Based the size the grid, the injected current may too small calculate the pa-
rameters correctly.34724
50.6
-0.00 0.Page 190 Commissioning current injection
We take care it.
Figure 124: Example for the pulse pattern for injection with component
Figure 125: Frequency spectrum for injection with component
The main disadvantage injecting with component the injection current that
the biggest part this current Hz.8
1
I
/
A
t ms
0 100 150 200 250
0
0. this case, the power auxiliary winding earthed directly the coil.2
0
0.4
0.29383
I
/
A
f Hz
.33 0.5
0.6
0.1
0.
0 100 150 200 250
-1
-0.6
41.67 0.2
0.
13.50000
58.3
0. This clearly visible Figure 125.3 Current injection options with and without Hz
component
LP
I CI
U1
Une
L2
L1
Figure 123: Simplified current injection diagram with three frequencies
The next figure shows the progression the injected current for the activation displayed in
Figure 123.4
0.2
0.4
-0. The grid parame-
ters are calculated using the current injection the two adjacent frequencies and 58
Hz.8
-0
