The figure uses the 1200 kVA UPS as an example.
●
Recommended cable cross-sectional area: 240 mm
2
●
Recommended screw: M16
Figure 6-413 Short-circuiting the input N and PE (side view of the 1200 kVA
UPS)
6.11 Connecting a Backfeed Protection Card
Prerequisites
NO TICE
● A backfeed protection card has been configured.
● The backfeed protection card uses relay contact signals and it can connect to
any power signal with a voltage of 240 V AC or less and a current of less than
6 A.
● The backfeed protection card needs to be powered by the UPS output or a
more reliable third-party power supply to ensure that the backfeed protection
card can isolate faults if backfeed faults occur during power supply in battery
mode.
Procedure
Step 1 Connect cables to the backfeed protection card.
●
If the UPS output power supply is used, select a shunt release that matches
the rated voltage based on the voltage system. (Currently, only the 1600 kVA
UPS supports this feature.)
UPS5000-H-(1200 kVA-1600 kVA)
User Manual (100 kVA Power Modules)
6 Installation
Issue 05 (2021-10-13)
Copyright © Huawei Technologies Co., Ltd.
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