Commissioning; Connecting The Ac Power Supply - Huawei ETP48400-C9A2 User Manual

ETP48400-C9A2 Embedded Power
User Manual
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6.1 Connecting the AC Power Supply

Procedure
Step 1 Measure the input voltage on the AC input circuit breaker. The value should range from 85 V
AC to 300 V AC.
Step 2 Switch on the AC input circuit breaker and measure the output voltage of the AC input circuit
breaker. The value should range from 85 V AC to 300 V AC.
Step 3 Check that the run indicators on the rectifiers are steady on.
Step 4 Measure the voltage between the –48 V busbar and the RTN+ busbar. The value should range
from –42 V DC to –58 V DC.
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Issue 05 (2020-04-07)
Performing commissioning procedure provided in this chapter may result in power failure
or alarms. Inform the alarm center before commencing the procedure and after completing
the procedure.
Commissioning should be performed by trained personnel according to the commissioning
instructions provided in this chapter.
Commissioning is performed with the power on. Before you perform commissioning,
remove any conductors such as jewelry or watches, stand on dry insulating material, and
use insulated tools.
During commissioning, do not establish contact between electrical points that have
different electric currents.
Check that the status of a unit or component meets requirements before turning on its
switch.
If you are maintaining or servicing equipment and do not want others to perform any
operation, attach the label "Currently being serviced. Do not switch on." to the equipment.
During commissioning, shut down the power system immediately if any fault is detected.
Rectify the fault, start the power system, and proceed with the commissioning.
Copyright © Huawei Technologies Co., Ltd.
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Commissioning

6 Commissioning
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