Protect 5.31/xxx-480-220-120 10 kVA - 120 kVA
Page 25 of 56
8000020680 BAL, en
5.6.2 Capacity
Test
The capacity test allows the availability of the battery to be tested
using the currently available inverter load. In this process, the
regulator lowers the DC voltage setpoint to approx. 1.9 V/cell.
Generally, the battery backs up the DC voltage and supplies the
entire current to the inverter. This simulates a rectifier circuit failure. In
the event of a battery fault, the inverter continues to be supplied by
the rectifier.
The following parameters can be set using the DOU:
•
Discharge
time
•
Final discharge voltage
The test can be started under the following conditions:
•
Operating mode: Trickle charging
•
At least 1 min must have elapsed since the last test
Values displayed on the DOU:
Before the test:
•
Date and time of the last test
During the test:
•
Battery voltage, battery current, test duration, capacity drawn from
the battery
After the test:
•
Battery voltage, battery current, test duration, capacity drawn from
the battery at end of test
The capacity test is finished when the final discharge voltage or the
max. discharge time is reached. It can be interrupted using the DOU.
After the test, the system automatically switches back to battery
charging.
ATTENTION:
As the battery is partly or completely discharged, the full standby
time of the UPS is not available in the event of a mains failure.
i
NOTE:
In the event of a battery fault, the system must be switched over
to the SBS (capacity check / capacity test).
