Cosphi (P) - Delta M88 Series Operation And Installation Manual

4.9.2.2 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 4-27 : Cosphi (P) page
cosφ
Q upper
Q lower
P lower
Figure 4-28 : Cosphi (P) curve
Mode
►
ENT
Q upper
P lower
Q lower
EXIT
P upper
►
V lock-in
EXIT
V lock-out
1
P upper
59
Commissioning
OFF
Ind 1.00
45%
Ind 0.90
100%
0V
0V
P/Pn