ABB RELION 670 SERIES REG670 - Page 330

C
stat
R
N
+
V
inj
-
I
inj
a
b
ANSI11000010_1_en.vsd
ANSI11000010 V1 EN-US
Figure 161: High-resistance generator grounding via a grounded wye-broken delta
transformer
It is also possible to make the injection via VT open delta connection, as shown in
figure
162.
Section 8 1MRK 502 071-UUS A
Impedance protection
324 Generator protection REG670 2.2 ANSI and Injection equipment REX060, REX061, REX062
Application manual