Constant Q; Q(V) - Delta M88 Series Operation And Installation Manual

Commissioning

4.9.2.3 Constant Q

Like Constant cosphi function, users can assign a percentage of reactive power
in Constant Q page.
Constant cosphi
Cosphi (P)
►
Constant Q

Q(V)

4.9.2.4 Q(V)
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)
ENT
EXIT
Figure 4-29 : Constant Q page
ENT
EXIT
EXIT
EXIT
Figure 4-30 : Q(V) page
60
Mode
►
Fix Q
Mode
►
V1s
V2s
Qs limit
V1i
►
V2i
Qi limit
T delay
P lock-in
►
P lock-out
OFF
Ind 90%
OFF
277.0V
305.0V
Ind 44%
277.0V
233.0V
Cap 44%
10.00s
0%
0%