Sungrow ST2752UX, Инструкция по эксплуатации и обслуживанию

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8
Item Check method
Air inlet and outlet
Check the temperature of the radiator and the amount of dust
accumulated. Clean heat-dissipation modules with a vacuum
cleaner if necessary.
Wiring and cable
layout
Completely power off the devices inside the BESS before checking.
For any non-conformances found during inspection, correct them
immediately.
• Check whether the cable layout is normal and whether there is a
short circuit. For any non-conformances found during inspection,
correct them immediately.
• Check whether all cable entry are well sealed.
• Check whether there is water seepage inside the BESS.
• Check whether the power cables are loose, and fasten them
again by the torque specified previously.
• Check whether the power cables and control cables are
damaged, especially if the surface contacting the metal surface is
cut.
• Check whether the insulation tapes on the power cable terminals
fall off.
Ground
connection and
equipotential
connection
• Check whether the ground connection is correct and the
grounding resistance shall be no more than 4Ω.
• Check whether the equipotential connection inside the integrated
BESS is correct.
Fan
• Check the running status of fans.
• Check whether fans are blocked.
• Check if there is abnormal noise during operation of the fans.
Screw
Check whether internal screws fall off.
3.2.3 Maintenance (Every half a year to once a year)
Item Check method
Safety function
• Check whether the shutdown key on the touchscreen and the
emergency stop button work normally.
• Simulate shutdown.
• Check the warning marks and other device marks, and replace
them timely when they are fuzzy or damaged.
Software
maintenance
Check the settable parameters on the Web.
3 Routine Maintenance Operation & Maintenance Instruction