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Section 8
Impedance protection
322
C
stat
R
V
N
ANSI11000008 V1 EN-US
Figure 159:
High-resistance generator grounding with a neutral point resistor
There are some alternatives for connection of the neutral point resistor as shown in
figure
160
(low voltage neutral point resistor connected via a DT).
Generator protection REG670 2.2 ANSI and Injection equipment REX060, REX061, REX062
Û
R
fault
V
N
I
inj
a
+
inj
-
b
1MRK 502 071-UUS A
Z
Bare
Z
Measured
Z
series
a
Z
R f
C
R
mT
N
stat
b
Stator Reference
Impedance Z
Ref
ANSI11000008_1_en.vsd
Application manual
I
inj
+
V
inj
-
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