Goodwe XS Series User Manual page 47

User Manual V1.1-2023-12-30
No. Fault
Grid Rapid
3
Overvoltage
Grid
4
Undervoltage
Cause
The grid voltage is
abnormal or ultra-high.
The grid voltage is lower
than the permissible
range, or the duration of
low voltage exceeds the
requirement of LVRT.
Solutions
1. If the problem occurs occasionally,
the utility grid may be abnormal
temporarily. The inverter will recover
automatically after detecting that the
utility grid is normal.
2. Check if the power grid voltage has
been operating at a high voltage for
a long time. If it occurs frequently,
please check if the power grid voltage
is within the allowable range.
• Contact the local power company
if the grid voltage exceeds the
permissible range.
• Modify the grid overvoltage
rapid protection threshold after
obtaining the consent of the local
power company if the grid voltage
is within the permissible range.
1. If the problem occurs occasionally,
the utility grid may be abnormal
temporarily. The inverter will recover
automatically after detecting that the
utility grid is normal.
2. If the problem occurs frequently,
check whether the grid voltage is
within the permissible range.
• Contact the local power company
if the grid voltage exceeds the
permissible range.
• Modify the undervoltage protection
threshold, LVRT or disable the
undervoltage protection function
after obtaining the consent of the
local power company if the grid
frequency is within the permissible
range.
3. Check whether the AC breaker and the
output cables are connected securely
and correctly if the problem persists.
43
Maintenance