Bypass Mode - Huawei UPS5000-A-500 kVA User Manual

UPS5000-A-500 kVA
User Manual (e-shelter)
Figure 2-3 UPS conceptual diagram in normal mode

2.2.2.2 Bypass Mode

If the inverter does not start or is manually shut down after the UPS is powered on, the bypass
supplies power to loads. The UPS automatically transfers from normal mode to bypass mode
if it detects power unit overtemperature, overload, or other faults that may cause the inverter
to shut down. The bypass power supply is not protected by the UPS which means it may be
affected by mains outage, and incorrect AC voltage or frequency.
conceptual diagram of the UPS working in bypass mode.
Figure 2-4 UPS conceptual diagram in bypass mode
Issue 02 (2020-01-10) Copyright © Huawei Technologies Co., Ltd.
2 Overview
Figure 2-4 shows a
17