Thytronic XMR-V 4V - Page 105

FUNCTION CHARACTERISTICS
105
F27H-59H.ai
&
RESET
t
U3H
>
0T
TRIPPING MATRIX (LED+RELAYS)
UE3H Start
Iin-3H< Start
Uin-3H< Start
UE3H Trip
UE3H Block1
&
≥1
t
U3H
>
&
UE3H Start
UE3H Trip
UE3H Start
UE3H Start
UE3H Trip
UE3H Trip
RESET
t
U3H
<
0T
TRIPPING MATRIX (LED+RELAYS)
UE3H Start
UE3H Trip
t
U3H
<
(ON≡ Inhibit )
(ON≡
Block )
(ON≡
Inhibit )
U< inhibition
Max
Min
74CT Block
CT fault
&
State
U
IN3H
<
&
U
12
U
23
U
31
I
L1
I
L2
I
L3
U
E3H
≥ U
E3H
>
U
E3H
>
U
E3H
mode
U
E3H
≤ U
E3H
<
U
E3H
<
U
E3H
&
&
U
12
≤ U
IN3H
<
U
12
≤ U
IN3H
<
U
12
≤ U
IN3H
<
I< inhibition
State
I
IN3H
<
&
I
L1
≤ I
IN3H
<
I
L2
≤ I
IN3H
<
I
L3
≤ I
IN3H
<
F2759HS1 Block3
IF Start
=0 if 20≤f≤70 Hz
&
Enable (ON≡Enable)
Block1 input (ON≡Block)
Block1
Block1
Block1
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
Logic diagram concerning the - 27: 100% stator earth fault with 3rd harmonic (27H-59H)
XMR-D EQUIPMENT MANUAL
Ed. 2.9 - 02/2021