Working Principles - Huawei DDSU666-H User Manual

DDSU666-H Smart Power Sensor
User Manual
Figure 2-1 DDSU666-H

2.2 Working Principles

Conceptual Diagram
The Sensor can convert the voltage and current signal to be the signal that can be
identified by MCU through the sampling circuit, MCU will calculate and convert it
into energy, power, power factor and other electrical quantity by calculating the
signals in the sampling circuit, transferring to users through communication and
meanwhile save the data in the storage circuit. Please see the conceptual diagram
of the Sensor as figure 2-2:
Figure 2-2 2-2Conceptual diagram
Functions
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Accurately metering the positive/ reverse active energy and combined active
energy, no storage data loss for the sensor after power interruption.
Issue 02 (2021-03-01)
Metering function:
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