Cables - Huawei MTS9300A User Manual

MTS9300A Telecom Power (Ooredoo, Indonesia,
MTS9304A-HD2002)
User Manual
No. Maintenance Item
4 Check whether the
displayed total load current
is the same as the actual
current measured by a
clamp meter.
5 Check whether the
displayed battery charge
current is the same as the
actual current measured by
a clamp meter.
6 Check whether the
difference between the
displayed DC output
voltage and the measured
DC busbar voltage is less
than 0.5 V DC.

4.1.6 Cables

Table 4-6 Cable maintenance
No.
1
2
3
4
5
Issue 06 (2021-10-13)
Possible Fault Cause
● Battery current detection
fault.
● The SMU is faulty.
● The current monitoring
cable is loose.
● The SMU is faulty.
● The cabinet busbar and
cables are loose or in
poor contact.
● The SMU is faulty.
Maintenance Item
Check whether signal
cables and power
cables are separately
bound.
Check whether all
cables are bound
properly.
Check whether the
cabinet ground bar is
securely connected to
the site or equipment
room ground point.
Check whether ground
cables are rusty.
Check whether the DC
RTN+ busbar is
grounded.
Copyright © Huawei Technologies Co., Ltd.
Suggestion
1. Check that the current
2. Replace the SMU.
1. Check that the current
2. Replace the SMU.
1. Check and secure the
2. Replace the SMU.
If...
Cables are not
properly installed.
Cables are not
properly installed.
Cables are not
properly installed.
Cables corrode after
being used for a long
time.
The DC RTN+ busbar
is not properly
grounded.
4 Maintenance
monitoring cable is
securely connected.
monitoring cable is
securely connected.
cabinet busbar and cable
connections.
Then...
Bind signal cables and
power cables
separately.
Bind cables properly.
Connect the cabinet
ground bar to the site
or equipment room
ground point.
Replace rusty cables.
Connect the ground
cable to the DC RTN+
busbar properly.
47