Huawei UPS5000-E-30 kVA - Working Principle; Conceptual Diagram; Working Modes; Normal Mode

This model provides six congurations: 30 kVA, 60 kVA, 90 kVA, 120 kVA, 150 kVA,
and 180 kVA.
2.2 Working Principle
NO TE
● indicates an input mode.
● indicates the direction of energy ow.
2.2.1 Conceptual Diagram
The UPS5000 is an online product. It uses a modular design, which facilitates
maintenance and capacity expansion. The UPS5000 uses the digital signal
processing (DSP) intelligent control technology. Its power module consists of a
rectier and inverter. The UPS converts inputs into pure, high-quality sine wave
outputs by using the high-frequency switching technology.
Figure 2-2 Conceptual diagram in the air-cooled scenario
2.2.2 Working Modes
2.2.2.1 Normal Mode
In normal mode, the rectier converts AC power into DC power. Then the inverter
converts DC power into AC output with higher precision and quality. The two
conversions ensure high-precision and high-quality output voltages, protecting
loads from interferences such as input harmonics, glitches, and voltage transients.
UPS5000-E-(30 kVA–180 kVA)
User Manual (Integrated UPS) 2 Product Overview
Issue 02 (2022-12-30) Copyright © Huawei Digital Power Technologies Co., Ltd. 25