Delta RPI Series - Constant Q and Q(V) Controls

Figure 5-26 : Constant Q parameters
Figure 5-27 : Q(V) page
Like Constant cosphi function, users can assign a percentage of reactive power
in Constant Q page.
Q(V) is a control mode that inverter will provide reactive power according to grid
voltage. For country Italy MV and Italy LV, users can set lock-in power and lock-out
power to assign Q(V) function operation interval.
►
Constant cosphi
Cosphi (P)
Constant Q
Q(V)
Mode
Fix Q
►
OFF
Ind 90%
EXIT
ENT
►
Constant cosphi
Cosphi (P)
Constant Q
Q(V)
Mode
V1s
V2s
Qs limit
►
OFF
248.4V
253.0V
Ind 44%
V1i
V2i
Qi limit
T delay
►
211.6V
207.0V
Cap 44%
10.00s
P lock-in
P lock-out
►
20%
5%
EXIT
EXIT
EXIT
ENT
V
1s
V
2s
V
1i
V
2i
Q
i limit
Q
s limit
V
Q
V
1s
V
2s
V
1i
V
2i
Q
i limit
Q
s limit
V
Q
Curve A Curve B
Others Italy MV & Italy LV
Figure 5-28 : Q(V) parameters
5.2.8.6 Constant Q
5.2.8.7 Q(V)
48
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