Backfeed Protection Card; Surge Protection Box; Bcb Box - Huawei UPS5000-H Series User Manual

UPS5000-H-(400 kVA-600 kVA)
User Manual (100 kVA Power Module)
Figure 5-1 Appearance

5.3 Backfeed Protection Card

When energy backfeed occurs, the backfeed protection card sends signals to
trigger alarm signals or quickly disconnect the feedback loop. The card is hot
swappable.
Figure 5-2 Appearance

5.4 Surge Protection Box

The surge protection box is used to improve the surge protection capability for the
UPS. It applies to a three-phase four-wire + PE power system.
Figure 5-3 Surge protection box
(1) Working status indicators

5.5 BCB Box

The BCB box controls the connection between battery strings and the UPS, and
supports overload protection, short circuit protection, and remote trip control.
Issue 01 (2020-11-30) Copyright © Huawei Technologies Co., Ltd.
5 Optional Components
43