18
≅
SGR/1
U2
U3
U3
11
1
1
D
CB
A
+
-
E
SGR
100V
110V
19
20
21
10
11
61
62
70
71
72
77
78
80
81
68
69
65
66
7
5
32
4
6
8
SPAU 130 C
_
START1
SIGNAL1
TRIP2
TRIP1
IRF
100V
110V
16
1718
100V
110V
13
14
15
IRF
3U<
TS2
TS1
SGB/5
SS1
SS2
U1
I/O
t<
t>,k>
3U>
TIMER
START
S1
+
(
~
)
-
(
~
)
TIMER STOP
S2
L2
L3
L1
Uaux
BS
V
N
L1
Fig. 7. Test circuit for the overvoltage and undervoltage relay SPAU 130 C.
When the test circuit has been completed and
the selector switches properly set, the auxiliary
voltage can be connected to the relay. The
function of the test circuit can be verified by
means of a multimeter.