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7.2.6.5
FRT (Fault ride through)
This function is only for Germany MV, Italy LV, and Italy MV. It is not
recommended that an end customers modify the default values.
FRT – 1/2
a
Dead band - Vh
b
Dead band - Vl
K factor
c
Vdrop
d
t1
e
U1
f
t2
g
FRT – 2/2
h
t3
i
Mode
21. Jun 2010 13:50
[
+10
] %
[
-10
] %
[
2.0
]
[
5
]
%
[
]
ms
150
%
[
]
20
[
1.5
] s
21. Jun 2010 13:50
[
3.0
] s
[
ON
]
f
d
Figure 7-25 FRT setting page
-10
c
K factor
U
U
grid/
nom
100%
1
U2
2
U1
Udrop
0
t1
t2
e
g
Fault occurence
I
/I
B
n
c
K factor
+10
U/Un
b
a
3
4
t3
h
time
48
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