Ch Q (U) - Fronius Galvo Serviceanleitung

Ch Q (U)

Specification of relative reactive power depending on grid voltage
The characteristic is defined by max. 4 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
cos φ
Example for Fronius Galvo
76
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.
0 (x)
110
3
2
100
1
90
-53 -32 0 +32
Q
rel min
P
-0,95
͌
(3)
(2)
*
(1)
Q = -32 % Q
rel rel
ind.
Setting range
U: 80 -120 %
Q: -53 - 0 - +53 % (Fronius Galvo)
-71 - 0 - +71 % (Fronius Symo)
U: 80 -120 %
Q: -53 - 0 - +53 % (Fronius Galvo)
-71 - 0 - +71 % (Fronius Symo)
U: 80 -120 %
Q: -53 - 0 - +53 % (Fronius Galvo)
-71 - 0 - +71 % (Fronius Symo)
U: 80 -120 %
Q: -53 - 0 - +53 % (Fronius Galvo)
-71 - 0 - +71 % (Fronius Symo)
Axis
Characteristic point
Example:
Characteristic defined by 4 characteristic
cap.
points
0: U = 95 %, Q = 32 %
1: U = 97 % Q = 0 %
2: U = 104 %, Q = 0 %
3: U = 105 %, Q = -32 %
0
(1)
Q [%]
(2)
+53
1 (y)
Q (3)
rel max
cos φ +0,95
͌
*
(3)
(2)
Q
= +32 %
cap.
(1)
Ch Q (U) P-Lockout = 5 %
Ch Q (U) P-Lockin = 30 %
Ch Q (U) Cos. φ Min. = 0.9
Detail:
P
(3)
(3)
(3)
P
Q
Q