Cold-Starting The Ups Using Batteries - Huawei UPS5000-H Series User Manual

UPS5000-H-(400 kVA-600 kVA)
User Manual (100 kVA Power Module)
Figure 7-5 Normal bypass
Figure 7-6 Abnormal bypass
Step 2 After the inverter shuts down, turn off the downstream output switch.
Step 3 Switch off the battery string circuit breaker. If there are multiple battery strings,
switch off the general circuit breaker between battery strings and the UPS and
then switch off the circuit breaker for each battery string.
Step 4 Turn off the upstream mains and bypass input switches.
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7.3 Cold-Starting the UPS Using Batteries

Lead-Acid Battery Cold Start
Step 1 Check that batteries are properly connected. Use a multimeter to measure the
voltage of each battery string. The value should be greater than the specified
value (Voltage of a single battery x Number of batteries in the battery string).
Step 2 Turn off the mains and bypass input switches in the external input PDC, and
switch on the battery circuit breaker. If there are multiple battery strings, switch
on the circuit breaker for each battery string and then the general circuit breaker
between the battery strings and the UPS.
Issue 01 (2020-11-30) Copyright © Huawei Technologies Co., Ltd.
7 System Commissioning
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