Connection Examples - Siemens 7XT3300-0BA00 Mode D'emploi

English

Connection Examples

U U
H+ H-
Figure 9 Connection of the 7XT33 to a DC-voltage supply via a 2-A protective switch
to Generator
Step-up Transformer
Earthing
Transformer
U
N
3
Generator
a b
Neutral
Transformer
U /√3
NG
500 V
Figure 10 Connection of the 100 % stator earth protection with earthing or neutral
transformer
48
2 A
2
4
5SY 5202-7
500 V
3
a
400 A/5 A
R
1FS5
b
15 VA
P1
P2
S2 S1
Burden < 0.5 Ω
NOTE
To ensure proper functioning of the 20-Hz protection principle, the load
must be > 0.5 Ω.
resistance R
L
1 1
3 2
7XT33
max. 3 A (20 Hz)
> 0.5 Ω
L
7XT3300-0*A00
+
-
Protection Cubicle
20-Hz Bandpass
7XT34
1B 1 1B4
1A4
660 Ω
660 Ω *1
330 Ω
1 A1
1A2 1A 3
*1: Line twisted
C53000-B1175-C129-1
20-Hz Generator
7XT 33
11
20 Hz
12
7UM62
R 13 U
E
R 14
J8
I
EE1
J7