Quarterly Maintenance - Huawei UPS5000-H-1200K-NT User Manual

UPS5000-H-(1200 kVA-1600 kVA)
User Manual (100 kVA Power Module)
Check Item
Battery
operating
temperature
Battery string
charging
voltage

7.2.3 Quarterly Maintenance

Table 7-5 Quarterly maintenance
Check Item
Battery temperature
sensor precision
Battery management
parameter settings
Issue 07 (2022-11-29)
Expected Result
● The ambient temperature
of batteries is 25±5°C.
● The battery operating
temperature must be lower
than the ambient
temperature plus 20°C.
● Battery charge and
discharge conditions meet
the requirements specified
in the battery
specifications.
● Equalized charging voltage
(2.35 V/cell±1%) x Voltage
of a single battery/2 x
Number of batteries in a
battery string
● Float charging voltage
(2.25 V/cell±1%) x Voltage
of a single battery/2 x
Number of batteries in a
battery string
Copyright © Huawei Digital Power Technologies Co., Ltd.
Expected Result
The deviation between
the detected temperature
and the displayed
temperature must be less
than 3°C.
The settings of battery
management parameters
meet the requirements in
the user manual.
7 Maintenance
Troubleshooting
1. Identify the cause of an
abnormal battery operating
temperature.
2. If the fault persists, contact
technical support.
1. If the voltage drop between
the battery string output
terminals and the battery
input terminals at the UPS
side is greater than 1% of
the battery string voltage,
check whether the cable
between the battery string
and the UPS is excessively
long, or the cable diameter
is excessively small.
2. Check whether the
equalized charging voltage
and float charging voltage
are correctly set for the
UPS.
3. If the fault persists, contact
technical support.
Troubleshooting
1. Install the temperature
sensor in the correct
position.
2. Replace the battery
temperature sensor.
Set parameters correctly.
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