Thytronic XMR-T - 4.5 Control and Monitoring

FUNCTION CHARACTERISTICS
157
all-FBF.ai
Block1
BLK1 BF
I
L1L
...I
L3L
I
E1
52a/52b
Trip ProtExt
Start BF
Trip BF
Block1
&
BF-BLK1
BF Enable I
BF
> I
EBF
> t
BF
General logic diagram of the breaker failure element - BF
TRIPPING MATRIX (LED+RELAYS)
Start BF
Start IBF>
Trip BF
Trip int-prot
&
&
&
&
Block1 input (ON≡Block)
BLK1 BF
Trip Int/Ext
Block1
Start BF
ON≡ CB Closed
Start BF
Trip BF
Trip BF
Trip ProtExt
52a
&
Block1 enable (ON≡Enable)
BF-BLK1
Block1
52a
I
BF
>
Max I
L1L
...I
L3L
≥ I
BF
>
I
L1L
I
L2L
I
L3L
I
EBF
>
I
E
≥ I
EBF
>
I
E1
≥1
RESET
t BF
0T
t
BF
≥1
Binary input INx
T 0
Logic
INx t
ON
INx t
ON
INx t
OFF
T0
n.o.
n.c.
INx t
OFF
Binary input INx
T 0
Logic
INx t
ON
INx t
ON
INx t
OFF
T0
n.o.
n.c.
INx t
OFF
Binary input INx
T 0
Logic
INx t
ON
INx t
ON
INx t
OFF
T0
n.o.
n.c.
INx t
OFF
52b
Binary input INx
T 0
Logic
INx t
ON
INx t
ON
INx t
OFF
T0
n.o.
n.c.
INx t
OFF
52b
Start IEBF>
“0”
CB Input
CB Input OFF
CB Input ON
Logic diagram concerning the breaker failure element -BF
XMR-T EQUIPMENT MANUAL
Ed. 2.9 - 02/2021