Thytronic XMR-D - Page 170

170
FUNCTION CHARACTERISTICS
Binary input INx (x=1...8-16)
T 0
Logic
INx t
ON
INx t
ON
INx t
OFF
T0
n.o.
n.c.
INx t
OFF
Binary input INx (x=1...8-16)
T 0
Logic
INx t
ON
INx t
ON
INx t
OFF
T0
n.o.
n.c.
INx t
OFF
Fun_F50-27.ai
&
&
&
≥1
≥1
≥1
TRIPPING MATRIX (LED+RELAYS)
IUE> Start
UUE> Start
I
UE
> Start
U
UE
> Start
50+27 Trip
50+27 Trip
50+27 Trip
50+27 Start
50+27 Block3
50+27 Block1
&
&
&
Enable (ON≡Enable)
Block1 input (ON≡Block)
Block1
Block1
Block1
VT position
52a
t
UE
t
UE-RES
t
UE-RES
T0
RESET
t
UE
0T
I
L1
I
UE
>
I
L1
≥ I
UE
>
I
L2
I
L2
≥ I
UE
>
I
L3
I
L3
≥ I
UE
>
U
L1
U
UE
<
U
L1
≤ U
UE
<
U
L2
U
L2
≤ U
UE
<
U
L3
U
L3
≤ U
UE
<
74VT Block
VT fault (74VT)
(=0 without fault)
VTs Grid side
VTs Generator side
Inadvertent energization element (50+27) - First element logic diagram
XMR-D EQUIPMENT MANUAL
Ed. 2.9 - 02/2021