ABB REG670 - Page 314

C
stat
R
N
+
U
inj
-
I
inj
a
b
IEC11000010-3-en.vsd
IEC11000010 V1 EN
Figure 138: High-resistance generator earthing via a delta, grounded-wye
transformer
It is also possible to make the injection via VT open delta connection, as shown in
figure 139.
Section 7 1MRK502052-UEN B
Impedance protection
308
Technical manual