Sungrow SG4950HV-MV, Системное руководство

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Grounding and
equipotential connections
•
Check whether the grounding connection is
performed properly and the grounding resistance is
less than 4Ω.
•
Check whether the equipotential connections inside
the MV Station are performed properly.
•
Check whether the equipotential connection of the oil
tray is performed properly.
Fan
•
Check the running status of the fans.
•
Check whether the fan blades have cracks.
•
Check whether the fan makes abnormal noise during
running.
Screws Check all screws inside the MV Station.
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Safety function
•
Check the stop functions of the emergency stop
button and the LCD.
•
Simulate shutdown
•
Check the warning labels and other device symbols
for completeness and legibility, and replace them in
time if necessary.
Software maintenance
Inspect all parameter settings.
Module cleanness
•
Check the temperature and cleanness of the
radiator. If necessary, clean the radiator with a
vacuum.
•
If necessary, replace the filter.
•
Note: Check the ventilation performance of the air
inlet. Otherwise, a fault may occur in the module due
to overheat caused by poor ventilation.
System Manual 12 Routine Maintenance