Huawei UPS2000-G-6 kVA - Page 91

UPS2000-G-(6 kVA -20 kVA)
User Manual
7 Routine Maintenance
Issue 13 (2019-05-05)
Copyright © Huawei Technologies Co., Ltd.
83
Item
Expected Result
Measures
Maintenance Interval
5. Batteries are
not deformed
or bulged.
Battery
operating
temperatur
e
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.
1. Identify the cause of
the abnormal battery
operating temperature.
2. If the fault persists,
contact Huawei
technical support.
Monthly
Charge
voltage of
battery
string

Equalized
voltage 14.1 V
x Number of
batteries
(tolerance
±1%)

Float voltage
13.5 V x
Number of
batteries
(tolerance
±1%)
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.
Monthly
Battery
temperatur
e sensor
measureme
nt accuracy
The difference
between the
temperature
measured by the
temperature sensor
and the
1. Install the temperature
sensor in the correct
position.
2. Replace the battery
temperature sensor.
Quarterly