ABB SPAU 130 C - Page 14

14
Example 3.
Generator pole
short-circuit
protection
Fig. 6. Generator pole short-circuit protection with relays SPAU 130 C and SPAJ 131 C. The
selector switch positions are shown in the table on the following page.
≅
SGR/1
U2
U3
U3
1111
DCBA
+-
Uaux
E
+
-
(~) (~)
SGR
100V
110V
1920 21 10 11 61 62 70 71 72 80 81 68 69 65 66
7
5324 68
SPAU 130 C
_
SIGNAL1 TRIP2 TRIP1
BS
IRF
100V
110V
16 1718
100V
110V
1314 15
IRF
3U<
TS2 TS1
SGB/5
SS1 SS2
U1
I/O
t<
t>,k>
3U>
6
8
73 2 4
5A
1A
5
SGR/1
SPAJ 131 C
U2
U3
U3
1111
D
CBA
+-
Uaux
E
+
-
(
~
)
(
~
)
≅
_
5A
1A
5A
1A
5 81 68 661 2 3 4 6 7 8 9 10 11 61 62 70 71 72 77 78 80 69 65
SGR
IRF
START1 SIGNAL1 TRIP2 TRIP1IRFBS
TS2 TS1
SGB
SS1 SS2
U1
5 4
I/O
3I>
t >>
t >,k
3I>>
L1 L2 L3
KK
-
+
GK
+
EXCITATION CB TRIP AND PRIME MOVER SHUT DOWN
GENERATOR CB TRIP
PRIME MOVER SHUT DOWN
GENERATOR AND EXCITATION CB TRIP
START1
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