Frt (Fault Ride Through) - Delta RPI M30A_120 Operation And Installation Manual

Turn On PV Inverter
Q
s limit

5.2.9 FRT (Fault ride through)

Some area requests that inverter should keep connected to grid when grid
voltage drops suddenly in few seconds. In these areas, users can enable FRT
function and adjust the parameters to meet the requirement.
General Settings
Install Settings
Active/Reactive Pwr
FRT
100%
Udrop
Others
V
V
2s
V
Q
1s
i limit
V
1i
V
2i
Curve A
Figure 5-29 : Q(V) parameters
ENT
Password:
EXIT
Figure 5-30 : FRT page
U U
grid/ nom
Umin
Stay connected
U1
Disconnect from grid
t1
0
Fault occurrence
Figure 5-31 : FRT Parameters
Italy MV & Italy LV
Q
Q
s limit
Warning:
Adj. would affect
energy production.
56
V
V
2s
V
Q
1s
i limit
V
1i
V
2i
Curve B
ENT
Mode
Dead Band
Vdrop
t1
EXIT
U1
t3
EXIT
K factor
t3
time
Q
OFF
-10%
0%
0.30s
20%
3.00s
2.0