Application Scenarios - Goodwe ET Series User Manual

User Manual V1.0-2022-08-30

3.2 Application Scenarios

• The PV system is not suitable to connect equipment that relies on a stable power supply,
such as medical equipment to sustain life. Ensure that no personal injury is occurred when
the system is disconnected.
• Avoid loads with high start-up current like high-power water pumps in the PV system.
Otherwise, the off-grid output may fail due to excessive instantaneous power.
• BACK-UP is not recommended if the PV system is not configured with batteries. Otherwise,
the risk in system power usage is beyond the equipment manufacturer's warranty scope.
• Factors such as: temperature, humidity, weather conditions, etc. may limit the battery's
current and affect its load.
• If a rapid shutdown (RSD for short) module is configured in a PV system, make sure that
the RSD module matches the integrated RSD transmitter in the inverter, and if not, the
shutdown function may fail.
• When single overload protection occurs, the inverter can restart automatically; however,
the restarting time will be extended if it happens several times. For a faster restarting, try it
via APP .
• When the grid is disconnected, the off-grid function of the inverter will be closed
automatically if the load capacity exceeds the inverter's rated power. To enable it, turn off
the large loads and ensure the load power is less than the rated power of the inverter.
• Nomral household loads can be supported when the inverter is in back-up mode. Accepted
loads as below:
• Inductive loads: 1.5P non-inverter air conditioner can be connected to the inverter. If
two or more non-inverter air conditioners are connected, the back-up mode may be
unstable.
• Capacitive load: total power ≤ 0.66 times of the inverter's rated output power.
WARNING
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03 Product Introduction