Ch Q (U) - Fronius SnapINverter Serviceanleitung

Ch Q (U)

Specification of relative reactive power depending on grid voltage
The characteristic is defined by max. four characteristic points 0 - 1 - 2 - 3.
The coordinates must be entered for the characteristic points on the 0 (x) axis and on the
1 (y) axis.
-
-
-
Characteristic
point
0
1
2
3
Q
cos φ
(2)
(1)
Example for Fronius Galvo
a
-53 - 0 - +53
b,c,e,f,l
-71 - 0 - +71
d,g,h,i,j,k
-100 - 0 - +100
Coordinates
0-0 (x)
0-1 (y)
1-0 (x)
1-1 (y)
2-0 (x)
2-1 (y)
3-0 (x)
3-1 (y)
U [%]
ind. cap.
0 (x)
110
3
2
100
1
0
90
-53 -32 0 +32 +53
Q
rel min
P
-0,95
cos φ
͌
(3) (3)
*
Q = -32 % Q = +32 %
rel rel
ind. cap.
Setting range
U: 80 -120%
Q (see table)
U: 80 -120%
Q (see table)
U: 80 -120%
Q (see table)
U: 80 -120%
Q (see table)
Axis
Characteristic point
Example:
Characteristic defined by four characteris-
tic points
0: U = 95%, Q = 32%
1: U = 97% Q = 0%
2: U = 104%, Q = 0%
3: U = 105%, Q = -32%
(1) Ch Q (U) P-Lockout = 5%
Q [%]
(2) Ch Q (U) P-Lockin = 30%
1 (y)
(3) Ch Q (U) Cos. φ Min. = 0.9
rel max
+0,95
͌
* Detail:
(3)
(2)
Q
(1)
P
(3)
(3)
P
Q
Q
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