Working Modes; Normal Mode - Huawei UPS5000-A-200K-ST User Manual

UPS5000-A-(200 kVA-800 kVA)
User Manual
Figure 2-3 Conceptual diagram

2.2.2 Working Modes

2.2.2.1 Normal Mode

The normal mode indicates that the UPS works normally: The rectifier converts
the AC input voltage into the DC voltage, which is then raised to the bus voltage
by the power factor correction (PFC) circuit. One part of the voltage passes
through the DC-DC circuit to charge the battery, and the other part is converted
by the inverter into AC voltage output. The double-conversion process ensures the
precision and quality of the output voltage, protecting loads from interferences
such as input harmonics, burrs, and voltage transients.
conceptual diagram of the UPS working in normal mode.
Figure 2-4 UPS conceptual diagram in normal mode
Issue 05 (2020-04-27) Copyright © Huawei Digital Power Technologies Co., Ltd.
2 Overview
Figure 2-4 shows the
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