Protection Parameters - Sungrow SG3125HV-20 System Manual

10 LCD Menu Operation

10.13.3 Protection Parameters

S S e e t t t t i i n n g g P P r r o o t t e e c c t t i i o o n n P P a a r r a a m m e e t t e e r r
step 1 Tap "Function" from the default menu.
step 2 Tap "Set-parameter".
step 3 Tap "Pro-parameter" after entering the correct password.
Set the protection parameter by tapping the pop-up keypad and tap ENTER to confirm
setting. Tap "Prev" or "Next" to turn pages up or down.
- - - - E E n n d d
D D e e s s c c r r i i p p t t i i o o n n o o f f P P r r o o t t e e c c t t i i o o n n P P a a r r a a m m e e t t e e r r s s
Protection parameter range and default value are shown in the following table.
P P a a r r a a m m e e t t e e r r
Ⅰ_Vgrid-max(%)
Ⅱ_Vgrid-max(%)
Ⅲ_Vgrid-max(%)
Ⅳ_Vgrid-max(%)
Ⅴ_Vgrid-max(%)
Recover_Vgrid-max(%)
Ⅰ_T-Vhigh trip(ms)
Ⅱ_T-Vhigh trip(ms)
Ⅲ_T-Vhigh trip(ms)
Ⅳ_T-Vhigh trip(ms)
Ⅴ_T-Vhigh trip(ms)
Ⅰ_Vgrid-min(%)
80
D D e e s s c c r r i i p p t t i i o o n n
Set the grid over-voltage protection Ⅰ value.
Protection is activated when voltage exceeds this
value.
Set the grid over-voltage protection Ⅱ value.
Protection is activated when voltage exceeds this
value.
Set the grid over-voltage protection Ⅲ value.
Protection is activated when voltage exceeds this
value.
Set the grid over-voltage protection Ⅳ value.
Protection is activated when voltage exceeds this
value.
Set the grid over-voltage protection Ⅴ value.
Protection is activated when voltage exceeds this
value.
The inverter recovers normal operation when grid
voltage is below this value
Grid over-voltage protection Ⅰ trip time
Grid over-voltage protection Ⅱ trip time
Grid over-voltage protection Ⅲ trip time
Grid over-voltage protection Ⅳ trip time
Grid over-voltage protection Ⅴ trip time
Set the grid under-voltage protection Ⅰ value.
Protection is activated when voltage is below this
value.
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