Routine Maintenance - Huawei SUN2000-100KTL Series User Manual
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SUN2000-(100KTL, 110KTL, 125KTL) Series
User Manual
Step 4 Measure the DC current of each PV input string using a clamp meter that is set to
the DC position.
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Step 5 Open the maintenance compartment door, install a support bar, and use a
multimeter to measure the voltage between the AC terminal block and the
ground. Ensure that the AC side of the solar inverter is disconnected.
Step 6 Turn off all DC input switches of the solar inverter.
Figure 8-2 Power-off for maintenance
Step 7 Wait for 15 minutes and troubleshoot or repair the inverter.
● Do not open the host panel for maintenance if the solar inverter is emitting
● If the solar inverter does not emit odor or smoke and is intact, repair or restart
----End
8.3 Routine Maintenance
To ensure that the solar inverter can operate properly for a long term, you are
advised to perform routine maintenance on it as described in this chapter.
Issue 07 (2020-09-15)
If the current is less than or equal to 0.5 A, go to the next step.
If the current is higher than 0.5 A, wait until the solar irradiance decreases
and the PV string current decreases below 0.5 A at night, and then go to the
next step.
WARNING
odor or smoke, or has obvious exceptions.
it based on the alarm handling suggestions. Do not stand in front of the solar
inverter during the restart.
Copyright © Huawei Technologies Co., Ltd.
8 Maintenance
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Troubleshooting
