Sungrow SG3425UD-MV, Системное руководство

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97
Maintenance (once every year)
Check item Check method
Container exterior
Check the following items and make corrections if
necessary:
• Check whether there are any inflammable or
combustible materials and other threats around or on
the top of the MV Station that may affect the normal
operation.
• Check whether the MV Station and the steel plate are
firmly welded, and whether there is any corrosion.
• Check whether any mechanical damage, painting
damage, oxidation, or the like occurs on the enclosure
of the MV Station.
• Check whether the monitoring window and the doors
close and open flexibly.
• Check whether the sealing strip is firmly in place.
Container interior
Check whether there is any dust, foreign objects, dirt, or
condensation inside the container.
Air inlet/outlet
Check whether the air inlet filters and ventilation ducts of
the MV Station and its internal devices are normal, and
clean or replace the filters if necessary.
Cable connection and
routing
• Check the MV Station when the internal devices are
completely
voltage-free! Make corresponding
corrections once any anomaly is founded.
• Check whether all cables and wires are properly routed
and without short circuit. Make corrections if case of
any anomaly.
• Check whether all cable entries are sealed properly.
• Check whether there is water leakage inside the MV
Station.
• Check whether the power cable is firmly connected. If
necessary, refasten the cable with the torque specified
in this manual.
• Check whether the power cable and control cable are
damaged, especially if the surface contacting the metal
is cut.
• Check if the insulation tape on the power cable terminal
is damaged or invalid
System Manual 12 Routine Maintenance