Application Scenarios - Goodwe ET Series User Manual

03 Product Introduction
Supported Grid Types
For the grid type with neutral wire, the voltage between the neutral wire and the ground must
be less than 10V.
TN-S
L1
L2
L3
N
PE
PE
Inverter

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 starting current like high-power water pumps in the PV system.
Otherwise, the off-grid output may fail due to excessive instantaneous power.
• Do not start the BACK-UP function if the PV system is not configured with batteries.
Otherwise, the manufacturer shall not be liable for related system risks.
• Factors such as: temperature, humidity, weather, etc. may limit the battery's current and
affect its loading capacity.
• The inverter supports UPS, and the switching time of UPS is less than 10ms. The UPS
function may fail to start if the BACK-UP load capacity exceeds the rated power of the
inverter.
• 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.
• Normal 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
• Capacitive loads: total power ≤ 0.6 times of the inverter's rated output power.
TN-C
L1
L2
L3
PEN
PE
Inverter
WARNING
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User Manual V1.1-2022-12-20
TN-C-S
L1
L2
L3
N
PE
PE
Inverter
TT
L1
L2
L3
N
PE
Inverter