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7 Commissioning
7.1 Verify before Commissioning
PV Arrays
The PV array should be checked before operating the inverter, and to ensure
that the po
sitive and negative mustn’t be misconnect, otherwise, the damage
may be caused to the inverter. Make sure that the open -circuit voltage of
photovoltaic array doesn’t exceed the required voltage.
DC Input
Make sure that the DC terminals of the inverter are connected correctly and
maintained consistent with the PV array.
AC Output
Make sure that the AC-side of inverter is connected correctly, and phases of
AC-side are connected correctly.
Verify of the water pump motor parameters
Check the electrical paramete rs on water pump motor nameplate: the rated
input voltage and input current frequency, to ensure inverter is matched with
the pump.
7.2 Inverter being power on for the first time
Choose sunny day, and make sure the normal operation of your solar pumping
system. Make sure that inverter work under high output power, high output
frequency as much as possible. Please ensure the following condition before
commissioning.
●
Ensure that the inverter is connected correctly to the pump
●
Ensure that the polarity of PV arrays are correct.