Huawei SUN2000 Quick Installation Manual page 8

Main Second-
Menu Level Menu
Wizard Language
Date&Time
Grid Code
Main Menu Settings
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Third-Level
Fourth-Level Menu
Menu
- -
Date -
Time -
- -
Isolation(Ad Input Grounded, With
vanced User) TF
Input Ungrounded,
Without TF
Input Ungrounded,
With TF
Set based on site requirements.
Set based on site requirements.
Set based on site requirements.
China medium-voltage power grid,
choose CHINA-MV480.
China low-voltage power grid,
choose NB/T 32004.
For other cases, see the Appendix.
When the PV- is grounded, an
isolation transformer should be
connected. Set Isolation to Input
Grounded, With TF.
When the PV- is not grounded, set
Isolation to Input Ungrounded,
Without TF or Input Ungrounded,
With TF.
7
Setting