Replacing An Mccb - Huawei JUPITER-3000K-H1 Smart User Manual

JUPITER-(3000K, 6000K, 9000K)-H1 Smart
Transformer Station
User Manual
Figure 6-26 Removing the SPD from the JUPITER-9000K-H1
Step 4 Install a new SPD.
Step 5 Reinstall the cables.
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6.8.4 Replacing an MCCB

Context
If an MCCB is faulty and cannot be repaired during maintenance, power it off and
replace it.
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Issue 02 (2023-09-30)
NO TE
The JUPITER-3000K-H1 does not have LV PANEL B. The heater position in LV PANEL A is the
same as that of the JUPITER-6000K-H1.
If the short-circuit current of the MCCB is less than or equal to Icu (ultimate
short-circuit breaking capacity), the MCCB needs to be replaced after one
occurrence of short circuit.
If the short-circuit current of the MCCB is less than or equal to Ics (service
breaking capacity), the MCCB needs to be replaced after three occurrences of
short circuit.
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