Single Phase Hybrid Inverter System Maintenance
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Chapter 9 System Maintenance
INVT hybrid inverter has undergone a series of tests before delivery. To maintain and extend the service life
of the inverter, you need to perform necessary routine maintenance in addition to using it in strict accordance with
this Manual.
9.1 Regular Maintenance of Inverter
Saving the
inverter’s
running data
Use the monitoring software to read the inverter data in real time, and
back up the recorded data periodically. Save the running data,
parameters and logs of the inverter recorded by the monitoring
software to a file. Check the monitoring software and view the
parameter settings of the inverter through the hand-held keyboard.
Inverter
Running
condition of
the inverter
Observe whether the inverter is installed securely, damaged or
deformed. Check if there is any abnormal sound during operation.
Check the variables when the system is running in on-grid state.
Check whether the heating of the inverter housing is normal, and use
the thermal imager to monitor the heating of the system.
Check the ambient humidity and dust around the inverter. If they
affect the heat dissipation of the inverter, shut down the inverter and
turn off the power supply, and clean the inverter with a soft brush or
dry cloth after it cools down.
Check whether the DC switch functions properly by turning it on and
off 10 times consecutively.
Check whether the cable connections and the terminals of the inverter
become loose. Check the cables for damage, especially whether there
are any cuts on the cable skin that may come in contact with metal
surface.
Check whether the sealing of the cable holes meets the requirements.
If any cable hole is not sealed or shows a large sealing gap, re-seal it.
Check the LCD screen and the system shutdown function. Simulate a
shutdown and check the shutdown signal communication. Check the
warning labels and replace them if necessary.
Make sure the inverter is disconnected from the power supply. WARNING
To operate the inverter, please wear personal protective equipment.