Sungrow MVS4480-US System Manual

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11.2 Maintenance Period
11.2.1 Maintenance (Once Every Three Years)
Item Check method
Monitoring and protective
equipment of the transformer
• Oil thermometer: Alarm temperature and tripping
temperature.
• Pressure relief valve: Check whether the pressure re-
lief valve is in good contact.
• Oil level: Check whether the oil level is at a normal
range.
• Pressure gauge: Check if the pressure gauge is
normal.
Transformer oil leakage
Check these components for oil leakage:
• De-energized tap-changer
• Pressure gauge
• Oil level gauge
• Oil temperature gauge
• Sleeve
• Pressure relief valve and sample oil
• Sealing part
11 Routine Maintenance System Manual

Sungrow MVS4480-US Specifications

General

Brand	Sungrow
Model	MVS4480-US
Category	Inverter
Language	English