Constant Cosphi; Cosphi (P) - Delta RPI Series Operation And Installation Manual

5.2.8.4 Constant cosphi

Inverter can feed in a fixed reactive power to grid. Users can set the power
factor(cosphi) in Constant cosphi page.
► Constant cosphi

Cosphi (P)

Constant Q
Q(V)
5.2.8.5 Cosphi (P)
Cosphi (P) is a function that inverter will feed in reactive power when its output
active power reach the setting values. For country Italy MV and Italy LV, users
can set lock-in voltage and lock-out voltage to assign the operation interval.
When grid voltage reach the lock-in voltage(V lock-in), inverter will enable
cosphi (P) function automatically and disabled it when grid voltage reach lock-out
voltage(V lock-out).
Constant cosphi
Cosphi (P)
►
Constant Q
Q(V)
Figure 5-23 : Constant cosphi page
Figure 5-24 : Cosphi (P) page
cosφ
Q upper
Q lower
P lower
Figure 5-25 : Cosphi (P) curve
Mode
►
ENT
cosphi
EXIT
Mode
►
ENT
Q upper
P lower
Q lower
EXIT
P upper
►
V lock-in
EXIT
V lock-out
1
P upper
47
Turn On PV Inverter
OFF
Ind 1.000
OFF
Ind 1.000
45%
Ind 0.900
90%
241.5V
230.0V
P/Pn