108
Figure 2 – Block diagram of the UPS
4.4 System Description
4.4.1 Rectifier
It converts the three-phase voltage of the AC mains into continuous DC voltage.
The control electronics uses the latest generation controller that allows to reduce
the distortion of the current absorbed by mains (THDi). This ensures that the rectifier
does not distort the supply mains, with regard to the other loads. It also avoids cable
overheating due to the harmonics circulation.
The rectifier is so sized as to supply the inverter at full load and the battery at the
maximum charging current.
4.4.2 Invertor
It converts the direct voltage coming from the DC battery into alternating AC
voltage stabilized in amplitude and frequency.
Thanks to the control electronics of latest generation, it generates an excellent
output sine-wave.
Summary of Contents for SMALLR1
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