit. The following
values are computed once per cycle:
Voltage and current measurement
Fundamental apparent power
Reactive power has a positive sign for circuits with inductive characteristics and a negative sign for circuits
with capacitive characteristics.
DC Transducers Measurement:
The RMS value of the DC channels (transducers) is calculated once per cycle.
High-speed Voltage Measurement:
There is an 8-bit opto-isolated analog-to-digital converter, independent for each channel. The acquisition is
performed with 5 MHz sampling frequency (high-speed channels), that means one acquisition each 200 ns.
3.7.2 PLOTS
To graphically monitor the values related to circuits and DC channel quantities, access the Web Interface:
MONITORING > PLOTS
In this screen it is possible to monitor up to 6 different voltage, current, or DC channel quantities, as shown in
Figure 64.
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