Project

Inspection Content

Inspection Frequency

APP Query

Analyze the power station data, and check for equipment failures and data anomalies in real time.

Half a day/time

Safety and operation inspection of the power station

Grid connection cabinet area

Metering 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 transformers: Check for abnormalities in voltage and current transformers, and whether connections are secure.

Switch position indication matches switch status, energy storage mechanism status is correct.

When closed in operating position, high voltage live display 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 without overheating.

Isolation knife switch operating mechanism is intact.

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

The equipment body has no hanging objects; there are no abnormal sounds inside the circuit breaker body.

Cable joint insulation shows no aging or damage.

Inverter

(KW) Current Load

(A) DC Side Current

(℃) Inverter Temperature

(Status of each indicator light)

(Status of each operating parameter)

(Fault situation)

(Inverter operating condition)

(Check for deformation of inverter casing)

(Module)

(Check if photovoltaic panels are clean)

Photovoltaic panels have no breakage

Photovoltaic panels have no deformation

Check if brackets are deformed

Check if junction boxes show heating or deformation

Typhoon pre- and post-inspection

'According to actual conditions'

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

'Module cleaning'

'Four times a year'

'Conduct deep maintenance on the overall power station'

'Use professional instruments to conduct hot spot detection on all modules'

'Handle recovery on-site after faults occur'

'Electric meter data'

'Once a month'

Component cleaning

Use manual and electric tools for cleaning (arrange cleaning according to the actual power generation efficiency)

4 times/year

Annual maintenance

Conduct in-depth maintenance on the entire power station

'Once a month'

Hot spot detection

Use professional instruments to perform hot spot detection on all components

Fault handling

After a malfunction occurs, go to the site to handle and restore it

real time

Electricity meter data

Electric meter reading

Once a month