Huawei SUN600-5KTL-L0 User Manual page 81

SUN600-(5KTL, 6KTL)-L0
User Manual
Alarm Alarm Name
ID
2062 Low Insulation
Resistance
Issue 02 (2022-03-10)
Alarm Possible Causes
Severity
Major Cause ID = 1
● A short circuit occurs
between the PV array
and the ground.
● The ambient air of the
PV array is damp and
the insulation between
the PV array and the
ground is poor.
Copyright © Huawei Technologies Co., Ltd.
8 System Maintenance
Troubleshooting
1. Check the output
impedance of the PV
array to ground. If there
is a short circuit or lack
of insulation, rectify it.
2. Check that the PE cable
of the inverter is
correctly connected.
3. If the impedance is
lower than the specified
protection threshold in
rainy and cloudy days,
set Insulation
resistance protection
using the mobile app, or
NMS.
Current insulation
resistance: x MΩ,
possible short circuit
position: x%. The short
circuit position is valid
for a single PV string. If
there are multiple PV
strings, check the PV
strings one by one. For
details, see F Locating
Insulation Resistance
Faults.
For details about how to
query the low insulation
resistance alarm, see
HUAWEI
SUN2000-2-6KTL-L1
and SUN6000-5/6KTL-
L0 Inverter Low
Insulation Resistance
Fault Indication Guide.
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