Project

Service Content

Inspection Frequency

Background System Monitoring

Analyze power station data, real-time troubleshooting of equipment failures, data anomalies, etc.

Once/half day

Power Station Insurance Purchase

Property insurance for photovoltaic power stations, beneficiary is Wanhui

Once/year

Power Station Safety and Operation Inspection

Grid

Connection

Cabinet

Area

Measurement System: The energy meter displays normally, no alarms, energy data is correct, and the error is within the specified range.

Once a month (the above is the fixed inspection frequency; if a fault occurs on-site, a safety and operation inspection of the power station will be conducted while handling the fault.)

Current Transformer: Check for abnormalities in voltage and current transformers, ensure connections are secure.

Switch position indication matches switch status; energy storage device status is correct.

'Closed' in operating position shows three-phase indicator lights are on.

'Bus voltage meter displays consistent with rated voltage; no discharge sound inside the switch cabinet; no odor or other abnormal sounds.'

'Isolation knife switch's static and dynamic contacts are in good contact; no overheating.'

'Isolation knife switch operating mechanism is intact.'

'Switch open/close position indication is correct; switch has no abnormal sound or odor.'

'Equipment body has no hanging objects; circuit breaker body has no abnormal sounds.'

'Cable joint insulation has no aging or damage.'

'Inverter'

'Current Load (KW)'

'DC Side Current (A)'

'Inverter Temperature (℃)'

'Status of each indicator light'

'Status of each operating parameter'

'Fault Status'

'Inverter Operating Status'

'Check for deformation of inverter casing.'

'Components'

'Are photovoltaic panels clean?'

'Are photovoltaic panels broken?'

'Are photovoltaic panels loose or falling off?'

'Are photovoltaic panels deformed?'

'Do photovoltaic panels have hot spot phenomena?'

'Is there any deformation in the bracket?'

'Is grounding good?'

'Is there any heating or deformation in the junction box?'

'Is the foundation solid?'

'Other Areas'

'Check if cable trays are loose or falling off, whether there are damages to maintenance passages, etc., for faults or anomalies in other areas of the power station.'

'Typhoon Pre- and Post-Inspection'

'Inspect overall fastening conditions of the power station, drainage conditions and check for other safety hazards.'

'Based on actual conditions'

'Power Station Operation Report'

'Conduct comprehensive analysis of the power station during operation cycle and provide reasonable optimization suggestions.'

Once/year

'Power Station Cleaning'

'Arrange cleaning based on actual generation efficiency situation.'

'4 times/year'

'Annual Maintenance'

'Conduct deep maintenance on the entire power station.'

Once/year

'Hot Spot Detection'

(55): 'Fault Handling'

Once/year

(57): 'Real-time'

(59): 'Electric Meter Data Recording'

(61): 'Equipment Replacement'

(63): 'Gift monitoring equipment. '

Meter data transcription

Once a month

equipment replacement

Provide equipment warranty

Gift of monitoring equipment

1 set