CHARACTERISTICS
50
NV10B - Manual - 04 - 2022
Both overvoltage elements can produce the Breaker Failure output if the
U> BF
and
U>>BF
pa-
rameters are set to
ON.
The parameters are available inside the
Set \ Profile A(or B) \ Overvoltage - 59 \
U> Element
(
U>>
Element) \ Setpoints
menus.
[1]
All the named parameters can be set separately for
Profile A
and
Profile B
(
Set \ Profile A(or B) \
Overvoltage - 59 \
U> Element
(
U>> Element) \ Setpoints
menus).
Note 1 The common settings concerning the Breaker failure protection are adjustable inside the
Breaker Failure - BF
menu.
all-F59.ai
General logic diagram of the overvoltage elements - 59
U
U
U> Element
U>> Element
Start U>>
Start U>>
Start U>
Trip U>
Trip U>>
&
U> disbyU>>
U> inhibition
t
U> def
t
U> inv
U>
def
t
U>> def
U>>
def
U>
inv
U> Curve
U> Enable
State
Block1
BLK1U>
&
U>BLK1
Start U>
&
Block1
BLK1U>>
&
U>>BLK1
Start U>>
&
U>BF
Trip U>
&
U>BF
AND
U
U
L1
,
U
L2
,
U
L3
OR
Common configuration
Logic59
Fun-F59_S1.ai
U
> Curve
0
T
RESET
t
U>
0
T
TR
IP
PIN
G
M
AT
RIX
(
LE
D+R
EL
AY
S)
t
U>def
t
U>inv
Start U>
U>ST-K
Start U>
U>TR-K
U>ST-L
U>TR-L
Trip U>
Trip U>
Trip U>
BF Enable (ON
≡
Enable)
U>BF
towards BF logic
&
BLK1U>
U> BF
&
&
&
Enable (ON
≡
Enable)
Block1 input (ON
≡
Block)
U>BLK1
Block1
Block1
Binary input INx (x=1...8-16)
T
0
Logic
INx
t
ON
INx
t
ON
INx
t
OFF
T
0
n.o.
n.c.
INx
t
OFF
U> Inhibition
(ON
≡
Inhibit)
&
Logic59
≥1
&
U
L1
U
L2
U
L3
≥
1
&
State
U
>
inv
U
≥
U>
def
U
≥
U>
inv
U
>
def
&
State
ON
≡
Enable U> overvoltage element
U> Enable
Logic diagram concerning the first threshold (U>) of the overvoltage element - 59