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JUPITER-(3000K, 6000K, 9000K)-H1 Smart
Transformer Station
User Manual
Alar
Alarm
m ID
Name
2341
Unloaded
State of
Disconnect
or Spring in
Transforme
r Cabinet
G2
2342
Circuit
Breaker
Switch-off
Failure in
Transforme
r Cabinet
G2
2343
Transforme
r
Overvoltag
e
Protection
Action
Issue 02 (2023-09-30)
Alarm
Possible Cause
Severity
Major
1. The power supply
to the secondary
loop of the ring
main unit is
abnormal.
2. The travel switch of
the energy storage
loop is damaged.
3. The rectifier bridge
of the energy
storage loop is
burnt.
Major
The operation loop of
the circuit breaker is
faulty. As a result, the
remote switch-off fails.
Major
1. The medium-
voltage power grid
experiences
overvoltage.
2. The medium-
voltage cable is
grounded in single-
phase mode.
Copyright © Huawei Technologies Co., Ltd.
6 System Maintenance
Suggestion
1. Check whether the power supply
to the secondary loop of the ring
main unit is abnormal. If yes,
repair the power supply.
2. Check whether the travel switch
of the energy storage loop is
damaged. If yes, replace the
component.
3. Check whether the rectifier bridge
of the energy storage loop is
damaged. If yes, replace the
rectifier bridge.
4. If the fault persists, contact your
dealer or technical support.
1. Check whether the operation loop
of the circuit breaker is faulty. If
yes, replace the component.
2. If the fault persists, contact your
dealer or technical support.
1. Check and download the relay
protection event records of the
ring main unit onsite, compare the
records with the monitoring data
of the booster station, identify the
fault cause, and rectify the fault.
2. Check whether the medium-
voltage cable is damaged. If yes,
repair the cable.
3. Rectify the fault before switching
on the medium-voltage circuit
breaker.
4. If the fault persists, contact your
dealer or technical support.
129
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