Huawei SUN2000-(2KTL-6KTL)-L1 User Manual page 116

SUN2000-(2KTL-6KTL)-L1
User Manual
Figure E-1 Alarm details
Figure E-2
Step 4 Set the DC switch to OFF and check whether the connector or DC cable between
the possible faulty PV modules and the corresponding optimizers, or those
between the adjacent PV modules and the corresponding optimizers are damaged.
Issue 03 (2020-09-15)
Low Insulation Resistance alarm is still reported one minute after the
DC is supplied, check the percentage for possible short-circuit positions on the
Alarm details page and go to
NO TE
short-circuit position. Other percentages indicate that the fault occurs on a PV module
or cable in the PV string.
possible short-circuit positions. For example, if a PV string consists of 14 PV modules
including the previous and the next PV modules and the cables of PV module 4. The
of the percentage of the short-circuit position
and view the alarm information.
– If the Low Insulation Resistance alarm is not reported one minute after
the DC is supplied, the inspection on the PV string is complete. Choose
Device Commissioning > Maintenance > Inverter ON/OFF on the app
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E Locating Insulation Resistance Faults
Step 4.
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