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JUPITER-(3000K, 6000K, 9000K)-H1 Smart
Transformer Station
User Manual
Alar
Alarm
m ID
Name
2302
IMD
Warning in
Low-
Voltage
Cabinet A
2303
SPD Fault
in Low-
Voltage
Cabinet A
2304
Overtempe
rature-
induced
Tripping in
Low-
Voltage
Cabinet A
Issue 02 (2023-09-30)
Alarm
Possible Cause
Severity
Minor
The 800 V cable or DC
side is grounded or the
impedance is low.
Warning
The SPD takes an
action.
Major
1. The cooling system
is faulty.
2. The power loop
experiences
overcurrent.
3. The T/H sensor is
faulty.
Copyright © Huawei Technologies Co., Ltd.
6 System Maintenance
Suggestion
1. Disconnect the MCCB and inverter
in sequence, observe the IMD
impedance change, locate the
faulty loop, and rectify the fault.
2. Check whether condensation or
contaminant particles accumulate
on the surface of the bus subrack
or insulator. If yes, disconnect the
power supply and then perform
dehumidification or clean up
foreign matters.
3. Check whether the insulation
resistance of the low-voltage loop
cable is normal. If no, rectify the
fault.
4. If the fault persists, contact your
dealer or technical support.
1. Check whether the SPD takes an
action or is faulty. If yes,
disconnect the power supply and
replace the SPD.
2. If the fault persists, contact your
dealer or technical support.
1. Check whether the cooling system
is faulty. If yes, rectify the fault by
referring to the user manual.
2. Check whether overcurrent occurs
in the low-voltage power loop. If
yes, rectify the fault.
3. Check whether the T/H sensor is
normal. If not, replace the T/H
sensor.
4. If the fault persists, contact your
dealer or technical support.
111
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