Quarterly Maintenance - Huawei UPS5000-H Series User Manual

UPS5000-H-(400 kVA-600 kVA)
User Manual (100 kVA Power Module)
Item
Battery
operating
temperature
Charge
voltage of
battery string

8.2.3 Quarterly Maintenance

Table 8-5 Quarterly maintenance
Item
Battery temperature
sensor measurement
accuracy
Issue 01 (2020-11-30)
Expected Result
1. The ambient battery
temperature is 25±5°C.
2. The battery operating
temperature is lower than
battery temperature +20°C.
3. Battery charge and
discharge conditions meet
the requirements specified
in the battery
specifications.
● Equalized charging voltage:
(2.35 V/cell ±1%) x Single
battery voltage/2 x Number
of batteries in a battery
string
● Float charging voltage:
(2.25 V/cell ±1%) x Single
battery voltage/2 x Number
of batteries in a battery
string
Expected Result
The difference between
the temperature
measured by the
temperature sensor and
the temperature displayed
on the MDU is less than
3°C.
Copyright © Huawei Technologies Co., Ltd.
8 Routine Maintenance
Troubleshooting
1. Identify the cause of an
abnormal battery operating
temperature.
2. If the fault persists, contact
Huawei 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
Huawei technical support.
Troubleshooting
1. Install the temperature
sensor in the correct
position.
2. Replace the battery
temperature sensor.
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