Annual Maintenance - Huawei UPS5000-A-30 kVA User Manual

UPS5000-A-30 kVA & 40 kVA & 80 kVA
User Manual
Item
Battery voltage
Shallow discharge test
(recommended)

6.2.4 Annual Maintenance

Table 6-7 Annual maintenance
Item
Capacity Test
Battery
connection
reliability
Issue 11 (2018-12-10)
Expected Result
 Equalized charging
voltage: 2.35 V/cell ±
0.02 V/cell

Float charging voltage:
2.25 V/cell ± 0.02 V/cell
Conduct a shallow discharge
test when the UPS is backed
up to verify that the batteries
can discharge normally.
Expected Result
When the UPS is backed up,
discharge a battery to the
undervoltage alarm threshold, to
refresh the capacity of the battery.
1. Each battery terminal is
connected reliably. (When
battery strings are powered
off, check the reliability of
each terminal in the order
from positive terminals to
negative terminals.)
2. The tightening torque of each
battery screw meets the
requirements of the battery
manufacturer. (A torque
wrench is used for checking
the torque. After checking that
the battery screws meet the
requirements, mark the screws
for later check.)
Copyright © Huawei Technologies Co., Ltd.
6 Routine Maintenance
Troubleshooting
1. Check whether the
equalized charging voltage
and float charging voltage
of a battery are normal.
2. If the charging voltage of a
battery exceeds the
specifications requirement,
perform a complete
forcible equalized charging
for the battery, and check
again whether the voltage
is normal.
3. If the fault persists, contact
Huawei technical support.
1. If the batteries cannot
discharge normally, locate
the fault (for abnormal
alarms, see the alarm list).
2. If the fault persists, contact
Huawei technical support.
Troubleshooting
1. Locate the cause when an
exception is identified.
2. If the fault persists, contact
Huawei technical support.
1. Rectify any abnormal
connection.
2. If the fault persists, contact
Huawei technical support.
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